OTOH, I used WPX W6NWS and only got spotted if someone manually spotted it.
I changed to WPX W6NWS CQ and began to show up by the skimmers. I would
never use CQ as part of calling someone when I am doing S&P or in the middle
of a QSO. If I just caught your call sign without CQ or QRZ I would normally
presume you are in the middle of exchange unless I heard the beginning of
your transmission and knew you soliciting calls.
Some use it on CW as well to distinguish when looking for new calls.
73, Larry W6NWS
-----Original Message-----
From: Dave Hachadorian
Sent: Tuesday, February 17, 2015 12:18 PM
To: reflector RTTY
Subject: [RTTY] WHY put CQ at the end?
Several times during the WPX RTTY contest, I was called on my CQ frequency
by stations who thought I was someone else, someone I had worked in the
previous few minutes. Apparently a RTTY Skimmer had misunderstood who was
actually running on the frequency and who was the S&P station. I can see
how this could easily happen, because I was ending my CQ message, and also
my TU message, with a CQ. Here’s an example:
CQ WPX K7ZX KZ7X CQ
W7WW W7WW
W7WW 599 1025 1025 W7WW
599 945 945
TU WK7S CQ
AA5AU AA5AU
So the skimmer hears
CQ W7WW W7WW and thinks W7WW is running, and spots him on my frequency.
Or, the skimmer hears
CQ AA5AU AA5AU and thinks AA5AU is running, and spots him on my frequency.
I know the skimmer guys have spent a lot of time working to reduce this
error, but it is obviously still not perfect.
The larger question that occurs to me, is “Why do RTTY ops put a CQ at the
end?” Nobody does this in CW or phone contests. Now that RTTY skimmers
have come of age, putting CQ at the end is causing identification issues.
Maybe it’s time to stop?
Dave Hachadorian, K6LL
Yuma, AZ
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