On Mon, Jan 5, 2015 at 5:41 PM, Joe Subich, W4TV <lists@subich.com> wrote:
> Neither JT65, JT9, PSK31, PSK63, nor PSK125 sound like "random noise".
> All have a distinctive "sound" and are clearly identifiable on a
> waterfall or spectrum display. It should even be possible to make an
> informed guess as to the mode just based on the frequency - the
> "center of activity" for each digital mode is published just about
> everywhere except in the contest rules.
>
My point exactly.
1. If it sounds like something, it probably is something.
2. If you send QRL? and you hear something, assume it means "in use".
3. If you are using a frequency, and you hear something, assume it is a
QRL? and make a sound.
That should handle most cases and doesn't require knowing a bandplan or
center of activity. Just good manners.
jeff wk6i
--
Jeff Stai ~ wk6i.jeff@gmail.com
Twisted Oak Winery ~ http://www.twistedoak.com/
Facebook ~ http://www.facebook.com/twistedoak
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