kopia lustrzana https://github.com/f4exb/sdrangel
Fix typing errors in readme's
Fixed with:
find . -name '*.md' -exec codespell --ignore-words-list=doas,ehr,lits,verry --write-changes --summary {} \+
pull/1245/head
Daniele Forsi
rodzic
17577caa5b
commit
902012641d
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@ -2,7 +2,7 @@
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<h2>Introduction</h2>
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This MIMO transmission only (MO) plugin can be used to drive a 2 channel MO device in order to produce a continuous wave signal (CW) with a control of hte phase between the two streams. When the MO device is connected to a two antenna system the resulting beam can be steered in direction using the phase difference. Control is made directly in angle units.
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This MIMO transmission only (MO) plugin can be used to drive a 2 channel MO device in order to produce a continuous wave signal (CW) with a control of the phase between the two streams. When the MO device is connected to a two antenna system the resulting beam can be steered in direction using the phase difference. Control is made directly in angle units.
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; This was designed more as a proof of concept of multiple output plugin rather than something really useful.
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@ -17,11 +17,11 @@ The interface is divided in 3 sections that will be detailed next:
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<h2>A. Settings section</h2>
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<h3>A.1. Decimation</h3>
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Input streams frome baseband are decimated by a power of two. Use this combo to select from 0 (no decimation) to 64 (2^6). The resulting channel sample rate is displayed next (A.2)
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Input streams from baseband are decimated by a power of two. Use this combo to select from 0 (no decimation) to 64 (2^6). The resulting channel sample rate is displayed next (A.2)
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<h3>A.2. Channel sample rate</h3>
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@ -131,7 +131,7 @@ Thus a possible procedure to determine DOA could be the following:
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2. Make an assumption for the wave to come from the positive or negative angles side
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3. Rotate the antennas axis slightly and if the DOA angle moves in the direction corresponding to your assumption (2) then the assumption is correct and the wave is coming from the side corresponding to your assumption. You can then refine the antenna axis direction to obtain a π/2 or -π/2 angle depending from which side the wave is coming. The scope `DOAP` projection is for waves coming from the positive angles side and `DOAN` for the negative angles side
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4. If when performing previous step (3) the DOA angle moves in the opposite direction to the one corresponding to your assumption then the wave is coming from the opposite side w.r to your assumption. You can then refine the antenna axis direction to obtain a ±π/2 DOA as in (3).
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5. Once the ±π/2 DOA angle (zero phase difference) is obtained at λ/2 distance betweeen antennas you can move your antennas further apart to refine the ±π/2 DOA angle.
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5. Once the ±π/2 DOA angle (zero phase difference) is obtained at λ/2 distance between antennas you can move your antennas further apart to refine the ±π/2 DOA angle.
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<h3>A.5. Phase difference correction</h3>
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@ -316,7 +316,7 @@ This is for future use when more than one incoming complex signals can be applie
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The amplitude range (vertical scale) can be set to any value from 1e-10 to 9.999e+10. Values are entered as mantissa (6.3 and 6.4) and exponent (6.5) values.
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I/Q signal range is +/-1 however values larger than 1 are accomodated for the general usage of the scope in other plugins.
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I/Q signal range is +/-1 however values larger than 1 are accommodated for the general usage of the scope in other plugins.
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When displayed signal can be negative (+/- scale) the range is -range to +range. When displayed signal is positive (ex: magnitudes) the range is 0 to 2×range.
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@ -359,7 +359,7 @@ This displays the unit multiplier for values on the vertical scale of the displa
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The amplitude range can be offset by any value from -5×10<sup>-10</sup> to 5×10<sup>10</sup>.
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I/Q signal range is +/-1 however values larger than 1 are accomodated for the general usage of the scope in other plugins.
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I/Q signal range is +/-1 however values larger than 1 are accommodated for the general usage of the scope in other plugins.
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@ -401,7 +401,7 @@ This area shows the current trace color. When clicking on it a color chooser dia
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<h3>11. Save traces in memory</h3>
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While in memory mode (see E.13 next) use this button to save the bank of traces in memory (50 last traces) to file. A file dialog will open to let you choose the file name and locaion. By default the file extension is `.trcm`.
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While in memory mode (see E.13 next) use this button to save the bank of traces in memory (50 last traces) to file. A file dialog will open to let you choose the file name and location. By default the file extension is `.trcm`.
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<h3>12. Load traces into memory</h3>
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@ -10,7 +10,7 @@ As well as displaying information received via ADS-B, the plugin can also combin
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The ADS-B plugin can send aicraft for display on the [Map Feature](../../feature/map/readme.md) alongside objects from other plugins and in 3D.
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The ADS-B plugin can send aircraft for display on the [Map Feature](../../feature/map/readme.md) alongside objects from other plugins and in 3D.
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@ -60,7 +60,7 @@ This sets the correlation threshold in dB between the received signal and expect
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<h3>9: Download Opensky-Network Aircraft Database</h3>
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Clicking this will download the [Opensky-Network](https://opensky-network.org/) aircraft database. This database contains information about aircrafts, such as registration, aircraft model and owner details, that is not broadcast via ADS-B. Once downloaded, this additional information will be displayed in the table alongside the ADS-B data. The database should only need to be downloaded once, as it is saved to disk, and it is recommended to download it before enabling the demodulator.
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Clicking this will download the [Opensky-Network](https://opensky-network.org/) aircraft database. This database contains information about aircraft, such as registration, aircraft model and owner details, that is not broadcast via ADS-B. Once downloaded, this additional information will be displayed in the table alongside the ADS-B data. The database should only need to be downloaded once, as it is saved to disk, and it is recommended to download it before enabling the demodulator.
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<h3>10: Download OurAirports Airport Databases</h3>
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@ -122,13 +122,13 @@ As a client:
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As a server:
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* For OpenSky Network, check Enable Server and set Port to 30005. You can check for successfull feeding at: https://opensky-network.org/my-opensky
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* For OpenSky Network, check Enable Server and set Port to 30005. You can check for successful feeding at: https://opensky-network.org/my-opensky
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The Beast binary and Hex formats are as detailed here: https://wiki.jetvision.de/wiki/Mode-S_Beast:Data_Output_Formats
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When Enable import is checked, aircraft data for aircraft anywhere in the world can be imported from OpenSky Network.
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A username and password are not required, but when specified, this allows the update period to be reduced to 5 seconds instead of 10 seconds.
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To limit network traffic and processing power requirements, a geographical region can be set via the mininum and maximum latitude and longitude fields.
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To limit network traffic and processing power requirements, a geographical region can be set via the minimum and maximum latitude and longitude fields.
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<h3>17: Open Notifications Dialog</h3>
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@ -226,7 +226,7 @@ The table displays the decoded ADS-B data for each aircraft along side data avai
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* ICAO ID - 24-bit hexidecimal ICAO aircraft address. This is unique for each aircraft. (ADS-B)
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* ICAO ID - 24-bit hexadecimal ICAO aircraft address. This is unique for each aircraft. (ADS-B)
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* Callsign - Aircraft callsign (which is sometimes also the flight number). (ADS-B)
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* Aircraft - The aircraft model. (DB)
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* Airline - The logo of the operator of the aircraft (or owner if no operator known). (DB)
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@ -248,7 +248,7 @@ The table displays the decoded ADS-B data for each aircraft along side data avai
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* Owner - The owner of the aircraft. (DB)
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* Updated - The local time at which the last ADS-B message was received.
