[Elecraft] AM Transmit Bandwidth

[Fred Jensen]

I believe it is constrained to the normal SSB bandwidth of around 3 KHz 
or less, unless using ESSB mode.  However, I'm certainly not the expert 
here.

For US hams, 47CFR97.307 begins:

"(a) No amateur station transmission shall occupy more bandwidth than 
necessary for the information rate and emission type being transmitted, 
in accordance with good amateur practice"

which would sort of preclude SSB much wider than what the K3 normally 
does.  However, I am neither a Commissioner nor a lawyer.

There were a few RCA Ampliphase 1KW AM transmitters made and they 
sounded pretty good in a 10 Kc channel.  One or two might still be 
around and available. :-)  Actually, I don't think RCA invented those.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org

On 3/19/2015 7:24 PM, GRANT YOUNGMAN wrote:
> If the FM filter is assigned to AM transmit, is there any improvement
> in transmit audio bandwidth beyond 3 KHz,or does it remain DSP
> limited to this relatively restricted range?
>
> Grant NQ5T