[Amps] exciter overshoot

Steve Thompson g8gsq at eltac.co.uk
Fri Jun 9 11:05:17 EDT 2006



Peter Chadwick wrote:
> Exciter overshoot has been mentioned a lot here in the past. I seem to remember that full power spikes are not uncommon because of the use of ALC loops for power setting, and some rigs are worse than others. If I recall correctly, Tom, W8JI, did a number of measurements. Personally, I always feel a bit uncomfortable with ALC operating - it tends to be shutting the stable door after the horse has gone.
And the effects are more dramatic if the amplifier has a slow aerial c/o 
relay.

Steve


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