W3FPR - Don Wilhelm wrote:
I don't have the full answer, but can offer this 'food for thought' -- The
Rant input (when active) is connected to the output of the K2 T/R switch
when in use, and when the Rant is not being used that point is subjected to
the full output of the base K2 output collector RF voltage - so I would
conclude that it should handle up to 15 watts of RF induced onto the Rant
input jack, but OTOH, I have not tested it.
I was just looking at the circuit and I think you're right. Let's see, 15 watts
in 50 ohms comes out to about 27 volts. I can put a 47 ohm resistor across the
antenna without significant signal loss, so the impedance cannot rise above that
level under any circumstances. The t/r switch diodes will be cut off so there
won't be harmonic generation from this source. Now I just need to measure the
RF voltage with my scope and make sure that this level isn't exceeded (with
plenty of safety factor!)
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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