[Elecraft] XV144 - does it power spike

VR2BrettGraham vr2bg at harts.org.hk
Fri Dec 21 21:39:55 EST 2012


W8ZN shared:

> Most of the YaKeIc I've ever worked with have this issue. Anytime you 
> use ALC to control the power output there is a chance that that can 
> happen if you are turning the power way down. When the rig is first 
> keyed, there is a window before the ALC voltage is set properly that 
> can allow this. It may be only milliseconds but with solid state 
> devices, that could be all it takes.

I think this might be product specific, as ! never experienced this with 
any Brand-I or Brand-K & only with one Brand-Y product I have had or 
used over the years.

On that particular Brand-Y product, there is overshoot only when 
reducing power from the front panel control - not when the rear panel 
spigot is pulled negative - the exact opposite of what is mentioned above.

Probably best to check, as Terry says that little overshoot can damage - 
or if one of those rigs were driving something like a KPA500, spit out a 
bit of splatter that isn't nice.

73, ex-VR2BG/p.



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