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Strona: Channel Rx plugins
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Audio management Channel MIMO plugins Channel Rx plugins Channel Tx plugins Channel plugins with special conditions Compile from source in Linux Compile in MacOS Compile in Windows Decoding Morse code from audio Developers notes Device MIMO plugins (Multiple In Multiple Out) Feature plugins Hardware requirements High DPI displays History and major releases Home Networking audio Note on SDRPlay RSP1 on Linux Notes on Pulseaudio setup Plugins for special devices Quick start Legacy (v6) Quick start Reverse API SDRPlay and SoapySDR (obsolete) SDRangel pictures and videos SDRangel server with supervisor in Arch Linux SDRangel server with supervisor in OpenSUSE SDRangel server with supervisor in Raspbian SDRangel server with supervisor in Ubuntu SDRangel server Sample sink plugins (Tx devices) Sample source plugins (Rx devices) Soapy Remote Text to speech WSJT X Web (http) REST API
55 Channel Rx plugins
srcejon edytuje tę stronę 2024-01-27 09:31:21 +00:00
Spis treści

Channel Rx plugins

These plugins live on the reception (Rx) side. Plugins can be used as a source of audio (media in general) or display (i.e. analyzer). They work on the data received in a "channel" that is a piece of spectrum carved into the spectrum received from the input plugin.

One nice thing about this approach is that any number of different channels can be accommodated within the reception spectrum. Of course your computer hardware will set the limit.

The plugins documented here are:

Channel analyzer plugin

This plugin has no audio output and is used to visualize and analyze signals. It has a spectrum and scope combined display the spectrum and the scope sharing the same trigger which helps in visualizing the spectrum of pulsed signals. The user interface is described here

Note that the old Channel Analyzer plugin was decommissioned in favor of the "New Generation" NG suffixed plugin that was renamed simply "Channel Analyzer"

ADS-B decoder plugin

This plugin is used to decode and visualize ADS-B messages. The user interface is described here

AIS demod plugin

This plugin is used to decode AIS messages. Messages can be sent to the AIS feature for display in the Map feature. The user interface is described here

AM demod plugin

This plugin is used to listen to AM stations such as air traffic or AM broadcast. The user interface is described here

APT demod plugin

This plugin can be used to receive NOAA satellite images transmitted using APT (Automatic Picture Transmission) signals. The user interface is described here

ATV demod plugin

This plugin can be used to watch amateur analog television (ATV). This is black and white and there is no sound carrier. Low refresh rates (FPS) and small number of lines are implemented to support NBTV (Narrow Band TV). The user interface is described here

Broadcast FM demod plugin

This plugin is used to listen to broadcast FM stations with possible stereo output and RDS decoding. The user interface is described here

Chirp Chat demod plugin (LoRa)

Chirp Chat is an experimental mode developed only in SDRangel based on chirp modulation analogous to LoRa. In fact it can also decode some LoRa messages (Spread Factors 11 and 12 with Distance Enhancement factor of 2). In modes alternative to LoRa (RTTY/ASCII) this version can work at extremely low SNR. The user interface is described here

DAB/DAB+ demod plugin

This plugin can be used to demodulate DAB and DAB+ broadcast. The user interface is described here

DATV demod plugin

This plugin can be used to watch digital amateur analog television (DATV). Accepted standards are DVB-S and DVB-S2. The user interface is described here

DSC (Digital Selective Calling) demod plugin

This plugin can be used to demodulate DSC (Digital Selective Calling) transmissions, which are short, pre-defined digital messages transmitted by marine radios. The user interface is described here

DSD (Digital Speech Decoder) demod plugin

This plugin is used to listen to digital voice transmissions. At present it covers the following digital speech formats:

  • DMR/MOTOTRBO
  • D-Star
  • dPMR
  • Yaesu System Fusion (YSF)
  • NXDN

More information and user interface description can be found here

File sink plugin

This plugin can be used to record channel I/Q data. Its functionality replaces the former I/Q recording from each device user interface. The user interface is described here

FreeDV demodulator plugin

This plugin can be used to demodulate and decode FreeDV signals (see: https://freedv.org). Not all modes are supported. More information and user interface description can be found here

