[Elecraft] K3 FM filter required for full AM receive width

Dave Martin dave.w5dhm at gmail.com
Mon May 5 12:00:48 EDT 2008


On 5/5/08, Jerry Flanders <jeflanders at comcast.net> wrote:
> Sounds good for SWL. Only downside (a minor one, IMO) is that you might get
> response from images 30 KHz away. How much weaker is a signal when you tune
> to its image 30 KHz up/down?
>
>  Jerry W4UK
>
I can't hear anything, Jerry, even from our local jukebox station at
40 over.  But I was thinking that the two pole filter following the IF
amp might be enough to minimize any problem.  I had some fun building
the filter, and it's saved me some money until I decide if I want to
order something else.

Dave  W5DHM


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