[Elecraft] An FM Filter working for AM or ??

valvetbone at gmail.com valvetbone at gmail.com
Thu Jan 28 21:47:31 EST 2016


The AM filter will not work for FM.  It's too narrow.

Art. WB8ENE

Sent from my iPad

> On Jan 28, 2016, at 8:53 PM, Doug Hensley <w5jv at hotmail.com> wrote:
> 
> Can someone unravel this for me?   IF the FM filter works for AM, does the AM filter work for FM ?  If not, why not ?  Elecraft says:
> 
> ** AM and FM bandwidth filters are required on the main K3 TX/RX board for TX in AM and FM modes. (Only one AM filter is required for AM TX/RX, and one FM filter for FM TX/RX.) All filters can be used for RX in any mode.
> 
> So,, just what do those of us new to the K3 line need to know when choosing an AM filter ?  Are they saying "Pick your transmit mode and don't worry about the receive mode?"
> 
> 
> This in response to:
> 
> /Message: 7
> /Date: Thu, 28 Jan 2016 14:33:01 -0500
> /From: Art Hejduk <valvetbone at gmail.com>
> /To: Clay Autery <cautery at montac.com>
> /Cc: "elecraft at mailman.qth.net" <elecraft at mailman.qth.net>
> /Subject: Re: [Elecraft] Need a second set of eyes... WAS: Re: Price
> /       Increase Alert for Feb 4th.
> /
> /Clay,
> /
> /The FM filter will work for both AM and FM.  That's what I chose.  Also, I
> /would (did) just get the 400Hz CW filter.
> /
> /73,
> /Art  WB8ENE
> /
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