[UK-CONTEST] AFS

[Clive GM3POI]

As far as I know (Things may have changed) but a SSB transmitter has it's 
operating frequency determined by the Suppressed carrier frequency, Anything 
else is very difficult to measure because of filter widths, distortion 
content etc.
    That is you could operate on 3600 and have 5th or 7th order IMD audible 
way down the band or up the band in the case of 20m. If you don't only 
measure
the carrier frequency you would have to take bandwidth into consideration 
which is a variable, e.g. someone down the road might be spreading 20khz.
73 Clive GM3POI
----- Original Message ----- 
From: "Steve Rawlings" <steve at alg.demon.co.uk>
To: <uk-contest at contesting.com>
Sent: Friday, January 26, 2007 8:13 PM
Subject: Re: [UK-CONTEST] AFS


> Hi Mike
>
> Consideration needs to be given to the bandwidth of the LSB signal.
>
> So the lowest carrier frequency (dial setting) on 80m SSB should be 3603
> kHz to avoid causing interference to the narrow band operators.
>
>
> Regards to all,
> Steve GW4ALG
>
>
> Clive GM3POI wrote:
>
>> Mike that goes for any band edge frequency like 14350 USB. It's the
>> suppressed carrier frequency that counts i.e. 3600. 73 Clive GM3POI
>>  P.S. in the States it's different they count where the signal energy is.
> >
> >
>> ----- Original Message ----- 
>> From: "G3VAO" <G3VAO at hortonbc.demon.co.uk>
>> To: "UK Contest Group" <uk-contest at contesting.com>
>> Sent: Friday, January 26, 2007 2:20 PM
>> Subject: [UK-CONTEST] AFS
>>
>>
>>>Hi All
>>>
>>>Was the station that spent most of the SSBAFS on 3600 operating outside
>>>the contest segment as described in the rules? After all he was using 
>>>LSB.
>>>
>>>Mike
>>>G3VAO
>
>
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