[Elecraft] Antennas and Output Power - KPA-1500

john at kk9a.com john at kk9a.com
Thu Oct 15 20:06:58 EDT 2020


Do you use both antennas on the same frequency?  I do not have a KPA1500 but
I am curious how the tuner can remember the two different settings and know
which trained setting to use when you switch antennas. (assuming that you're
not also changing frequency).

John KK9A 

N4ZR wrote:

I have two antennas for 40M, a Carolina Windom and a full-wave parasitic 
sloper, the latter fed through a 4:1 balun.  The 1500's tuner handles 
both antennas nicely, and I have trained it on both of them, but when I 
switch from the Windom to the sloper (on an external antenna switch), 
the output power changes from ~1400 watts to nearly 1700, often 
triggering a high current fault. 

-- 
73, Pete N4ZR




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