[Lowfer] KU4XR sending QRSS-10 on 160 Meters

[JD]

Here are three simultaneous views.  The top is Argo 10 sec slow as I usually 
view it with moderately high sensitivity and AGC on.  If I didn't already 
know what I was looking for, the fuzziness might have prevented recognizing 
the characters.

I wondered where this was coming from, which is why I did multiple captures. 
The middle shot is also at 10 sec with AGC, but the visual gain reduced 
drastically.  It appeared there were sidebands arising from Doppler shift, 
and also from amplitude variations.

The QRSS3 shot at bottom shows the amplitude fluctuations more clearly than 
can be seen at 10 seconds.

Because the approximate rate of the amplitude variations is close to the 
interelement interval, it may be that a mode either shorter or longer than 
10 seconds would be more readable, with a longer time also being more 
efficient efficient for detection.  (Just as 10 sec mode is too long for 
HiFERs, it may be a bit short for 160 meters.)  The amplitude-variation 
fuzziness probably wouldn't blur the elements together as badly at QRSS20, 
for instance.  Just a thought.

John 
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