Intermittent dirty relay? Lightning or static damaged the T/R relay? Is
there a cap to ground (30-40 pF) that has shorted or changed value.
The cap is used to cancel out the inductive reactance in the T-R circuit
on 15-6 meters. 6 meters in your amplifier.
Thanks
73
Jim W7RY
On 12/26/2018 9:53 AM, Dick NY1E wrote:
When I arrived back in Florida for the winter, first thing I did was stack my 6
M beams. When I go to operate I find my 1.1:1 match had moved to 51.8 Mhz.
after fooling around with the antennas I eventually went back to the original
single and the SWR was still at 51.8. It turns out the amplifier is causing it
(in bypass mode) I remove the SB-220 (converted to 6M only) and the 1.1:1 is at
50.1 again. Any ideas what could move my resonant point 1.7 Mhz?. It was fine
when I left in the spring....de Dick NY1E
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