[aprssig] IRLP Node Object
hessu at hes.iki.fi
Mon Mar 26 00:53:29 CDT 2012
On Sun, 25 Mar 2012, Paul Yeager wrote:
> ;IRLP-4040*111111zDDMM.hhNIDDDMM.hhW0FFF.FFFMHz Tnnn CALLSIGN
> ... and what I entered is:
> ;IRLP-4397*111111z3522. NI08313. W0444.875MHz T131 K4RCC
> My problem is that aprs.fi appears not to like the format. Viewing the raw
> packets reveals:
> 2012-03-25 22:05:09 UTC: EGLNST>APN383,qAR,N4NE-1:;IRLP-4397*111111z3522.
> NI08313. W0444.875MHz T131 K4RCC [Delayed or out-of-order packet (timestamp)]
aprs.fi uses the timestamp for duplicate/delayed and out-of-order packet
filtering. If the timestamp suddenly jumps back, the packet is probably
older than the previous packet from that station, and can be thrown away.
(It's actually just a little bit more complicated than that, but that's
http://aprs.fi/info/a/IRLP-4397 - The same station is already transmitted
by K4RCC-13, which uses real UTC timestamps instead of a constant 111111z,
so aprs.fi takes the 111111z packet as a delayed one.
It's probably not a problem for you if aprs.fi doesn't accept your packets
- your target are the local RF-based stations, which probably do not see
More information about the aprssig