kopia lustrzana https://github.com/cyoung/stratux
25 wiersze
3.6 KiB
HTML
25 wiersze
3.6 KiB
HTML
<div class="section text-left help-page">
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<p>The <strong>Traffic</strong> page provides a list of all aircraft position reports received within the last 60 seconds. Each time a new aircraft is detected, it is added to the list. Each time a new report is received for an existing aircraft, the list is updated. If a valid position for an aircraft has not been received within the last 60 seconds, the aircraft is removed from the list.</p>
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<p>For each aircraft, the list includes the following details:</p>
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<ul>
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<li><strong>Callsign</strong> is the aircraft callsign or tail number. Unknown callsigns will be shown as <span class="label traffic-style11">[--N/A--]</span>. Color and symbol indicates traffic source:</li>
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<ul class="list-simple">
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<li><span class="label traffic-style11">✈ ADSB1090</span> 1090 MHz air-to-air ADS-B traffic is displayed with a medium blue background and airplane symbol.</li>
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<li><span class="label traffic-style12">✈ ADSR1090</span> 1090 MHz ground-to-air ADS-R rebroadcasts are displayed with a light cyan background and airplane symbol.</li>
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<li><span class="label traffic-style14">📡 TISB1090</span> 1090 MHZ TIS-B traffic is displayed with a light cyan background and antenna symbol.</li>
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<li><span class="label traffic-style21">✈ ADSB978</span> 978 MHz air-to-air ADS-B traffic is displayed with a light tan background and airplane symbol.</li>
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<li><span class="label traffic-style22">✈ ADSR978</span> 978 MHz ground-to-air ADS-R rebroadcasts are displayed with a gold background and airplane symbol.</li>
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<li><span class="label traffic-style24">📡 TISB978</span> 978 MHz TIS-B traffic is displayed with a gold background and antenna symbol.</li>
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</ul>
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<li><strong>Code</strong> is the ICAO 24-bit code (ADS-B/ADS-R targets), 24-bit FAA-assigned track file ID (TIS-B), or Mode C squawk code, if <strong>Show Squawk</strong> is enabled, and if a squawk code has been received for that target.</li>
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<li><strong>Location</strong> - Reported latitude and longitude, DD° mm'.</li>
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<li><strong>Dist</strong> - Calculated distance to target in nautical miles. Requires GPS position and <strong>Show Distance</strong> slider to be enabled.</li>
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<li><strong>Bearing</strong> - Calculated bearing to target in degrees true. Requires GPS position and <strong>Show Distance</strong> slider to be enabled.</li>
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<li><strong>Altitude</strong> - Reported pressure altitude, feet MSL. Climb or descent rate is also shown if not in level flight.</li>
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<li><strong>Speed</strong> - Reported ground speed, rounded to the nearest 5 knots. Invalid or missing values are shown as '---'.</li>
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<li><strong>Course</strong> - Reported true course, rounded to the nearest 5°. Invalid or missing values are shown as '---'</li>
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<li><strong>Power</strong> - Signal strength in dB. The maximum signal is about +1.4 dB. For typical unamplified SDRs, the minimum detection threshold is about -35 dB for altitude reports, and -30 dB for position reports.</li>
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<li><strong>Age</strong> - Age of the last position report, seconds.</li>
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</ul>
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<p>Additionally, if <strong>1090 MHz</strong> is enabled on the <strong>Settings</strong> page, most users will see reports from aircraft in the <strong>Basic Mode S and No-Position Messages</strong> table. These are targets that do not transmitting ADS-B position. Instead, Stratux is picking up altitude, squawk code, and occasionally velocity reports from non-ADS-B Mode S reports. These include air-to-air TCAS messages and radar interrogations, and typically make up the majority of all 1090 messages received.</p>
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