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* RX Frames - A count of the number of ADS-B frames received from this aircraft.
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* Correlation - Displays the minimun, average and maximum of the preamable correlation in dB for each recevied frame. These values can be used to help select a threshold setting. This correlation value is the ratio between the presence and absence of the signal corresponding to the "ones" and the "zeros" of the sync word adjusted by the bits ratio. It can be interpreted as a SNR estimation.
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* Correlation - Displays the minimum, average and maximum of the preamable correlation in dB for each received frame. These values can be used to help select a threshold setting. This correlation value is the ratio between the presence and absence of the signal corresponding to the "ones" and the "zeros" of the sync word adjusted by the bits ratio. It can be interpreted as a SNR estimation.
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* RSSI - This Received Signal Strength Indicator is based on the signal power during correlation estimation. This is the power sum during the expected presence of the signal i.e. the "ones" of the sync word.
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* Flight status - scheduled, active, landed, cancelled, incident or diverted. (API)
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* Dep - Departure airport. (API)
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@ -268,12 +268,12 @@ If an ADS-B frame has not been received from an aircraft for 60 seconds, the air
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* Left click on a header to sort the table by the data in that column.
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* Double clicking in an ICAO ID cell will open a Web browser and search for the corresponding aircraft on https://www.planespotters.net/
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* Double clicking in an Callsign cell will open a Web browser and search for the corresponding flight on https://www.flightradar24.com/
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* Double clicking in an Az/El cell will set the aircraft as the active target. The azimuth and elevation to the aicraft will be sent to a rotator controller plugin. The aircraft information box will be coloured green, rather than blue, on the map.
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* Double clicking in an Az/El cell will set the aircraft as the active target. The azimuth and elevation to the aircraft will be sent to a rotator controller plugin. The aircraft information box will be coloured green, rather than blue, on the map.
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* Double clicking on any other cell in the table will centre the map on the corresponding aircraft.
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<h2>Map</h2>
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The map displays aircraft locations and data geographically. Four types of map can be chosen from in the Display Settings dialog: Aviation, Avation (Dark), Street and Satellite.
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The map displays aircraft locations and data geographically. Four types of map can be chosen from in the Display Settings dialog: Aviation, Aviation (Dark), Street and Satellite.
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@ -285,7 +285,7 @@ If My Position is not set correctly, the position of aircraft may not be compute
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Aircraft are only placed upon the map when a position can be calculated, which can require several frames to be received.
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* To pan around the map, click the left mouse button and drag. To zoom in or out, use the mouse scroll wheel.
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* Left clicking on an aicraft will highlight the corresponding row in the table for the aircraft and the information box on the map will be coloured orange, rather than blue.
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* Left clicking on an aircraft will highlight the corresponding row in the table for the aircraft and the information box on the map will be coloured orange, rather than blue.
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* Double clicking on an aircraft will set it as the active target and the information box will be coloured green.
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* Left clicking the information box next to an aircraft will reveal more information. It can be closed by clicking it again.
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* Left clicking the information box next to an airport will reveal ATC frequencies for the airport (if the OurAirports database has been downloaded.). This information box can be closed by left clicking on the airport identifier. Double clicking on one of the listed frequencies, will set it as the centre frequency on the selected SDRangel device set (15). The Az/El row gives the azimuth and elevation of the airport from the location set under Preferences > My Position. Double clicking on this row will set the airport as the active target.
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@ -2,7 +2,7 @@
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<h2>Introduction</h2>
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This plugin can be used to demodulate AIS (Automatic Identification System) messages. AIS can be used to track ships and other marine vessels at sea, that are equiped with AIS transponders. It is also used by shore-side infrastructure known as base stations, aids-to-navigation such as buoys and some search and rescue aircraft.
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This plugin can be used to demodulate AIS (Automatic Identification System) messages. AIS can be used to track ships and other marine vessels at sea, that are equipped with AIS transponders. It is also used by shore-side infrastructure known as base stations, aids-to-navigation such as buoys and some search and rescue aircraft.
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AIS is broadcast globally on 25kHz channels at 161.975MHz and 162.025MHz, with other frequencies being used regionally or for special purposes. This demodulator is single channel, so if you wish to decode multiple channels simulatenously, you will need to add one AIS demodulator per frequency. As most AIS messages are on 161.975MHz and 162.025MHz, you can set the center frequency as 162MHz, with a sample rate of 100k+Sa/s, with one AIS demod with an input offset -25kHz and another at +25kHz.
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@ -67,7 +67,7 @@ When clicked, shows additional APT Demodulator settings.
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This includes:
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- Whether the APT demodulator can be controlled by the Satellite Tracker feature. When checked, the image decoder will be enabled and reset on AOS and the satellite pass direction will be used to control image rotation. The decoder will be stopped on LOS.
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- Which satellites the APT demodulator will respond to AOS and LOS indications from the Satellite Tracker. This can be used to simulataneously decode images from multiple satellites, by having multiple instances of the APT Demodulator and setting a unique satellite name for each demodulator.
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- Which satellites the APT demodulator will respond to AOS and LOS indications from the Satellite Tracker. This can be used to simultaneously decode images from multiple satellites, by having multiple instances of the APT Demodulator and setting a unique satellite name for each demodulator.
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- Whether to automatically save images on LOS.
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- Whether a combined image including telemetry should be saved.
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- Whether separate images of channel A and B, without telemetry, should be saved.
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@ -134,7 +134,7 @@ When checked, histogram equalisation is performed, which can enhance the contras
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<h3>20: Overlay precipitation</h3>
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When checked, precipitation is detected from the IR channel and overlayed on both channels using a colour palette.
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When checked, precipitation is detected from the IR channel and overlaid on both channels using a colour palette.
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This option will not work if linear (18) or histogram equalisation (19) has been applied.
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@ -14,7 +14,7 @@ The top and bottom bars of the channel window are described [here](../../../sdrg
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The interface is divided into three collapsable sections:
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The interface is divided into three collapsible sections:
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- A: the RF settings
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- B: the video settings
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@ -57,7 +57,7 @@ Let's take an example with a 625 lines 12 frames/s video signal in a 2500 kS/s b
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<h4>Fractional remainder</h4>
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This is the fractional part of Sb ÷ (l × F). The demodulator can accomodate a non integral value of points per horizontal line. This value represents the fraction of a point needed to complete the real number of points per line.
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This is the fractional part of Sb ÷ (l × F). The demodulator can accommodate a non integral value of points per horizontal line. This value represents the fraction of a point needed to complete the real number of points per line.
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With the previous example this value is 0.333... rounded to 0.33 in the display. Thus a line contains effectively 333.333... points.
