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Hessu,<br>
<br>
I know how much we love "special" values, but 111111z is another one
of those that you probably need to make an exception for.<br>
<br>
From <a class="moz-txt-link-freetext" href="http://www.aprs.org/info/object-perm.txt">http://www.aprs.org/info/object-perm.txt</a><br>
<br>
<blockquote type="cite">
<pre>OBJECTS: use the unique 111111z timestamp to indicate permanence
The 111111z time stamp has always been recommended for all timeless
objects as a default to indicate to the viewer that this object time
stamp carries no temporal value. Therefore, it was a reasonable
extension of this concept to declare that a 111111z object is permanent
and should not be overwritten by any other identically named object
UNLESS it is originated by the same transmitting station.
</pre>
</blockquote>
<br>
<br>
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32<br>
<br>
On 3/26/2012 1:53 AM, Heikki Hannikainen wrote:
<blockquote cite="mid:alpine.DEB.1.10.1203260848040.15909@he.fi"
type="cite">On Sun, 25 Mar 2012, Paul Yeager wrote:
<br>
<br>
<blockquote type="cite">;IRLP-4040*111111zDDMM.hhNIDDDMM.hhW0FFF.FFFMHz
Tnnn CALLSIGN
<br>
<br>
... and what I entered is:
<br>
<br>
;IRLP-4397*111111z3522. NI08313. W0444.875MHz T131 K4RCC
<br>
<br>
My problem is that aprs.fi appears not to like the format.
Viewing the raw
<br>
packets reveals:
<br>
<br>
2012-03-25 22:05:09 UTC:
EGLNST>APN383,qAR,N4NE-1:;IRLP-4397*111111z3522.
<br>
NI08313. W0444.875MHz T131 K4RCC [Delayed or out-of-order packet
(timestamp)]
<br>
</blockquote>
<br>
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 the principle.)
<br>
<br>
<a class="moz-txt-link-freetext" href="http://aprs.fi/info/a/IRLP-4397">http://aprs.fi/info/a/IRLP-4397</a> - 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.
<br>
<br>
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 K4RCC-13's packets.
<br>
<br>
- Hessu<br>
<br>
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<br>
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</pre>
</blockquote>
<br>
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