Frequency Scanner plugin

This plugin can be used to scan a range of frequencies looking for a transmission and then tune another channel (such as an AM or DSD Demod) to that frequency. Interface description can be found here

Heat Map plugin

This plugin can be used to generate a heat map based on RF channel power. More information and user interface description can be found here

ILS demodulator plugin

This plugin can be used to demodulate ILS (Instrument Landing System) signals used by aircraft to fly precision approaches and auto-lands. More information and user interface description can be found here

M17 demod plugin

This plugin demodulates and decodes transmissions made in the M17 protocol M17 is a fully Open Source and Open Source audio codec based project (Codec2) for FM based digital voice amateur radio. More information is available here. The user interface is describled here

Navtex demod plugin

This plugin demodulates Navtex marine navigational and meteorological warnings and forecasts broadcast worldwide on 518kHz. The user interface is described here

NFM demod plugin

This plugin is used to listen to a narrow band FM station such as PMR or Amateur Radio. The user interface is described here

Noise figure measurement plugin

This plugin can be used to calculate the noise figure (NF) of a receiver (SDR as well as optionally one or more LNAs). It uses the Y-factor method and requires a calibrated noise source. The user interface is described here

Packet radio demodulator plugin

This plugin can be used to demodulate packet radio (APRS/AX.25) data packets. Received packets can be sent to the APRS Feature for decoding and display. The user interface is described here

Pager plugin

This plugin can be used to demodulate POCSAG pager messages. The user interface is described here

Radioastronomy plugin

The Radio Astronomy plugin provides a number of tools to help make radio astronomy measurements. The user interface is described here

Radio clock plugin

This plugin can be used to demodulate radio clock signals, such as MSF, DCF77, TDF and WWVB. The user interface is described here

Radiosonde demodulator plugin

This plugin can be used to demodulate RS41 radiosonde signals from weather balloons. The user interface is described here

RTTY demodulator plugin

This plugin can be used to demodulate Radioteletype. The user interface is described here

SSB demod plugin

This plugin is used to listen to SSB (possibly DSB) or CW stations such as Amateur Radio. The user interface is described here

WFM demod plugin

It is just the wideband version of the NFM demod plugin. It has no de-emphasis nor possibility of stereo output. If you plan to listen to wideband broadcast FM you should rather use the Broadcast FM demod plugin. The user interface description and more details can be found here

Frequency tracker plugin

This plugin can be used to track the center frequency of a carrier. It will try to adjust its center frequency on the carrier center frequency. It is normally used in conjunction with a utility program that monitors the plugin center frequency via reverse API. This utility can then make use of this information to control other plugins or any other purpose. The user interface is described here

Local sink plugin

This plugin sends I/Q samples from the baseband to a Local Input plugin source in another device set. It is basically the same as the Remote Sink channel plugin but pipes the samples internally instead of sending them over the network. The user interface is described here

Remote sink plugin

This plugin sends I/Q samples to another SDRangel instance that uses a Remote input sample source plugin to receive the samples. The user interface is described here

Remote TCP sink plugin

This plugin sends I/Q samples to another SDRangel instance that uses a Remote TCP input sample source plugin to receive the samples, or to applications that can connect to rtl_tcp. The user interface is described here

File sink plugin

This plugin can be used to record channel I/Q data. Its functionality replaces the former I/Q recording from each device user interface. The user interface is described here

SigMF file sink plugin

This plugin can be used to record channel I/Q data using the SigMF file format. It is only available when compiled from source and with GCC. The user interface is described here

UDP sink plugin

This plugin can be used to send samples to a listening application over the network using UDP blocks. For example this can be used to make a connection to GNUradio using its UDP source block. Optionally the audio at 48kHz sample rate can be returned to this plugin to be incorporated in the audio mix. The user interface description and more details can be found here

For an example of usage with multimon-ng to decode APRS look at https://github.com/f4exb/sdrangel/issues/25

This is different from the Daemon sink which purpose is to send the full baseband with no further filtering nor decimating.

VOR receiver

This plugin can be used to demodulate VOR (VHF omnidirectional range) navaids (navigation aids). VORs are radio naviation aids in the VHF 108 - 117.975MHz band commonly used for aircraft navigation. The user interface description and more details can be found here