[Elecraft] Me and my K3 in the ARRL RTTY Roundup

[Brian Alsop]

Of course, the solution (given the capture effect of RTTY decoders) is 
to be stronger than anybody else calling.

As unfortunate as it may seem, might makes right for RTTY.  Operator 
skills on the TX side play less of a role.

73 de Brian/K3KO

On 1/10/2011 16:07, Richard Ferch wrote:
> Jim,
>
> W0EB wrote:
>
>> Now, the main observation.  There were an awful lot of "Alligator" stations out there \
>> that don't have very good receivers.  If I could decode the signals, I called them.  \
>> Many of the weaker signals came right back to me, but an awful lot of the S9+ \
>> stations couldn't seem to hear anything (not just me, but a lot of stations).
>
> I suspect this particular problem doesn't have much to do with their
> receivers. I believe it may be characteristic of RTTY, caused by the
> presence of multiple stations responding to a CQ. In CW or SSB, the CQer
> can often pick out one or more calls by ear from a pileup, with the help
> of small differences in tone/pitch, speed and signal strength. In RTTY,
> if none of the responders' signals is strong enough to dominate the
> input to the decoder, the operator is likely to see only garble on his
> screen and not be able to pick out any call signs until the pileup thins
> out.
>
> I believe this may be why the problem seemed to be worse with louder
> stations - they are the ones who are most likely to attract a big pileup
> every time they CQ.
>
> 73,
> Rich VE3KI
>
>
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