Good point in the "On the other hand", Jim. I'm
not sure the original poster specified
KPA500/KAT500 or a 3rd party amp -- and it does
make a difference.
Phil W7OX
On 8/27/14, 10:50 PM, Jim Brown wrote:
On Wed,8/27/2014 9:22 PM, kd7gc wrote:
I have never heard of anyone suggesting that
tuning
should begin with anything close to 4 watts. I
generally go thru 3 or 4
steps, but I start with my transceiver set to
about 25 or 30 watts output.
Agreed. My Ten Tec Titans (a pair of triodes)
drive with a bit less than 50W. I have tune
settings for each amp for each band on a yellow
sticky next to the amp, so I set those, then hit
it with about 25W, tweak, run drive to see close
to 1500, and retune for maximum smoke as
indicated by the SWR/power meter. I tune with
dits, so the duty cycle is 50%, less stress than
full power carrier, but gives me correct tuning
for full power.
On the other hand, if you're tuning an auto
tuner like the KAT500, you want to tune it with
drive power only, the amp off.
73, Jim K9YC
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