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@ -84,7 +84,7 @@ Average total power in dB relative to a ±1.0 amplitude signal generated in
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- **FM1**: this is Frequency Modulation with approximative demodulation algorithm not using atan2
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- **FM2**: this is Frequency Modulation with less approximative demodulation algorithm still not using atan2
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- **FM3**: this is Frequency Modulation with atan2 approximation for phase calculation and then a discrete differentiation is applied
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- **AM**: this is Amplitude Modulation. It can be used for vestigial sideband transmissions in conjunction with the asymetrical filter (11, 12, 13)
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- **AM**: this is Amplitude Modulation. It can be used for vestigial sideband transmissions in conjunction with the asymmetrical filter (11, 12, 13)
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- **USB**: ⚠ USB demodulation synchronous to the carrier (experimental)
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- **LSB**: ⚠ LSB demodulation synchronous to the carrier (experimental)
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@ -104,7 +104,7 @@ Using this button you can adjust the nominal FM deviation as a percentage of the
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<h3>9: AM signal range correction factor</h3>
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This is a factor in % applied to the detected AM signal range. Because of possible overshoots the detected range may be artificially reduced from the original causing possible errors on the different detection lavels on the video signal. This control lets you correct this. Watch the video signal in the scope tab for fine tuning. It affects only AM signals.
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This is a factor in % applied to the detected AM signal range. Because of possible overshoots the detected range may be artificially reduced from the original causing possible errors on the different detection levels on the video signal. This control lets you correct this. Watch the video signal in the scope tab for fine tuning. It affects only AM signals.
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<h3>10: AM signal range offset correction factor</h3>
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@ -116,7 +116,7 @@ Shows counters of received message by type.
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- **TDC**: Transparent Data Channel
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- **IH_**: In House applications
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- **RP_**: Radio Paging
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- **TMC**: Traffic Message Channnel (C.28)
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- **TMC**: Traffic Message Channel (C.28)
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- **EWS**: Emergency Warning System (C.19)
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- **EON**: Enhanced Other Networks information (C.24, 25, 26, 27)
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@ -142,7 +142,7 @@ The "PIN" label lights up if a PIN message is received next is the country code
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The "BAS" indicator lights up if a BAS message is received. Next os the program service name
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<h3>C.14: Trafic Announcement identification</h3>
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<h3>C.14: Traffic Announcement identification</h3>
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The "TA" indicator lights up if a TA message is received
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@ -166,7 +166,7 @@ The "AID" indicator lights up if a AID message is received. Next is the applicat
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The "EWS" indicator lights up if a EWS message is received. Next is the emergency warning system raw data
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<h3>C.20: Curent text line</h3>
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<h3>C.20: Current text line</h3>
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The "TXT" indicator ligths up if a text element is received. Next the current radio text line is displayed.
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@ -107,7 +107,7 @@ This is the Spread Factor parameter of the ChirpChat signal. This is the log2 of
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The LoRa standard specifies 0 (no DE) or 2 (DE active). The ChirpChat DE range is extended to all values between 0 and 4 bits.
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This is the log2 of the number of FFT bins used for one symbol. Extending the numbe of FFT bins per symbol decreases the probabilty to detect the wrong symbol as an adjacent bin. It can also overcome frequency drift on long messages.
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This is the log2 of the number of FFT bins used for one symbol. Extending the numbe of FFT bins per symbol decreases the probability to detect the wrong symbol as an adjacent bin. It can also overcome frequency drift on long messages.
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In practice it is difficult to make correct decodes if only one FFT bin is used to code one symbol (DE=0) therefore it is recommended to use a DE factor of 2 or more. With medium SNR DE=1 can still achieve good results.
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@ -233,9 +233,9 @@ The format of a message line is the following:
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- 1: Timestamp in HH:NN:SS format
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- 2: Sync word. This is the sync word (byte) displayed in hex. Corrsponds to (A.5) in the current message.
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- 3: De-chirped signal level. This is the de-chirped signal level in dB. Corrsponds to (5) in the current message.
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- 4: De-chirped signal to noise ratio. This is the de-chirped signal to noise ratio in dB. Corrsponds to (6) in the current message.
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- 2: Sync word. This is the sync word (byte) displayed in hex. Corresponds to (A.5) in the current message.
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- 3: De-chirped signal level. This is the de-chirped signal level in dB. Corresponds to (5) in the current message.
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- 4: De-chirped signal to noise ratio. This is the de-chirped signal to noise ratio in dB. Corresponds to (6) in the current message.
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- 5: Header FEC status. Corresponds to (A.12) indicator in the current message:
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- **n/a**: unknown or not applicable
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- **err**: unrecoverable error
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@ -272,7 +272,7 @@ This is the spectrum of the de-chirped signal when a ChirpChat signal can be dec
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The frequency span corresponds to the bandwidth of the ChirpChat signal (3). Default FFT size is 2<sup>SF</sup> where SF is the spread factor (7).
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Sequences of successful ChirpChat signal demodulation are separated by blank lines (genreated with a string of high value bins).
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Sequences of successful ChirpChat signal demodulation are separated by blank lines (generated with a string of high value bins).
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Controls are the usual controls of spectrum displays with the following restrictions:
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@ -73,7 +73,7 @@ The current program area display information about the currently playing program
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<h3>Statistics</h3>
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The statitics areas displays statistics generated by the demodulator that may give an indiciation of the quality of the received signal.
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The statistics areas displays statistics generated by the demodulator that may give an indiciation of the quality of the received signal.
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If you are hearing dropouts in audio, try adjusting your antenna in order to improve the reported SNR.
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@ -14,7 +14,7 @@ This plugin can be used to view digital amateur analog television transmissions
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The whole bandwidth available to the channel is used. That is it runs at the device sample rate possibly downsampled by a power of two in the source plugin.
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⚠ Note that DVB-S2 support is experimental. You may need to move some settings back and forth to achieve constellation lock and decode. For exmple change mode or slightly move back and forth center frequency.
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⚠ Note that DVB-S2 support is experimental. You may need to move some settings back and forth to achieve constellation lock and decode. For example change mode or slightly move back and forth center frequency.
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<h2>Interface</h2>
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@ -92,7 +92,7 @@ Depends on the standard.
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- DVB-S: Normally only QPSK and BPSK (later addition) are supported in the standard but amateur radio use has a little bit abused of the standard so PSK6, QAM16, QAM64 and QAM256 are also supported
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- DVB-S2: QPSK, PSK8, APSK16, APSK32, APSK64e (DVB-S2X)
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The constallations are as follows:
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The constellations are as follows:
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|
||||
- BPSK: binary phase shift keying. Symbols are in π/4 and -3π/4 positions.
|
||||
- QPSK: quadrature phase shift keying. Symbols are in π/4, 3π/4, -3π/4 and -π/4 positions.
|
||||
|
|
|
|||
|
|
@ -114,7 +114,7 @@ The level corresponds to the channel power above which the squelch gate opens.
|
|||
|
||||
<h4>A.9: Squelch time gate</h4>
|
||||
|
||||
Number of milliseconds following squelch gate opening after which the signal is declared open. There is a delay line for the samples so samples applied to the decoder actually start at the beginning of the gate period not loosing any samples. 0 means squelch is declared open with no delay.
|
||||
Number of milliseconds following squelch gate opening after which the signal is declared open. There is a delay line for the samples so samples applied to the decoder actually start at the beginning of the gate period not losing any samples. 0 means squelch is declared open with no delay.
