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[aprssig] Investigation into TELEM packets (XASTIR)

Andrew Rich vk4tec at tech-software.net
Thu Sep 29 17:57:51 UTC 2005


Curt, 

I that extra "I" ok on the stream ????

PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1 

Or is that what is confusing the APRS server ?

It seems it makes it to the server according to ethereal.

1) Send a TELEM packet on port 2023

Trying 192.168.1.100...
Connected to 192.168.1.100.
Escape character is '^]'.
user VK4TEC pass 21694
# javAPRSSrvr 3.10b02 29 Sep 2005 17:47:12 GMT T2AUST-2 192.168.88.21:14580

PCSAT2>BEACON,SGATE,WIDE:T#918,142,144,002,095,073,11111111,0001,1
PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1

PCSAT2>BEACON,SGATE,WIDE:T#918,142,144,002,095,073,11111111,0001,1
PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1

# javAPRSSrvr 3.10b02 29 Sep 2005 17:47:32 GMT T2AUST-2 192.168.88.21:14580
^]
telnet>   

2) What the incoming packet window says

 2:NET-> # javAPRSSrvr 3.10b02 29 Sep 2005 17:47:12 GMT T2AUST-2 192.168.88.21:14580
sp:NET-> user VK4TEC pass 21694

sp:NET-> PCSAT2>BEACON,SGATE,WIDE:T#918,142,144,002,095,073,11111111,0001,1
 2:TX -> VK4TEC-10>APX150,:PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1

sp:NET-> PCSAT2>BEACON,SGATE,WIDE:T#918,142,144,002,095,073,11111111,0001,1
 2:TX -> VK4TEC-10>APX150,:PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1

3) What iagte.ini though about it 

IGATE RF->NET(N):PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1
TRANSMIT: IGate RF->NET packet on device:2

IGATE RF->NET(N):PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1
TRANSMIT: IGate RF->NET packet on device:2

4) Here is what the packet sniffer said (is that extra "I" ok in there ???????) ethereal talking to APRS IS

# javAPRSSrvr 3.10b02 29 Sep 2005 17:47:12 GMT T2AUST-2 192.168.88.21:14580 
PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1 
PCSAT2>BEACON,SGATE,WIDE,VK4TEC-10*,I:T#918,142,144,002,095,073,11111111,0001,1 
# javAPRSSrvr 3.10b02 29 Sep 2005 17:47:32 GMT T2AUST-2 192.168.88.21:14580 








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