[CQ-Contest] WPX CW Signal Quality Concerns

K9MA k9ma at sdellington.us
Mon Jun 8 23:25:22 EDT 2020

On a related note, if I've done the math right, at 50 wpm, a dit lasts 
24 ms, not including the following space.  I can see how 10 ms rise and 
fall might sound a bit mushy at that speed. 4 ms would probably sound 
better. However, contest speeds rarely exceed about 40 wpm, so 10 ms 
would probably be an acceptable tradeoff for a radio that lacks the 
raised cosine waveform, and much appreciated by the neighbors.

Outside of contests, when the bands aren't crowded, I'd have no 
objection to the super-QRQ folks using faster rise and fall times. As 
long as they remember to switch it back before the next contest.

Scott K9MA

On 6/8/2020 19:08, Jim Brown wrote:
> On 6/8/2020 1:12 PM, Jim Brown wrote:
>> They achieve rise time of about 2.5 msec,
> Correction from N6KR (designer) -- about 4 msec
> 73, Jim K9YC
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Scott  K9MA

k9ma at sdellington.us

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