[TenTec] cw overshoot

bob finger finger at goeaston.net
Mon Feb 28 10:45:45 EST 2005


Mark: My Orion does this as well if running at about 100 watts.  Ignore 
the meter pinning; it was much worse in earlier firmware.  What is 
important is the power overshooot on the first couple of characters 
sent.  The first few are about 10% higher power than the setting, or 
settling in power output on cw.  This is important only if you are 
driving an amplifier with low drive requirements, and one should then be 
aware of and compensate for it as needed. 

I cannot say this is why the meter pins, but suspect it has to have some 
influence.  I see the power overshoot clearly on a scope. The Orion is 
not the only radio that does this, and some are far worse than 
Orion..knowing about it is important so you can take it into account as 
necessary.   73 bob de w9ge

>I just made my first CW QSO with the Orion where I ran full (100w) power. I
>noticed that at the beginning of a transmission, the meter would peg as I
>could hear it hitting the stop.  It quickly dropped back to 100w. I was
>transmitting into my triband beam which has a pretty low (< 1.5) SWR.  My
>rise time was set at 8 ms, I was keying at 16 WPM.
>
>73,
>Mark
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