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pjalocha / esp32-ogn-tracker

OGN Tracker implementation on ESP32 devices
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OGN tracker with Stratux Europe #31

Open kaelsaes opened 3 years ago

kaelsaes commented 3 years ago

Hi,

thanks for your great project.

I'm using your OGN tracker together with my Stratux Europe traffic awareness device.

I love the additional option to send P3I (PilotAware) signals.

My PilotAware Rosetta receives the P3I signals from Stratux Europe / OGN tracker. But the signals are sent to rare. Sometimes Rosetta has to wait 60 seconds or more to receive a P3I signal even though both devices are placed next to each other.

Do I have an issue with my OGN tracker or is this normal operation?

Thanks in advance.

Best regards Kai

pjalocha commented 3 years ago

It is most likely that the device is not moving. When moving more than 1m/s the OGNTP packet should be sent at 1Hz rate and the PilotAware packet at about 1/4Hz. When not moving the rates are about 4 times lower. This is all still subject to optimization, basically the rules of 1% duty must be kept and the OGNTP packets being 5ms, P3I being 8ms long, then there is LoRaWAN which is transmitted at about 1/60Hz and packets are about 60ms long, and yet FANET packets, at about 1/20Hz rate 30ms long. If you can, please check what happens when the OGN-Tracker is moving more than 1m/s.

kaelsaes commented 3 years ago

I have tested last week in my car. The problem still appeared. I will test in flight when the weather becomes better. Is FANET already available?

pjalocha commented 3 years ago

Please send me the Stratux .ogn log files from your car test via the private channel. I can then see how often the P3I position was transmitted.

kaelsaes commented 3 years ago

I have sent the log files.

Thanks