SB-301 bfo adjustment

[Robert Groh]

Thanks, Stu, that is one heck of a nice article. I saved it for future use. Hat's off to the original authors also ( Mark, WB8JKR, and Lenny, WB8JCJ) for their efforts - super job, guys.

73
Bob, WA2CKY


W6CUX <w6cux at EARTHLINK.NET> wrote: Al,
Look on pages 7-8 of this document:
http://members.tripod.com/NRWILLIAMSON/Hw101.pdf

This data is available other places but the one shown was the first one 
I found. The discussion relates to a HW-101 but applies directly to a 
SB-301 BFO.

73, Stu W6CUX

Schichler, Alfred wrote:

>I know this has been brought up before, but I can't find the information on
>changing the BFO frequency to get the same pitch background noise in USB and
>LSB on my SB-301. I was going to fix it a while back, but never got around
>to it.
>I think there is a mod that tells you how to do that, like installing a
>trimmer cap or something like that. The pitch is higher on LSB than on USB,
>so I think the BFO frequency might be too low (too far from the filter's
>center freq on LSB, and too close on USB).
>
>Any mods or other info on this would be appreciated.
>
>Thanks,
>Al, WA2AS
>
>  
>

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