Yes, you understand correctly i guess the pot was replaced, and works as you describe. The tone pot was also replaced with the switch type, and it switches in an aftermarket calibrator. I am not sure if the RF pot switch is in use, I'm sure I looked during
the recap, but I don't remember .
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The RF gain pot on the SX-71 has no "click", unlike the volume control/a.c. power switch. On the SX-71 and other receivers, the S-meter works properly only when AGC is on and the RF gain control is at
maximum.? The meter reading will, indeed, rise and become inaccurate, as the RF gain is lowered.? Hope I understand your condition...
Jeep K3HVG
On 10/30/2022 3:41 PM Scott Petersen <s-petersen@...> wrote:
Hi, I am wondering if my RF sensitivity control is working correctly, possibly it may have been modified?
When you turn the gain down from the click, the signal seems to be muted from the bottom, as though it is a squelch, while the signal meter will rise to full scale as the gain is lowered. when the control is advanced it mutes the output completely at some pont.
Most radios that I have used the RF sensitivity works similar to a volume control, with the signal meter lowering as the gain is lowered, and the signal and noise level is lowered to the point of not receiving a signal.
Thanks,
Scott
