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[aprssig] D700A TNC Problems????

Bob Gould bobg575 at yahoo.com
Fri Sep 14 21:58:32 UTC 2007


Ken,

My first thought is that you are getting some RF from
the bike into the signal. This could be causing it to
appear off frequency or distorted so that the DIGI or
IGATE does not recognize the packet stream. You may
already know this but one thing to keep in mind is
that APRS only covers a range of 1/2 to 1/3 the range
as voice does. The packets have to be heard complete
or nothing happens. You could possibly add a little
delay in the setting. It may be keying so quickly that
it is clipping the packet at times also.

My 2 cents
Bob
N1WJO

--- "Ken H>" <sailingtoo at gmail.com> wrote:

> Hello all. I'm riding from Fairhope, AL over to work
> each day and have
> not been getting into the digipeaters that well. The
> KI4ELU-7 I get to
> nicely when in range, but as I cross I-10 to the
> north, I do not get
> digi'd very good. When on I-10 I am VERY close to
> W4IAX-7 digi. See
> below for my raw packets showing KI4ELU-7 as the
> first digi that picks
> me up. Note that N4ESS-2 in the next batch of raw
> packets is picked up
> by W4IAX-7 digi even though he's futher away than I
> am. Can anyone
> give me any ideas as to "why" W4IAX-7 digi does not
> pick me up? I'm
> using a D700A radio mounted on a motorcycle.
> 
> 2007-09-13 11:34:15 GMT:
>
K9FV-1>SP4P2W,KI4ELU-7,W4NN-1*,WIDE2-1,qAo,WD4HDT:`tZl"|*</]"3c}Test
> new
> APRS de K9FV
> 2007-09-13 11:45:42 GMT:
>
K9FV-1>SP3S1V,KI4ELU-7,WF4X-7,W4AP-3*,qAO,KE4LTT:`t_Fm!k</]"3[}Test
> new APRS
> de K9FV
> 2007-09-13 11:46:34 GMT:
>
K9FV-1>SP3R7T,KI4ELU-7,W5PFC*,WIDE2-1,qAo,AA5ED-10:`t_Fo5k</]"3\}Test
> new
> APRS de K9FV
> 2007-09-13 11:47:08 GMT:
>
K9FV-1>SP3R7T,KI4ELU-7,WF4X-7*,WIDE2-1,qAo,WD4ROJ-1:`t_Fo5k</]"3\}Test
> new
> APRS de K9FV
> 2007-09-13 11:51:35 GMT:
>
K9FV-1>SP3P9T,KI4ELU-7,W5PFC*,WIDE2-1,qAo,AA5ED-10:`t`7l
> e</]"3c}Test new
> APRS de K9FV
> 2007-09-13 11:52:52 GMT:
>
K9FV-1>SP3P9T,KI4ELU-7,WF4X-7*,WIDE2-1,qAo,WD4ROJ-1:`t`7l
> e</]"3c}Test new
> APRS de K9FV
> 
> HEre is W5WHT-7's raw packets showing W4IAX-7 as his
> first digipeater
> most of the time with KI4ELU-7 only twice.
> 
> 2007-09-13 22:04:43 EDT:
>
*W5WHT-7<http://aprs.he.fi/?c=raw&limit=&call=W5WHT-7>
> *>S0TQ5Q,W4IAX-7
>
<http://aprs.he.fi/?c=raw&limit=&call=W4IAX-7>,WIDE1,W4NN-1<http://aprs.he.fi/?c=raw&limit=&call=W4NN-1>
> ,WIDE2,WF4X-7*
>
<http://aprs.he.fi/?c=raw&limit=&call=WF4X-7>,WIDE2-1,qAo,
> WD4ROJ-1
> <http://aprs.he.fi/?c=raw&limit=&call=WD4ROJ-1>:`tYR
> ?
k/]"4(}
>  2007-09-13 22:08:03 EDT:
