I had a similar problem with my KX3. My problem included no
receive. The upshot was that the KX3 had been dropped and the
antenna BNC connector had been pushed in just a little. The
clearances are quite tight there, and the antenna BNC was
shorted. I bent the case back into shape, removed the antenna
connector, and fixed the short. Everything works again.
BTW, the schematic doesn't show the antenna low pass filter. I
had to look at the circuit board to be sure that when I was
reading zero ohms resistance across the antenna jack, I was not
reading an inductor. With the jack disconnected from the board,
the resistance should be infinity, or at least very high. (When
it is connected to the board, the resistance is very low.)
73 Bill AE6JV
On 3/27/15 at 11:25 AM,
[hidden email] (George via
Elecraft) wrote:
>No longer matches any antenna. I press ATU tune and hear
>relays working. While relays click I see 3 watts on led and
>swr stays at 25.4. Does not matter what antenna I use. If I
>bypass tuner and connect a dummy load it shows 25.4 to 1 swr
>also. Planning a trip soon so need it working. Thanks 72
-----------------------------------------------------------------------
Bill Frantz | Concurrency is hard. 12 out | Periwinkle
(408)356-8506 | 10 programmers get it wrong. | 16345
Englewood Ave
www.pwpconsult.com | - Jeff Frantz | Los Gatos,
CA 95032
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