|
||||
|
||||
<h4>A.10: High-pass filter for audio</h4>
|
||||
|
||||
|
|
|
|||
|
|
@ -22,7 +22,7 @@ Average total power in dB relative to a +/- 1.0 amplitude signal received in the
|
|||
|
||||
<h3>3: Manual re-synchronization</h3>
|
||||
|
||||
This works only for the presently disabled 700D mode. Use this push button to force loosing and re-acquiring synchronisation.
|
||||
This works only for the presently disabled 700D mode. Use this push button to force losing and re-acquiring synchronisation.
|
||||
|
||||
<h3>4: FreeDV mode</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -86,4 +86,4 @@ The received packets table displays the contents of the packets that have been r
|
|||
* Type - The AX.25 frame type.
|
||||
* PID - Protocol Identifier.
|
||||
* Data (ASCII) - The AX.25 information field displayed as ASCII.
|
||||
* Data (Hex) - The AX.25 information field displayed as hexidecimal.
|
||||
* Data (Hex) - The AX.25 information field displayed as hexadecimal.
|
||||
|
|
|
|||
|
|
@ -108,7 +108,7 @@ Values are expressed in kHz and step is 100 Hz.
|
|||
|
||||
<h4>11.1: Volume</h4>
|
||||
|
||||
This is the volume of the audio signal in dB from 0 (no gain) to 40 (10000). It can be varied continuously in 1 dB steps using the dial button. When AGC is engaged it is recommended to set a low value in dB not exceeding 3 db (gain 2). When AGC is not engaged the volume entirely depends on the RF power and can vary in large proportions. Hence setting the value in dB is more convenient to accomodate large differences.
|
||||
This is the volume of the audio signal in dB from 0 (no gain) to 40 (10000). It can be varied continuously in 1 dB steps using the dial button. When AGC is engaged it is recommended to set a low value in dB not exceeding 3 db (gain 2). When AGC is not engaged the volume entirely depends on the RF power and can vary in large proportions. Hence setting the value in dB is more convenient to accommodate large differences.
|
||||
|
||||
<h4>11.2: AGC toggle</h4>
|
||||
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ This plugin can be used to demodulate VOR (VHF omnidirectional range) navaids (n
|
|||
|
||||
VORs transmit two 30Hz signals, one AM at the VOR center frequency and one FM on a 9960Hz sub-carrier. The FM reference signal's phase is set so 0 degrees corresponds to magnetic north from the VOR (Some VORs at high latitudes use true North). The phase of the AM variable signal is such that the phase difference to the reference signal corresponds to the bearing from the VOR to the receiver. For example, if a receiver is North from the VOR, the AM and FM 30Hz signals will be received in phase. If a receiver is East from the VOR, the phase difference will be 90 degrees.
|
||||
|
||||
VORs also transmit a Morse code ident signal at a 1020Hz offset. This is a 2 or 3 character identifier used to identify the VOR, as multiple VORs can be transmitted on the same frequency. For example, the VOR at London Heathrow transmits .-.. --- -. for LON. The Morse code ident is typically transmitted at 10 seconds intervals at between 7 and 10 wpm. VORs that are under maintainance may transmit TST.
|
||||
VORs also transmit a Morse code ident signal at a 1020Hz offset. This is a 2 or 3 character identifier used to identify the VOR, as multiple VORs can be transmitted on the same frequency. For example, the VOR at London Heathrow transmits .-.. --- -. for LON. The Morse code ident is typically transmitted at 10 seconds intervals at between 7 and 10 wpm. VORs that are under maintenance may transmit TST.
|
||||
|
||||
Some VORs also transmit an AM voice identification or information signal between 300-3kHz.
|
||||
|
||||
|
|
@ -44,7 +44,7 @@ If you right click on it it will open a dialog to select the audio output device
|
|||
|
||||
<h3>5: Morse ident threshold</h3>
|
||||
|
||||
This is the Morse code ident threshold, expressed as a linear signal to noise (SNR) ratio. This is effectively the signal level required for the Morse demodulator to detect a dot or dash. Setting this to low values will allow the Morse demodulator to detect weak signals, but it also increases the likelyhood that noise will incorrectly be interpreted as a signal, resulting in invalid idents being reported.
|
||||
This is the Morse code ident threshold, expressed as a linear signal to noise (SNR) ratio. This is effectively the signal level required for the Morse demodulator to detect a dot or dash. Setting this to low values will allow the Morse demodulator to detect weak signals, but it also increases the likelihood that noise will incorrectly be interpreted as a signal, resulting in invalid idents being reported.
|
||||
|
||||
<h3>6: Squelch threshold</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ This plugin can be used to demodulate VOR (VHF omnidirectional range) navaids (n
|
|||
|
||||
VORs transmit two 30Hz signals, one AM at the VOR center frequency and one FM on a 9960Hz sub-carrier. The FM reference signal's phase is set so 0 degrees corresponds to magnetic north from the VOR (Some VORs at high latitudes use true North). The phase of the AM variable signal is such that the phase difference to the reference signal corresponds to the bearing from the VOR to the receiver. For example, if a receiver is North from the VOR, the AM and FM 30Hz signals will be received in phase. If a receiver is East from the VOR, the phase difference will be 90 degrees.
|
||||
|
||||
VORs also transmit a Morse code ident signal at a 1020Hz offset. This is a 2 or 3 character identifier used to identify the VOR, as multiple VORs can be transmitted on the same frequency. For example, the VOR at London Heathrow transmits .-.. --- -. for LON. The Morse code ident is typically transmitted at 10 seconds intervals at between 7 and 10 wpm. VORs that are under maintainance may transmit TST.
|
||||
VORs also transmit a Morse code ident signal at a 1020Hz offset. This is a 2 or 3 character identifier used to identify the VOR, as multiple VORs can be transmitted on the same frequency. For example, the VOR at London Heathrow transmits .-.. --- -. for LON. The Morse code ident is typically transmitted at 10 seconds intervals at between 7 and 10 wpm. VORs that are under maintenance may transmit TST.
|
||||
|
||||
Some VORs also transmit an AM voice identification or information signal between 300-3kHz.
|
||||
|
||||
|
|
@ -46,7 +46,7 @@ When checked, radials on the map will drawn adjusted for magnetic declination. F
|
|||
|
||||
<h3>6: Morse ident threshold</h3>
|
||||
|
||||
This is the Morse code ident threshold, expressed as a linear signal to noise (SNR) ratio. This is effectively the signal level required for the Morse demodulator to detect a dot or dash. Setting this to low values will allow the Morse demodulator to detect weak signals, but it also increases the likelyhood that noise will incorrectly be interpreted as a signal, resulting in invalid idents being reported.
|
||||
This is the Morse code ident threshold, expressed as a linear signal to noise (SNR) ratio. This is effectively the signal level required for the Morse demodulator to detect a dot or dash. Setting this to low values will allow the Morse demodulator to detect weak signals, but it also increases the likelihood that noise will incorrectly be interpreted as a signal, resulting in invalid idents being reported.
|
||||
|
||||
<h3>7: Squelch threshold</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -2,11 +2,11 @@
|
|||
|
||||
<h2>Introduction</h2>
|
||||
|
||||
Use this plugin to record its channel IQ data in [sdriq](../../samplesource/fileinput/readme.md#introduction) or signed 16-bit PCM `.wav` format. The baseband sample rate can be decimated by a factor of two and its center shifted to accomodate different requirements than recording the full baseband. More than one such plugin can be used in the same baseband to record different parts of the baseband spectrum. Of course in this case file output collision should be avoided.
