[aprssig] PinPoint APRS Developer?
Lynn W Deffenbaugh (Mr)
KJ4ERJ at arrl.net
Thu Nov 3 12:48:54 EDT 2022
Is there a developer or support contact available for PinPoint APRS?
There is an apparent problem in their message acking implementation.
PinPoint is sending acks for messages that do not contain a sequence
number and therefore are not requesting an ack. ANSRVR forwards
notification messages specifically not requesting an ack, but PinPoint
is sending acks back to the originator of the message anyway.
Consider the following 2 raw packet captures from aprs.fi:
https://aprs.fi/?c=raw&call=LZ2ISI-1
2022-11-03 09:02:30 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::ANSRVR :ack
2022-11-03 09:05:06 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::KC8OWL-7 :ack52
2022-11-03 09:09:24 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::9W2DVZ-2 :ack
2022-11-03 09:12:45 EDT: LZ2ISI-1>APIN20,LZ2HQ*,LZ0BGM*,WIDE2*,qAR,LZ3SV::9W2DVZ-2 :ack [Duplicate message content]
2022-11-03 09:13:20 EDT: LZ2ISI-1>APBM1S,TCPIP*,qAS,BM2841:@031313z4252.31N/02518.83EQPHG0100MMDVM MMDVM HS 430.5000/430.5000 CC1
2022-11-03 09:14:10 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::KM6TWI-5 :ack [Duplicate message content]
2022-11-03 09:14:27 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2KAC-5::WA4MT-10 :ack
2022-11-03 09:18:33 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2KAC-5::AB1PH-7 :ack [Duplicate message content]
2022-11-03 09:23:21 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::WA4MT-10 :ack
2022-11-03 09:27:09 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::KJ4ERJ-4 :ack [Duplicate message content]
2022-11-03 09:29:07 EDT: LZ2ISI-1>APBM1S,TCPIP*,qAS,BM2841:@031329z4252.31N/02518.83EQPHG0100MMDVM MMDVM HS 430.5000/430.5000 CC1
2022-11-03 09:31:52 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::KE8PYM-7 :ack
2022-11-03 09:33:27 EDT: LZ2ISI-1>APIN20,LZ2HQ*,LZ0BGM*,WIDE2*,qAR,LZ3SV::KE8PYM-7 :ack [Duplicate message content]
2022-11-03 09:43:40 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::K5BDL-7 :ack
2022-11-03 09:43:52 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2KAC-5::K9WNG-1 :ack [Duplicate message content]
2022-11-03 09:44:04 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ0BOT::NC6J-7 :ack [Duplicate message content]
2022-11-03 09:44:52 EDT: LZ2ISI-1>APBM1S,TCPIP*,qAS,BM2841:@031344z4252.31N/02518.83EQPHG0100MMDVM MMDVM HS 430.5000/430.5000 CC1
2022-11-03 09:45:07 EDT: LZ2ISI-1>APIN20,LZ0BOT*,WIDE1*,WIDE2-1,qAR,LZ3SV::NC6J-7 :ack [Duplicate message content]
2022-11-03 09:47:28 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::M5PDL-9 :ack [Duplicate message content]
2022-11-03 09:50:42 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::KJ4ERJ :PinPoint APRS{1
2022-11-03 09:52:16 EDT: LZ2ISI-1>APIN20,LZ2HQ*,LZ0BGM*,WIDE2*,qAR,LZ3SV::KJ4ERJ :PinPoint APRS{1
2022-11-03 09:54:03 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::K7XYG-9 :ack
2022-11-03 09:57:23 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ0BOT::KJ4ERJ :ack [Duplicate message content]
2022-11-03 09:59:12 EDT: LZ2ISI-1>APIN20,LZ0BGY*,LZ0BGM*,WIDE2*,qAR,LZ3SV::KJ4ERJ :ack
2022-11-03 09:59:32 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2KAC-5::M7ARR-10 :ack [Duplicate message content]
2022-11-03 10:00:39 EDT: LZ2ISI-1>APBM1S,TCPIP*,qAS,BM2841:@031400z4252.31N/02518.83EQPHG0100MMDVM MMDVM HS 430.5000/430.5000 CC1
2022-11-03 10:05:20 EDT: LZ2ISI-1>APIN20,WIDE1-1,WIDE2-1,qAR,LZ2HQ::KD7KLA :ack
2022-11-03 10:06:49 EDT: LZ2ISI-1>APIN20,LZ0BGY*,LZ0BGM*,WIDE2*,qAR,LZ3SV::KD7KLA :ack [Duplicate message content]
https://aprs.fi/?c=raw&call=KG5EUX
2022-11-03 10:18:07 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::WA4MT-9 :ack
2022-11-03 10:21:04 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KB8VUC-1 :ack [Duplicate message content]
2022-11-03 10:21:25 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KC8OWL-7 :ack [Duplicate message content]
2022-11-03 10:23:20 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KN6PRD-4 :ack
2022-11-03 10:23:37 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::VE1RMJ-15:ack [Duplicate message content]
2022-11-03 10:26:04 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST:!3218.71N/09612.10WFem12vh -kg5eux base station - Seven Points
