Bug in parsing Flarm PFLAA sentence - distance always shown as 0nm

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Bug in parsing Flarm PFLAA sentence - distance always shown as 0nm

Author	Message
b3nn0	b b3nn0 posted 9/9/2020 12:07:39 PM Topic Details Share Topic
b Group: Forum Members Posts: 42, Visits: 3.4K	Hi, there seems to be a bug in your Flarm-NMEA parser (PFLAA sentence). For the sake of testing, I did a little simulation in my Stratux. Relevant NMEA output: $PFLAU,26,1,2,1,2,17,2,30,1337,1111117B $PFLAA,2,1111,743,30,1,111111,180,0,36,0.0,054 The PFLAA sentence shows a relativeNorth distance of 1111m and a relativeEast distance of 743m. However, SkyDemon shows the distance as 0,0nm it its banner. The voice alert tells the correct distance.
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Tim Dawson	Tim Dawson posted 9/10/2020 9:37:36 AM Post Details Share Post
Group: Forum Members Posts: 8K, Visits: 9.1K	It's the PFLAU message that is generating an alert in SkyDemon. The distance reading does appear to have a bug in it, this is occurring where the distance is less than 1nm. Thanks for letting us know. However we would ask that if your device is pretending to be a Flarm device, please do NOT issue PFLAU messages. If you do, you will override SkyDemon's own traffic collision and awareness algorithms. That is not typically what users want. Edited 9/10/2020 9:37:48 AM by Tim Dawson
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