[Elecraft] KPA500 troubles

Jim Brown jim at audiosystemsgroup.com
Thu Nov 12 17:12:11 EST 2015


On Wed,11/11/2015 1:30 PM, Wes (N7WS) wrote:
> If I use an inductively-loaded vertical monopole with a minimal ground 
> screen over Arizona ground my "dBd gain" might well be several dB 
> negative. In which case, I'm allowed to compensate for that, and line 
> loss, in determining amplifier output power.  In that, and many other 
> events, a 100W transceiver is inadequate, ergo, a KPA500 is not out of 
> the question. 

Your point is, of course, well taken, Wes. BUT -- there's a certain 
vagueness to the FCC definition, in that it does not specify mounting 
height of the reference dipole, making comparisons to a vertical 
antenna, which relates to mounting height quite differently, at least a 
bit squishy.

73, Jim K9YC




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