|
||||
Use this plugin to record its channel IQ data in [sdriq](../../samplesource/fileinput/readme.md#introduction) or signed 16-bit PCM `.wav` format. The baseband sample rate can be decimated by a factor of two and its center shifted to accommodate different requirements than recording the full baseband. More than one such plugin can be used in the same baseband to record different parts of the baseband spectrum. Of course in this case file output collision should be avoided.
|
||||
|
||||
Such files can be read in SDRangel using the [File input plugin](../../samplesource/fileinput/readme.md).
|
||||
|
||||
Each recording is written in a new file with the starting timestamp before the `.sdriq` extension in `yyyy-MM-ddTHH_mm_ss_zzz` format. It keeps the first dot limted groups of the filename before the `.sdriq` or `.wav` extension if there are two such groups or before the two last groups if there are more than two groups. Examples:
|
||||
Each recording is written in a new file with the starting timestamp before the `.sdriq` extension in `yyyy-MM-ddTHH_mm_ss_zzz` format. It keeps the first dot limited groups of the filename before the `.sdriq` or `.wav` extension if there are two such groups or before the two last groups if there are more than two groups. Examples:
|
||||
|
||||
- Given file name: `test.sdriq` then a recording file will be like: `test.2020-08-05T21_39_07_974.sdriq`
|
||||
- Given file name: `test.2020-08-05T20_36_15_974.sdriq` then a recording file will be like (with timestamp updated): `test.2020-08-05T21_41_21_173.sdriq`
|
||||
|
|
@ -34,7 +34,7 @@ Use this control to decimate the baseband samples by a power of two. Consequentl
|
|||
|
||||
<h3>3: Channel (sink) sample rate</h3>
|
||||
|
||||
Shows the channel sink sample rate in kS/s. The recod capture is effectively recorded at this rate.
|
||||
Shows the channel sink sample rate in kS/s. The record capture is effectively recorded at this rate.
|
||||
|
||||
<h3>4: Number of recordings in session</h3>
|
||||
|
||||
|
|
@ -83,13 +83,13 @@ This applies to spectrum squelch triggered recording only. This is the number of
|
|||
|
||||
This is useful if you want to record a bunch of transient bursts or just make sure that the recording does not stop too abruptly.
|
||||
|
||||
<h3>12: Enable/disble spectrum squelch triggered recording</h3>
|
||||
<h3>12: Enable/disable spectrum squelch triggered recording</h3>
|
||||
|
||||
Use this button to effectively apply spectrum squelch to recording. In this mode recording on and off will be under the control of the squelch system. Thus when active the normal record button (13) is disabled. However its color changes to reflect the recording status as described next.
|
||||
|
||||
<h3>13: Record button</h3>
|
||||
|
||||
Use this button to start/stop recording unconditionnaly. Note that start/stop recording is opening/closing a new file in the same session. Until the file is changed with (14) the same file root will be used until the device is stopped or channel plugin is dismissed.
|
||||
Use this button to start/stop recording unconditionally. Note that start/stop recording is opening/closing a new file in the same session. Until the file is changed with (14) the same file root will be used until the device is stopped or channel plugin is dismissed.
|
||||
|
||||
The button turns red if recording is active.
|
||||
|
||||
|
|
|
|||
|
|
@ -56,7 +56,7 @@ It is also used to signal PLL lock with a green background. Note that the lock s
|
|||
|
||||
<h4>7.2 Alpha factor of frequency error EMA</h4>
|
||||
|
||||
The frequency error is passed throug an Exponential Moving Average (EMA) stage to smooth it out. This is the decrease factor or alpha in the formula:
|
||||
The frequency error is passed through an Exponential Moving Average (EMA) stage to smooth it out. This is the decrease factor or alpha in the formula:
|
||||
|
||||
S<sub>i</sub> = α x<sub>i</sub> + S<sub>i-1</sub>
|
||||
|
||||
|
|
|
|||
|
|
@ -116,7 +116,7 @@ Plots the results (NF, T or Y) vs frequency as a line chart.
|
|||
|
||||
<h3>16: Open reference data</h3>
|
||||
|
||||
A set of reference data in .csv format can be loaded for comparisons with the measurement results. The first column of the .csv file should contain frequency and the second the noise figure in dB. The first row should contain a header (E.g. "Frequency,NF" allthough the exact text is ignored).
|
||||
A set of reference data in .csv format can be loaded for comparisons with the measurement results. The first column of the .csv file should contain frequency and the second the noise figure in dB. The first row should contain a header (E.g. "Frequency,NF" although the exact text is ignored).
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -108,6 +108,6 @@ The signals available include:
|
|||
- GotM - Indicates when a marker is detected. For WWVB only.
|
||||
|
||||
As an example of how this can be used, we can plot the MagSq as X and the calculated TH as Y, which can help to set the value of the
|
||||
TH setting to an approproate level.
|
||||
TH setting to an appropriate level.
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -2,9 +2,9 @@
|
|||
|
||||
<h2>Introduction</h2>
|
||||
|
||||
Use this plugin to record its channel IQ data in [SigMF](https://github.com/gnuradio/SigMF/blob/master/sigmf-spec.md) format. The baseband sample rate can be decimated by a factor of two and its center shifted to accomodate different requirements than recording the full baseband. More than one such plugin can be used in the same baseband to record different parts of the baseband spectrum. Of course in this case file output collision should be avoided.
|
||||
Use this plugin to record its channel IQ data in [SigMF](https://github.com/gnuradio/SigMF/blob/master/sigmf-spec.md) format. The baseband sample rate can be decimated by a factor of two and its center shifted to accommodate different requirements than recording the full baseband. More than one such plugin can be used in the same baseband to record different parts of the baseband spectrum. Of course in this case file output collision should be avoided.
|
||||
|
||||
Such files can be read in SDRangel using the [SigMF file input plugin](../../samplesource/sigmffileinput/readme.md). This plugin will use extensions to the basic SigMF specification that are specific to SDRangel. However any other software if correctly implemented should ignore these extensions and still be able to read the file possibily with a loss in functionnality.
|
||||
Such files can be read in SDRangel using the [SigMF file input plugin](../../samplesource/sigmffileinput/readme.md). This plugin will use extensions to the basic SigMF specification that are specific to SDRangel. However any other software if correctly implemented should ignore these extensions and still be able to read the file possibly with a loss in functionality.
|
||||
|
||||
As per SigMF specifications two files are created in fact.
|
||||
- One with `.sigmf-meta` extension contains meta data and details to find the different captures in the data file blob. It is written in JSON format and is human readable. You can refer to SigMF documentation in the link at top to read about the details.
|
||||
|
|
@ -35,7 +35,7 @@ Use this control to decimate the baseband samples by a power of two. Consequentl
|
|||
|
||||
<h3>3: Channel (sink) sample rate</h3>
|
||||
|
||||
Shows the channel sink sample rate in kS/s. The recod capture is effectively recorded at this rate.
|
||||
Shows the channel sink sample rate in kS/s. The record capture is effectively recorded at this rate.
