One for Lee...
Is the ARF used on the default frequency of 868.3Mhz, or do you actually use 868Mhz? and I presume the software also reconfigures the packet size to 24 bytes with no enc., and that you just use the ATAC command on power up rather than writing to flash with ATWR. Any other gotchas?
Reason I'm asking is that I'm trying to log any received P3I packets on a ground station linux machine.
Ta
Tim
Hi Tim,
that sounds impressive!
OK, the frequency is 869.4Mhz, this is because this is legal at 500mW
There is no encryption, and the packet size is 24 bytes
(apologies to the non-techies from this point onward)
We should probably take this offline (email me)
I have not yet published the header file for the packet structure as part of the Open-P3I format,
you will need this to decode correctly, I can let you have this as a side file.
Do you _really_ want to do this yourself ?
You sound pretty savvy, so you could just connect to the posix socket running on PilotAware
and then the messages will all be streamed to you - would that be better ?
You can then store them as you wish.
You can test this very easily by just telnet to the port which streams the messages to the navigation systems
So if you connect to the WiFi hotspot, (you type the bits in bold)
$
telnet 192.168.1.1 2000telnet 192.168.0.100 2000
Trying 192.168.0.100...
Connected to 192.168.0.100.
Escape character is '^]'.
PASS?
6000AOK$GPGGA,163157,5223.529,N,00127.449,W,2,05,1.0,72.8,M,-34.0,M,,*42
$GPGSA,A,3,20,02,10,13,04,08,07,23,,,,,1.00,1.00,1.00*0A
$GPRMC,163157,A,5223.529,N,00127.449,W,0.000,344,170815,,,A*77
$PFLAA,0,-51564,11904,11204,1,1D82BE8,155,,214,,8*1C
$PFLAA,0,-27097,-21943,6000,1,1D83818,142,,0,,8*07
$PFLAA,0,-38374,-11732,9375,1,4CA9CF,169,,217,,8*4A
$PFLAA,0,-32490,20302,3813,1,B6E47280,142,,0,,8*6B
$PFLAA,0,-27191,24483,5063,1,4CA803,146,,155,,8*68
$PFLAA,0,98007,-35671,9680,1,4CA760,325,,226,,8*60
$PFLAA,0,-58033,13398,11204,1,B6E47280,154,,0,,8*51
$PFLAA,0,268,-15376,353,1,47875C,326,,78,,8*1F
$PFLAA,0,-33448,34636,11204,1,4BA919,121,,211,,8*5E
$PFLAA,0,-45891,27574,10252,1,40666C,140,,182,,8*2B
$PFLAA,0,4163,33910,2891,1,4CA2D6,342,,147,,8*04
$PFLAA,0,50217,4393,4034,1,4067F6,308,,174,,8*0C
$PFLAA,0,-34494,-13936,5489,1,4CA9DD,141,,188,,8*45
$PFLAA,0,-39459,24657,11197,1,3C6642,140,,214,,8*29
...
Thx
Lee