[Elecraft] Re: AGC adjustment

[John Huffman]

> The approach I take is:
>
> 1. With an antenna connected, switch to a "quiet" band (one with light
> atmospheric background noise, e.g. 15 m at night). Tune to a place with no
> incoming signal.
>
> 2. Turn AGC OFF (using PRE/AGC + AGC as explained on page 97 of the
manual). If
> the background noise level increases dramatically with AGC off, the AGC
> threshold is probably set too aggressively. A lower voltage setting, as
measured
> at pin 5 of U2 on the Control board, might be more appropriate. I'd try
3.5 or
> 3.6 V for starters. (Note: when adjusting the AGC threshold, disconnect
the
> antenna. Otherwise incoming signals could make it harder to adjust.)

I get 3.458V with this setting of R1.  My question, does setting the AGC
threshold voltage too low affect the performance of the noise blanker?

73 de NA8M
John