re bandwidth select on am mode re K3

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re bandwidth select on am mode re K3

Fern Rivard



    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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Re: re bandwidth select on am mode re K3

M0XDF
3kHz either side of a carrier = 6kHz
--  
Two things are infinite, the universe and human stupidity.
But I'm not so sure about the universe. -- Albert Einstein.



On 26 Mar 2008, at 17:26, Fern Rivard wrote:

>
>
>
>    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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RE: re bandwidth select on am mode re K3

Darwin, Keith
In reply to this post by Fern Rivard
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: [hidden email]
[mailto:[hidden email]] 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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RE: re bandwidth select on am mode re K3

Darwin, Keith
In reply to this post by M0XDF
Aww, dang nabbit, ya beat me to it David!

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

-----Original Message-----
From: David Ferrington, M0XDF

3kHz either side of a carrier = 6kHz
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Re: re bandwidth select on am mode re K3

M0XDF
LOL
--
A society grows great when old men plant trees whose shade
they know they shall never sit in. -Greek proverb

On 26 Mar 2008, at 17:30, Darwin, Keith wrote:

> Aww, dang nabbit, ya beat me to it David!
>
> - Keith N1AS -
> - K2 5411.ssb.100 -
> - K3 Wave 3 -
>
> -----Original Message-----
> From: David Ferrington, M0XDF
>
> 3kHz either side of a carrier = 6kHz
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