2022-11-03 10:26:54 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::YO2OWL-7 :ack [Duplicate message content]
2022-11-03 10:46:03 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KC3QOF-9 :ack
2022-11-03 10:51:15 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KE4LPD-7 :ack
2022-11-03 10:54:43 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KD9UYS-10:ack [Duplicate message content]
2022-11-03 10:56:04 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST:!3218.71N/09612.10WFem12vh -kg5eux base station - Seven Points
2022-11-03 10:56:26 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::9W2GDB :ack
2022-11-03 10:58:03 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::PD1JHG-5 :ack [Duplicate message content]
2022-11-03 11:01:41 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::WB8SKP :ack
2022-11-03 11:05:09 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KP4CA-9 :ack [Duplicate message content]
2022-11-03 11:05:57 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::WA5HDC :ack [Duplicate message content]
2022-11-03 11:08:34 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KC1FGY :ack
2022-11-03 11:12:11 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST:!3218.71N/09612.10WFem12vh -kg5eux base station - Seven Points
2022-11-03 11:21:48 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KP4MSR-8 :ack
2022-11-03 11:26:04 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST:!3218.71N/09612.10WFem12vh -kg5eux base station - Seven Points
2022-11-03 11:26:10 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KJ7GHF-7 :ack [Duplicate message content]
2022-11-03 11:33:42 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::G1VWC-9 :ack
2022-11-03 11:34:51 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KB7UVC :ack [Duplicate message content]
2022-11-03 11:48:40 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::N9NDF-3 :ack
2022-11-03 11:48:57 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KN6SRN-1 :ack [Duplicate message content]
2022-11-03 11:50:18 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KG5DWM-7 :ack [Duplicate message content]
2022-11-03 11:56:04 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST:!3218.71N/09612.10WFem12vh -kg5eux base station - Seven Points
2022-11-03 11:56:44 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::VA1MRT-7 :ack
2022-11-03 12:02:17 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::AB1PH-12 :ack
2022-11-03 12:05:12 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::G1VWC-9 :ack [Duplicate message content]
2022-11-03 12:06:37 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::IZ5BIT :ack [Duplicate message content]
2022-11-03 12:07:13 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::IZ5BIT :ack [Duplicate message content]
2022-11-03 12:13:41 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KD2ZIX-5 :ack
2022-11-03 12:21:34 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::WH6OMG-7 :ack
2022-11-03 12:21:59 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::OH7LZB-4 :ack [Duplicate message content]
2022-11-03 12:22:44 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::N1PQE-7 :ack [Duplicate message content]
2022-11-03 12:25:12 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::PD4JD-9 :ack [Duplicate message content]
2022-11-03 12:26:04 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST:!3218.71N/09612.10WFem12vh -kg5eux base station - Seven Points
2022-11-03 12:26:16 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::OE6PLD :ack [Duplicate message content]
2022-11-03 12:29:37 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KE5FDZ-8 :ack
2022-11-03 12:29:58 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KC8OWL-7 :ack [Duplicate message content]
2022-11-03 12:31:49 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KO4BOD-4 :ack [Duplicate message content]
2022-11-03 12:33:28 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::OE8RPK-9 :ack [Duplicate message content]
2022-11-03 12:41:01 EDT: KG5EUX>APIN20,TCPIP*,qAC,T2CAEAST::KF0GCK-7 :ack
All of those empty :ack messages (empty because there is no sequence
number) should not be issued by PinPoint.
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
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