PilotAware

British Forum => Technical Support => Topic started by: jcross on June 27, 2019, 09:54:26 am

Title: Flarm Information on Port 2000
Post by: jcross on June 27, 2019, 09:54:26 am

Does anyone know if or how bearingless information is represented on Flarm output?

I thought it wasn't, but I read a forum post from 2016 indicating that a 3rd party device maybe skydemon could represent them on circles, but I couldn't find any extra information and I don't have skydemon.

http://forum.pilotaware.com/index.php/topic,808.msg9751.html#msg9751

I looked the dataport spec and couldn't find anything in there.

Title: Re: Flarm Information on Port 2000
Post by: Admin on June 27, 2019, 10:39:40 am

IIRC, RelativeEast is either missing or zero
http://forums.skydemon.aero/Topic21554.aspx#22776

Thx
Lee

Title: Re: Flarm Information on Port 2000
Post by: jcross on June 27, 2019, 12:20:15 pm

Thanks Lee, I'm glad you made some sense of my vague post!

Title: Re: Flarm Information on Port 2000
Post by: jcross on July 03, 2019, 08:45:15 am

I think I have found a bug in here.

The trk file contains a bunch of bearingless targets:
   Line 39: $PFLAA,2,3000,,-21,1,400D78!G-CHIP,,,,0.0,8*68
   Line 303: $PFLAA,2,3000,,-21,1,400D78!G-CHIP,,,,0.0,8*68
   Line 367: $PFLAA,2,3000,,-21,1,400D78!G-CHIP,,,,0.0,8*68
   Line 424: $PFLAA,2,3000,,-21,1,400D78!G-CHIP,,,,0.0,8*68


However, the captured output doesn't.
   Line 98: $PFLAA,3,1488,6216,-18,1,400D78!G-CHIP,115,0.0,142,0.0,8*4A
   Line 207: $PFLAA,3,1487,6217,-18,1,400D78!G-CHIP,115,0.0,142,0.0,8*44
   Line 314: $PFLAA,3,1487,6219,-18,1,400D78!G-CHIP,115,0.0,142,0.0,8*4A
   Line 421: $PFLAA,3,1485,6221,-18,1,400D78!G-CHIP,115,0.0,142,0.0,8*43
   Line 530: $PFLAA,3,1483,6223,-19,1,400D78!G-CHIP,115,0.0,142,0.0,8*46
   Line 637: $PFLAA,3,1483,6224,-19,1,400D78!G-CHIP,115,0.0,142,0.0,8*41

What its transmitting are ghosts from a previous sentence.  Its as if its not checking that its cleared the buffer when its parsed empty from the source file.  This has massively screwed up my project!!

Can anyone point out anything obvious I have screwed up?
Its for this project https://www.jcross.co.uk/projects/?p=147

Title: Re: Flarm Information on Port 2000
Post by: Admin on July 03, 2019, 09:21:34 am

Hi jcross

I am not sure I fully understand.
Can you provide some context to the data such as the GPGGA sentences which will contain the datestamps

also if you want to contact me directly with a detailed email that may be better, I will PM my email address
Thx
Lee

Title: Re: Flarm Information on Port 2000
Post by: jcross on July 03, 2019, 11:56:02 am

PM sent with both the track file and the output from the unit.