Topband: keying waveform-ARRL savy

[Barry N1EU]

>From: Bill Aycock <baycock at direcway.com>
>I am not too sure the ARRL-QST staff has anyone who understands this 
>subject and the ways to measure it. I have been puzzled/confused by the 
>scope depiction of the key closure- resulting  waveform shown in QST for 
>some time. Take a look at the ORION review in the recent QST (January, pg 
>66, fig. 2). There is a delay from key closure to signal, which is 
>possible, but how and why does the signal start down BEFORE the key is 
>opened?

This question was addressed (beat to death?) on the Ten-Tec forum.  The 
signal doesn't "start down BEFORE the key is opened".  The key closure is 
the negative going part of the upper square wave.  There is a 20+ msec delay 
between initial key closure and rf output.  "Cut and paste" to get the scope 
photo?  I think not.

73,
Barry N1EU

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