|
||||
|
||||
<h3>4: Number of record captures</h3>
|
||||
|
||||
|
|
@ -84,7 +84,7 @@ This applies to spectrum squelch triggered recording only. This is the number of
|
|||
|
||||
This is useful if you want to record a bunch of transient bursts or just make sure that the recording does not stop too abruptly.
|
||||
|
||||
<h3>12: Enable/disble spectrum squelch triggered recording</h3>
|
||||
<h3>12: Enable/disable spectrum squelch triggered recording</h3>
|
||||
|
||||
Use this button to effectively apply spectrum squelch to recording. In this mode recording on and off will be under the control of the squelch system. Thus when active the normal record button (13) is disabled. However its color changes to reflect the recording status as described next.
|
||||
|
||||
|
|
|
|||
|
|
@ -70,7 +70,7 @@ When pressed, the message field will be set to a hex encoded string that represe
|
|||
|
||||
Select a message type:
|
||||
|
||||
- Scheduled postion report
|
||||
- Scheduled position report
|
||||
- Assigned position report
|
||||
- Special position report
|
||||
- Base station report
|
||||
|
|
@ -85,11 +85,11 @@ For position reports, specify the status of the vessel.
|
|||
|
||||
<h3>17: Latitude</h3>
|
||||
|
||||
Specifiy the latitude of the vessel or station in decimal degrees, North positive.
|
||||
Specify the latitude of the vessel or station in decimal degrees, North positive.
|
||||
|
||||
<h3>18: Longitude</h3>
|
||||
|
||||
Specifiy the longitude of the vessel or station in decimal degrees, East positive.
|
||||
Specify the longitude of the vessel or station in decimal degrees, East positive.
|
||||
|
||||
<h3>19: Insert position</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -267,7 +267,7 @@ This is the device number used by OpenCV which on Linux systems correspond to th
|
|||
|
||||
<h2>16. Camera image size</h2>
|
||||
|
||||
This is the width x height camera iamge size in pixels
|
||||
This is the width x height camera image size in pixels
|
||||
|
||||
<h2>17. System camera FPS</h2>
|
||||
|
||||
|
|
|
|||
|
|
@ -81,7 +81,7 @@ This is the Spread Factor parameter of the ChirpChat signal. This is the log2 of
|
|||
|
||||
The LoRa standard specifies 0 (no DE) or 2 (DE active). The ChirpChat range is extended to all values between 0 and 4 bits.
|
||||
|
||||
This is the log2 of the number of frequency shifts separating two consecutive shifts that represent a symbol. On the receiving side this decreases the probabilty to detect the wrong symbol as an adjacent FFT bin. It can also overcome frequency drift on long messages.
|
||||
This is the log2 of the number of frequency shifts separating two consecutive shifts that represent a symbol. On the receiving side this decreases the probability to detect the wrong symbol as an adjacent FFT bin. It can also overcome frequency drift on long messages.
|
||||
|
||||
In practice it is difficult on the Rx side to make correct decodes if only one FFT bin is used to code one symbol (DE=0). It is therefore recommended to use a factor of 1 or more.
|
||||
|
||||
|
|
|
|||
|
|
@ -62,7 +62,7 @@ Check this button to repeated transmit a packet. Right click to open the dialog
|
|||
|
||||
<h3>13: Insert position</h3>
|
||||
|
||||
Inserts position as APRS formatted latitude and longitude in to the current cursor position within the data field. Lattitude and longitude can be specified under Preferences > My position.
|
||||
Inserts position as APRS formatted latitude and longitude in to the current cursor position within the data field. Latitude and longitude can be specified under Preferences > My position.
|
||||
|
||||
<h3>14: To</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -55,7 +55,7 @@ A half wave dipole in free space with total length being half the wavelength of
|
|||
To eliminate this reactance, the dipole should be shortened. The amount it needs to be shortened by depends upon the ratio of the diameter of the dipole to wavelength,
|
||||
with factors ranging from 0.98 for a thin dipole (0.00001 wavelengths) to 0.94 (thickness of 0.008 wavelengths) with a commonly used value of 0.95.
|
||||
|
||||
The calculator doesn't use an analytical formula for this, as the reactance also depends on the enviroment (such as distance to ground), so some experimentation
|
||||
The calculator doesn't use an analytical formula for this, as the reactance also depends on the environment (such as distance to ground), so some experimentation
|
||||
is needed in finding the true value.
|
||||
|
||||
<h2>Parabolic Dish Calculator</h2>
|
||||
|
|
|
|||
|
|
@ -28,7 +28,7 @@ Pressing this button shows the APRS Settings Dialog. This dialog allows you to e
|
|||
* A serverside filter, that specifies which packets should be forwarded from the internet to SDRangel. See http://www.aprs-is.net/javAPRSFilter.aspx
|
||||
m/50 will send you packets within 50 km of the last known position of the station corresponding to the callsign used to log in with.
|
||||
If you do not have a corresponding station, you can specify a location by passing a latitude and longitude. E.g: r/lat/lon/50
|
||||
* The units in which altitudes are displyed (Feet or metres).
|
||||
* The units in which altitudes are displayed (Feet or metres).
|
||||
* The units in which object speeds are displayed (Knots, MPH or KPH).
|
||||
* The units in which temperature is displayed (Fahrenheit or Celsius).
|
||||
* The units in which rainfall is displayed (Hundredths of an inch or millimetres).
|
||||
|
|
|
|||
|
|
@ -30,7 +30,7 @@ The value to the right of the target elevation, is the current elevation read fr
|
|||
<h3>4: Track</h3>
|
||||
|
||||
When checked, the target azimuth and elevation will be controlled by the Channel or Feature Source (5).
|
||||
For example, this allows an aircraft to be tracked, by setting the Source to the ADS-B Demodulator plugin, or the Moon to be tracked by settng Source to the Star Tracker plugin.
|
||||
For example, this allows an aircraft to be tracked, by setting the Source to the ADS-B Demodulator plugin, or the Moon to be tracked by setting Source to the Star Tracker plugin.
|
||||
|
||||
<h3>5: Source</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -40,7 +40,7 @@ Specify the interval in seconds between packet transmissions.
|
|||
|
||||
<h3>6: Packet</h3>
|
||||
|
||||
Specify the contents of the packet to transmit and expect to be received. Data should be entered in hexidecimal bytes (E.g: 00 11 22 33 44).
|
||||
Specify the contents of the packet to transmit and expect to be received. Data should be entered in hexadecimal bytes (E.g: 00 11 22 33 44).
|
||||
|
||||
The exact format required will depend on the underlying protocol being used. For AX.25 using the Packet modulator, LoRo using the ChirpChat modulator, AIS and 802.15.4, it is not necessary to include the trailing CRC, as this is appended automatically by the SDRangel modulators.
|
||||
|
||||
|
|
@ -62,7 +62,7 @@ This:
|
|||
* Encodes MYCALL as a 7-byte AX.25 source address.
|
||||
* Inserts hex value 0x03.
|
||||
* Inserts hex value 0xf0.
|
||||
* Inserts a 32-bit packet identifer.
|
||||
* Inserts a 32-bit packet identifier.
|
||||
* Inserts the 5 bytes of the ASCII encoding of Hello.
|
||||
* Inserts a random payload of between 0 and 100 bytes.
