[aprssig] INVALID STREAM entry in aprsd logs
kd4moj at kd4moj.org
Tue Dec 27 18:38:54 CST 2005
Stephen H. Smith wrote:
> fred at wb4aej.com wrote:
>> I just pulled up that D700a. Wow, that's cool.
>> Does it simultaneously run APRS while you run HF or VHF or can
>> it only do one at a time?
> It would be rather difficult to run HF since it only covers 2M and
> UHF. Otherwise it is a "dual dual-bander" -- essentially TWO
> dual-band radios in one box. This allows you to run APRS on the left
> side, and voice either on another 2M freq or UHF on the right side at
> the same time.
> The main limitation is that if you run both sides on the same band,
> you can't receive on one frequency while you are transmitting on the
> other since there is no in-band isolation between the two sides. It
> is possible to configure the TNC carrier detect to monitor both
> receivers' squelches so that an automatic APRS beacon will wait until
> the second receiver closes squelch before keying up. If you don't
> do this, you get about a 1/2 second hole punched into your receive on
> the second freq each time the APRS beacon keys up. This creates an
> effect similar to a priority channel scan where your operating
> channel receive gets interrupted periodically to check the priority
> If you run 2M on one side and UHF on the other, the two sides are
> totally independent and can operate simultaneously.
> Stephen H. Smith wa8lmf (at) aol.com
> EchoLink Node: 14400 [Think bottom of the 2M band]
> Home Page: http://wa8lmf.com
> "APRS 101" Explanation of APRS Path Selection & Digipeating
> Updated APRS Symbol Chart
> New/Updated "Rev G" APRS http://webs.lanset.com/wa8lmf/aprs
> Symbols Set for UI-View,
> UIpoint and APRSplus:
This is all cool.........
But...... has anyone noticed what my subject was about? or is it just
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