SB-301 AM tuning

[Gerald C. Lemay]

I'm not sure if you really do have a problem but be aware that the AM
filter on the SB series receivers is very sharp. In fact, too sharp for
good AM reception. When you tune across an AM signal, it will sound very
bassy and muddy until you tune off to one side a little bit. The SB-310
had a much better filter. This topic was covered here before. someone
had info on how to build one.

Joseph Filice wrote:

> Hi,
>
> When tuning AM signals with my SB-301 (the AM filter
> is installed), if I tune to the center frequency of the
> signal, the audio is somewhat distorted.  If I tune off
> a kilocycle or so to either side, it sounds much cleaner.
> Is this a known "feature" of the SB-301 in the AM mode,
> or could I have a problem with the filter, detector or
> something related?  Thanks.
>
> Joe Filice KQ6GL