|
||||
|
||||
|
|
|
|||
|
|
@ -66,10 +66,10 @@ Use this combo to select which Rx device is controlled
|
|||
|
||||
Use this combo to select which Tx device is controlled
|
||||
|
||||
<h3>8: Transistion delay from Rx to Tx</h3>
|
||||
<h3>8: Transition delay from Rx to Tx</h3>
|
||||
|
||||
Value in milliseconds between Rx stop and Tx start
|
||||
|
||||
<h3>9: Transistion delay from Tx to Rx</h3>
|
||||
<h3>9: Transition delay from Tx to Rx</h3>
|
||||
|
||||
Value in milliseconds between Tx stop and Rx start
|
||||
|
|
|
|||
|
|
@ -153,7 +153,7 @@ For all other target settings, this sisplays the calculated galactic longitude t
|
|||
|
||||
<h3>21: b - Galactic Latitude</h3>
|
||||
|
||||
When the target is set to Custom l/b, you specify the galactic lattitude (angle in degrees) of the target object.
|
||||
When the target is set to Custom l/b, you specify the galactic latitude (angle in degrees) of the target object.
|
||||
|
||||
For all other target settings, displays the calculated galactic latitude to the object.
|
||||
|
||||
|
|
@ -208,7 +208,7 @@ This can be useful to help identify spiral arms in hydrogen line observations.
|
|||
|
||||
|
||||
|
||||
Two images of the Milky Way are availble: a purely graphical image and one annotated with the names of the major spiral arms and a grid with distance and galactic longitude.
|
||||
Two images of the Milky Way are available: a purely graphical image and one annotated with the names of the major spiral arms and a grid with distance and galactic longitude.
|
||||
|
||||
|
||||
|
||||
|
|
@ -298,7 +298,7 @@ To convert FITS images between projections, use Montage:
|
|||
|
||||
sudo apg-get install montage wcslib-tools
|
||||
|
||||
Create header for desired output image. E.g. For galatic coordinates, 0.3deg per pixel, covering 360/180 degrees:
|
||||
Create header for desired output image. E.g. For galactic coordinates, 0.3deg per pixel, covering 360/180 degrees:
|
||||
|
||||
mHdr -c ga -p 1200 -h 180.0 "0.0 +0.0" 360 header.hdr
|
||||
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@ When checked, radials on the map will drawn adjusted for magnetic declination. F
|
|||
|
||||
<h3>4: Round robin turn time</h3>
|
||||
|
||||
Available VOR demodulator channels are allocated to service the selected VORs on the map and displayed in the VOR table (B). There could be less available channels than the number of VORs to service in which case the channel(s) of the same device can be used to service VORs in turn in a round robin fashion. This sets the time in seconds dedicated to each turn. More details on channels allocation agorithm is given in (7).
|
||||
Available VOR demodulator channels are allocated to service the selected VORs on the map and displayed in the VOR table (B). There could be less available channels than the number of VORs to service in which case the channel(s) of the same device can be used to service VORs in turn in a round robin fashion. This sets the time in seconds dedicated to each turn. More details on channels allocation algorithm is given in (7).
|
||||
|
||||
<h3>5: Round robin turn time progress</h3>
|
||||
|
||||
|
|
@ -51,7 +51,7 @@ This combo is not used to select anything but just to show the VOR demodulators
|
|||
|
||||
The display is `Rn:m` where `n` is the device set index and `m` the channel index in the device set.
|
||||
|
||||
Channels may be used in round robin turns if their number is not enough to cover all VORs. The allocation algorithm will use devices with multiple channels first in order to accomodate several VORs with just one device. The baseband must be large enough to fit the VORs simultaneously. If there are VORs remaining more turns are added with just one channel being used. It is always possible to service any number of VORs with a single channel.
|
||||
Channels may be used in round robin turns if their number is not enough to cover all VORs. The allocation algorithm will use devices with multiple channels first in order to accommodate several VORs with just one device. The baseband must be large enough to fit the VORs simultaneously. If there are VORs remaining more turns are added with just one channel being used. It is always possible to service any number of VORs with a single channel.
|
||||
|
||||
When there is more than one turn for a device valid radial directions are averaged and the resulting average is used during the round robin loop. Averaging also takes place for reference and variable signal levels.
|
||||
|
||||
|
|
|
|||
|
|
@ -8,7 +8,7 @@ Forward Error Correction with a Cauchy MDS block erasure codec is used to preven
|
|||
|
||||
The remote SDRangel instance to which the data stream is sent is controlled via its REST API using a separate control software for example [SDRangelcli](https://github.com/f4exb/sdrangelcli)
|
||||
|
||||
The sample size used in the I/Q stream is the Rx sample size of the local instance. Possible conversion takes place in the remote Remote source channel plugin to match the Rx sample size of the remote instance. Best performace is obtained when both instances use the same sample size.
|
||||
The sample size used in the I/Q stream is the Rx sample size of the local instance. Possible conversion takes place in the remote Remote source channel plugin to match the Rx sample size of the remote instance. Best performance is obtained when both instances use the same sample size.
|
||||
|
||||
<h2>Build</h2>
|
||||
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@ Device start / stop button.
|
|||
|
||||
<h3>2A: Sample rate</h3>
|
||||
|
||||
This is the sample rate at which IQ samples are transfered from SDRangel to the device, in kS/s (k) or MS/s (M).
|
||||
This is the sample rate at which IQ samples are transferred from SDRangel to the device, in kS/s (k) or MS/s (M).
|
||||
|
||||
<h3>2B: Stream sample rate</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -98,7 +98,7 @@ Use this checkbox to activate the special RTLSDR direct sampling. This can be us
|
|||
|
||||
<h3>11: Offset tuning</h3>
|
||||
|
||||
This controls the offset tuning. Some RF frontends like the obsolete E4000 implement this feature and it can seriously reduce the central DC peak without digital correction. This does not work for the R820T and R820T2 that are very popular on which it will produce no effect. However these RF frontends exhibit a central DC peak much smaller than on the E4000 and can be easly corrected digitally via control (3).
|
||||
This controls the offset tuning. Some RF frontends like the obsolete E4000 implement this feature and it can seriously reduce the central DC peak without digital correction. This does not work for the R820T and R820T2 that are very popular on which it will produce no effect. However these RF frontends exhibit a central DC peak much smaller than on the E4000 and can be easily corrected digitally via control (3).
|
||||
|
||||
<h3>12: RF bandwidth</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ Device start / stop button.
|
|||
|
||||
<h3>2: Sample rate</h3>
|
||||
|
||||
This is the sample rate at which IQ samples are transfered from the device to SDRangel, in kS/s (k).
|
||||
This is the sample rate at which IQ samples are transferred from the device to SDRangel, in kS/s (k).
|
||||
|
||||
<h3>3: Center frequency</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@ Device start / stop button.
|
|||
|
||||
<h3>2A: Sample rate</h3>
|
||||
|
||||
This is the sample rate at which IQ samples are transfered the device to SDRangel, in kS/s (k) or MS/s (M).
|
||||
This is the sample rate at which IQ samples are transferred the device to SDRangel, in kS/s (k) or MS/s (M).
