[aprssig] Now 5 APRS Channels!

Dave dave at g8kbv.demon.co.uk
Tue May 24 05:01:14 EDT 2011


Bob.  Can you please qualify that info, is for North America only, 
especially on any website.

The bandplan and usage elsewhere is often completely different, especialy 
in the EU, where 144.39 is in the SSB/Propagation beacon segment.  Sadly 
APRS QPM has been heard there on odd ocasions (and it's not trans-
atlantic DX either!)

Over hear, 144.800 is the ONLY APRS frequency on 2m.   So please remember 
to QSY if you visit over hear carrying your trusty D7 etc.  Also, our 2m 
band, is only 144 to 146MHz.  (And 70cms is 430 to 440, with big 
restrictions in/arround London too.)


Dave G0WBX.

On 23 May 2011 at 11:43, Bob Bruninga wrote:

> Here is an updated recommendation for APRS channels in your APRS
> radio.  The purpose of all these channels is to allow you to configure
> the A side of your radio without ever turning down the radio volume on
> that side.  This makes sure you are always listening for voice alert
> calls, but can mute the packets temporarily or change to any of these
> other functions without having to touch any menus or function buttons.
> -- ------ ------- -------- ---------
> ---------------------------------- 1) 144.39 simplex APRS raw No tone 
>  for troubleshooting 2) 144.39 simplex APRSnorm CTCSS 100 with Voice
> Alert 3) 144.39 simplex APRSmute DCS xxx   for quiet or selcall at
> APRS events 4) 144.39 + 600   APRSevnt CTCSS 100 for special event
> with lots of HT's 5) 144.99 - 600   APRSdigi no tone   to be a WIDE1-1
> offset digi
> Notice, the change in channel 3.  The reason is, that unless you
> program the actual CHANNEL NAMES shown above, then looking at the
> radio, you cannot tell the difference between channel 2 and channel 3
> operation.  Both show as 144.39 with CT.  But if you make the "mute"
> channel use an unknown DCS code, then that channel will appear as
> 144.39 DC which is distinguishable from 144.39 CT.
> Bob, WB4APR

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