[Yaesu] 990 with AL-80B amp

David G. Maley dgmaley@soli.inav.net
Tue, 18 Apr 2000 08:18:49 -0500 (CDT)


I suspect you are getting RF in somewhere.  What happens if you
connect the amp to a dummy load?
Dave
WA0ZZG


On Tue, 18 Apr 2000, Scott Ginsburg wrote:

> 
> I just bought an AL-80B amplifier and am seeing a weird thing
> happen. When I key the radio with VOX CW, the power output meter on
> the 990 rises to about 15W, then jumps to about 60W which is
> what I'm driving the amp with. I also notice a slight delay in the
> rise of the AL-80B's meters.
> 
> This does not happen if I manually key the radio using the MOX botton.
> When I disconnect the ALC line, the same thing happens. And, I'm not
> running QSK.
> 
> Anyone know what's going on here?
> 
> 						73,
> 						Scott
> 
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