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k5nrd

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Yaesu FTM-400XDR aprs packets over serial link is a non-standard format Aug 31st 2016, 16:54 1 1,425 on 31/8/16

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Yaesu FTM-400XDR aprs packets over serial link is a non-standard format k5nrd on 31/8/16
I have run into an issue with using the serial packet out on my FTM-400XDR. The data it is sending is split across two lines and includes some extraneous information. Due to this, programs like APRSdroid and Xastir are unable to properly parse the packets and display information about the objects/beacons/messages.

Below is a capture of the output from the radio's serial port. Note that sometimes a packet is followed by one newline, other times two.

W5NGU-3>APRX28 [08/13/16 00:26:22] :
;W5NGU-VHF*111111z3313.66N/09707.60WrW5NGU 146.920 pl 110.9 -0.6
W5NGU-3>APRX28 [08/13/16 00:26:23] :
;W5FKN-VHF*111111z3307.84N/09706.00WrW5NGU 145.17 pl 110.9 +5MHz
W5NGU-3>APRX28 [08/13/16 00:26:25] :
;WA5LIE/F *111111z3313.75N/09707.64WrWA5LIE/F Fusion 443.525 pl 118.8 +5MHz
N0FIB-7>SRTX6T,K5FTW-5*,WIDE2 [08/13/16 00:26:35] :
`}5Wlp [/`"60}_$

K5VLK-8>SSQU1R,W5NGU-3,WIDE1*,WIDE2-1 [08/13/16 00:26:54] :
`}_Xl -/`146.920MHz C110 -060 !SN! !DCARES_%

N3HA-9>APOTW1,W5NGU-3,WIDE1* [08/13/16 00:27:11] :
!3258.78N/09700.56W_087/000g002t080P082h91b10036OTW1
WD5RP-2>APTW01,K5FTW-5*,WIDE2 [08/13/16 00:27:37] :
!3241.74N/09711.24W_patten@flash.net
NT5HS-12>APT314,WIDE1*,WIDE2 [08/13/16 00:27:54] :
/130527z3305.15N/09639.97WP216/016/A=000679
N5WYN-1>APWW10,W5EEY-3,WIDE1,KK5PP-3*,WIDE2 [08/13/16 00:28:36] :
>EM12vh/- APRSISCE/32
WD5RP-2>APTW01,K5FTW-5*,WIDE2 [08/13/16 00:28:41] :
!3241.74N/09711.24W_patten@flash.net
KC5TIL-3>APTW01,K5FTW-5*,WIDE2 [08/13/16 00:28:58] :
_08130027c299s000g004t077r000p016P004h88b10120tRSW
K5NRD-9>S3PQ5P,W5NGU-3,WIDE1*,WIDE2-1 [08/13/16 00:28:59] :
`|RRl"3j/`"5w}146.640MHz T118 -060_%

WD5RP-2>APTW01,K5FTW-5*,WIDE2 [08/13/16 00:29:43] :
_08132328c293s000g008t078r000p000P043h68b10124tRSW
WD5RP-2>APTW01,K5FTW-5*,WIDE2 [08/13/16 00:29:47] :
!3241.74N/09711.24W_patten@flash.net

The output is almost valid TNC-2 format, but for some reason Yaesu put a timestamp, "" and a CR/LF in the header.

I contacted Yaesu about the issue, but have spent 2 weeks going back and forth trying to get them on the same page. Does anyone have a suggestion for how I could better explain the issue? Optionally, some kind of workaround would be nice. At this point I'm considering building a small inline device that reads in the serial data, corrects it, then outputs it on the other end.

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