>
*W5WHT-7<http://aprs.he.fi/?c=raw&limit=&call=W5WHT-7>
> *>S0SY9Y,W4IAX-7
>
<http://aprs.he.fi/?c=raw&limit=&call=W4IAX-7>,WIDE1,W4NN-1<http://aprs.he.fi/?c=raw&limit=&call=W4NN-1>
> ,WIDE2*,WIDE2-2,qAo,WD4HDT
> <http://aprs.he.fi/?c=raw&limit=&call=WD4HDT>:`sV$
> ]-k/]"3u}
>  2007-09-13 22:10:05 EDT:
>
*W5WHT-7<http://aprs.he.fi/?c=raw&limit=&call=W5WHT-7>
> *>S0SY5S,W4IAX-7
> <http://aprs.he.fi/?c=raw&limit=&call=W4IAX-7>
>
,WIDE1*,WIDE2,WIDE2-2,qAO,KB5VE-1<http://aprs.he.fi/?c=raw&limit=&call=KB5VE-1>:`sTH
> I!k/]"3q}
>  2007-09-13 22:10:37 EDT:
>
*W5WHT-7<http://aprs.he.fi/?c=raw&limit=&call=W5WHT-7>
> *>S0SY5S,KI4ELU-7
>
<http://aprs.he.fi/?c=raw&limit=&call=KI4ELU-7>,W4NN-1<http://aprs.he.fi/?c=raw&limit=&call=W4NN-1>
> ,WIDE2,WF4X-7
>
<http://aprs.he.fi/?c=raw&limit=&call=WF4X-7>,WIDE2*,qAO,
> KD4MOJ-9
> <http://aprs.he.fi/?c=raw&limit=&call=KD4MOJ-9>:`sTH
> I!k/]"3q}
>  2007-09-13 22:12:05 EDT:
>
*W5WHT-7<http://aprs.he.fi/?c=raw&limit=&call=W5WHT-7>
> *>S0SY3S,KI4ELU-7
>
<http://aprs.he.fi/?c=raw&limit=&call=KI4ELU-7>,W4JBB-7*<http://aprs.he.fi/?c=raw&limit=&call=W4JBB-7>
> ,WIDE2-2,qAO,KF4YPK-2
> <http://aprs.he.fi/?c=raw&limit=&call=KF4YPK-2>:`sRd
> lk/]"3x}
>  2007-09-13 22:14:09 EDT:
>
*W5WHT-7<http://aprs.he.fi/?c=raw&limit=&call=W5WHT-7>
> *>S0SY3Q,W4IAX-7
> <http://aprs.he.fi/?c=raw&limit=&call=W4IAX-7>
>
,WIDE1*,WIDE2,WIDE2-2,qAO,KB5VE-1<http://aprs.he.fi/?c=raw&limit=&call=KB5VE-1>:`sQK
> Rvk/]"4#}
>  2007-09-13 22:18:14 EDT:
>
*W5WHT-7<http://aprs.he.fi/?c=raw&limit=&call=W5WHT-7>
> *>S0SX3Q,W4IAX-7
>
<http://aprs.he.fi/?c=raw&limit=&call=W4IAX-7>,WIDE1,W4NN-1<http://aprs.he.fi/?c=raw&limit=&call=W4NN-1>
> ,WIDE2*,WIDE2-2,qAo,WD4HDT
> <http://aprs.he.fi/?c=raw&limit=&call=WD4HDT>
> :`sP2n6<k/]"4E}
> My concern is the TNC in my D700A isn't working
> correctly - I've read a
> couple of posts about the TNC not transmitting
> correctly - perhaps with
> packets digi'd for a couple of days, then not
> working correctlly.  Since
> this radio is only a month old, I'd like to
> determine this early on if
> possible.
> 
> Also, there are several times when I get digi'd by
> the KI4ELU-7 digi, but it
> never makes it to an Igate.  Perhaps the TNC is
> sending packets that are
> almost out of spec and only KI4ELU can pass them
> reliably?
> 
> Is there any way I can *test* this radio to check?
> 
> Thanks to all for any help,
> 
> Ken H> K9FV-1
> > _______________________________________________
> aprssig mailing list
> aprssig at lists.tapr.org
>
https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> 



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