SB-301 bfo adjustment

[Schichler, Alfred]

Thanks for the info. The HW-101 BFO frequencies are the same as the SB-301,
so the BFO mod should work.
I plan on trying that as soon as I get some free time. I'll check out the
S-meter stability mod also. That might be applicable to the SB-301, but I'm
not sure.

Al, WA2AS

-----Original Message-----
From: W6CUX [mailto:w6cux at earthlink.net]
Sent: Thursday, November 16, 2006 1:59 PM
To: Schichler, Alfred
Cc: HEATH at LISTSERV.TEMPE.GOV
Subject: Re: [HEATH-TEMPE] SB-301 bfo adjustment

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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