In AM, both side bands have to fit through the filter so you're audio
bandwidth is actually half of the RF bandwidth.  With SSB, since there
is only one sideband, you get audio bandwidth which is equal to the RF
bandwidth.

SSB - 6 KHz filter gives 6 KHz audio bandwidth.
AM (2 side bands) - 6 KHz filter gives 3 KHz audio bandwidth.

- Keith N1AS -
- K2 5411.ssb.100 -
- K3 Wave 3 -

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Fern Rivard
Sent: Wednesday, March 26, 2008 1:26 PM
To: Elecraft Reflector
Subject: [Elecraft] re bandwidth select on am mode re K3




    On my K3, on ssb mode,  I can select the wide am filter position but
if I go to the AM mode, the widest bandwidth shown on the display is 3
khz! Should it not go to 6 khz as I do have that filter installed and it
works on the ssb and other modes except for the AM mode.  Any
clarification or help with this would be greatly appreciated.
    Thanks from Fern


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