[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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