|
||||
|
||||
<h3>2B: Stream sample rate</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -34,7 +34,7 @@ Normal sequence of operations:
|
|||
|
||||
<h2>ptt_active.py</h2>
|
||||
|
||||
PTT (Push To Talk) actively listening system. For a pair of given device set indexes it actively listens to start and stop commands on the corresponding devices to swich over to the other
|
||||
PTT (Push To Talk) actively listening system. For a pair of given device set indexes it actively listens to start and stop commands on the corresponding devices to switch over to the other
|
||||
|
||||
Options are:
|
||||
|
||||
|
|
@ -276,7 +276,7 @@ This file drives how channels in the connected SDRangel instance are managed.
|
|||
{ // Channel information - at least one required
|
||||
"index": 0, // Index of channel in deviceset - required
|
||||
"fc_pos": "usb", // Center frequency position in hotspot - optional: default center
|
||||
// lsb: center frequency at end of hotspot (higer frequency)
|
||||
// lsb: center frequency at end of hotspot (higher frequency)
|
||||
// usb: center frequency at beginning of hotspot (lower frequency)
|
||||
// canter: center frequency at mid-point of hotspot (center frequency)
|
||||
"fc_shift": -300 // Center frequency constant shift from computed frequency - optional
|
||||
|
|
@ -295,7 +295,7 @@ This file drives how channels in the connected SDRangel instance are managed.
|
|||
|
||||
Refer to supervisord documentation.
|
||||
|
||||
Esample of `superscanner.conf` file to put in your `/etc//etc/supervisor/conf.d/` folder (add it in the `[incude]` section of `/etc/supervisor/supervisord.conf`). Environment variable `PYTHONUNBUFFERED=1` is important for the log tail to work correctly.
|
||||
Esample of `superscanner.conf` file to put in your `/etc//etc/supervisor/conf.d/` folder (add it in the `[include]` section of `/etc/supervisor/supervisord.conf`). Environment variable `PYTHONUNBUFFERED=1` is important for the log tail to work correctly.
|
||||
|
||||
```
|
||||
[program:superscanner]
|
||||
|
|
|
|||
|
|
@ -16,7 +16,7 @@ The format is:
|
|||
- Semicolon separator
|
||||
- Channel index in device set
|
||||
|
||||
Aditionally when the channel is a single stream channel and attached to a MIMO device:
|
||||
Additionally when the channel is a single stream channel and attached to a MIMO device:
|
||||
|
||||
- Dot separator
|
||||
- Stream index
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ Configuraitons stores the complete setup of a SDRangel instance:
|
|||
- Device sets
|
||||
- Features
|
||||
|
||||
It also stores the geometry of all windows and workspaces so that the entire aspect of a configuraiton of the instance can be saved and retrieved. A default configuration is saved at program exit and retrieved at the next prograp start. Use the `--scratch` command line option to skip the retrieval of the default configuration and start with an empty setup.
|
||||
It also stores the geometry of all windows and workspaces so that the entire aspect of a configuration of the instance can be saved and retrieved. A default configuration is saved at program exit and retrieved at the next prograp start. Use the `--scratch` command line option to skip the retrieval of the default configuration and start with an empty setup.
|
||||
|
||||
|
||||
|
||||
|
|
@ -38,7 +38,7 @@ Delete selected configuration or selected group
|
|||
|
||||
<h3>8: Load configuration</h3>
|
||||
|
||||
Load configuraiton in the current instance. All components and workspaces are deleted first.
|
||||
Load configuration in the current instance. All components and workspaces are deleted first.
|
||||
|
||||
<h3>9: Close dialog</h3>
|
||||
|
||||
|
|
|
|||
|
|
@ -82,7 +82,7 @@ Validates the data (saves it in the channel marker object) and exits the dialog
|
|||
|
||||
<h3>A.3: Change device</h3>
|
||||
|
||||
Opens a dialog that lets you choose a different devuce
|
||||
Opens a dialog that lets you choose a different device
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -22,7 +22,7 @@ Use this button to import the selected device in the panel above (1) to the pane
|
|||
|
||||
<h2>3 Non discoverable device hardware ID</h2>
|
||||
|
||||
Some devices cannot be discovered automatically. This is the case for networked devices in particular the PlutoSDR. In conjuctions with (4) and (5) you can define devices that can be added to the list of available devices for selection. Note that you will need to restart SDRangel for this to be effective.
|
||||
Some devices cannot be discovered automatically. This is the case for networked devices in particular the PlutoSDR. In conjunctions with (4) and (5) you can define devices that can be added to the list of available devices for selection. Note that you will need to restart SDRangel for this to be effective.
|
||||
|
||||
Once the device is defined user arguments like the IP address can be specified for it.
|
||||
|
||||
|
|
|
|||
|
|
@ -21,7 +21,7 @@ It comprises the spectrum display itself and the controls generally placed at th
|
|||
|
||||
<h3>Status line</h3>
|
||||
|
||||
|
||||
|
||||
|
||||
A status line is displayed at the left of the top margin. It displays the following items from left to right:
|
||||
|
||||
|
|
@ -231,7 +231,7 @@ Thus if the FPS capping is 20 (50 ms) the refresh period will be in fact 107 ms
|
|||
|
||||
<h4>B.3.5: Logarithmic/linear scale</h4>
|
||||
|
||||
Use this toggle button to switch between spectrum logarithmic and linear scale display. The face of the button will change to represent either a logaritmic or linear curve.
|
||||
Use this toggle button to switch between spectrum logarithmic and linear scale display. The face of the button will change to represent either a logarithmic or linear curve.
|
||||
|
||||
When in linear mode the range control (B.3.3) has no effect because the actual range is between 0 and the reference level. The reference level in dB (B.3.2) still applies but is translated to a linear value e.g -40 dB is 1e-4. In linear mode the scale numbers are formatted using scientific notation so that they always occupy the same space.
|
||||
|
||||
|
|
|
|||
|
|
@ -90,7 +90,7 @@ The value in (9) is added (in dB) to all calibrated power values if "Cor" is sel
|
|||
|
||||
<h3>12. Export calibrated points to .csv</h3>
|
||||
|
||||
Export the calibrated points to a .csv file. Colums are:
|
||||
Export the calibrated points to a .csv file. Columns are:
|
||||
|
||||
- **Frequency**: frequency in Hz of the point
|
||||
- **Relative**: relative power in dB
|
||||
|
|
|
|||
|
|
@ -135,7 +135,7 @@ Type in the text of the marker to be displayed when it is selected (see "Annotat
|
|||
|
||||
<h3>5. Export markers to .csv file</h3>
|
||||
|
||||
Export the markers to a .csv file. Colums are
|
||||
Export the markers to a .csv file. Columns are
|
||||
- **Start**: start frequency in Hz
|
||||
- **Width**: width in Hz
|
||||
- **Text**: marker text when selected
|
||||
|
|
@ -175,7 +175,7 @@ Sort markers by increasing starting frequency
|
|||
|
||||
<h3>12. Show start/center frequency</h3>
|
||||
|
||||
The start of center frequency in Hz is displayed when the center or start inpu frequency (8) is selected respectively.
|
||||
The start of center frequency in Hz is displayed when the center or start input frequency (8) is selected respectively.
|
||||
|
||||
<h3>13. Show stop frequency</h3>
|
||||
|
||||
|
|
|
|||
Ładowanie…
Reference in New Issue