If they have NET on as well as AFC, they should be "on frequency" ...
for AFSK only, not FSK.
73,
~iain / N6ML
On Wed, Oct 3, 2012 at 8:33 PM, Gary AL9A <al9a@mtaonline.net> wrote:
> Bill,
>
> Wouldn't the S&P station with his AFC on also affect those running AFSK, not
> just FSK?
>
> 73,
> Gary AL9A
>
>
> ----- Original Message ----- From: "Bill, W6WRT" <dezrat1242@yahoo.com>
> To: "RTTY Reflector" <rtty@contesting.com>
> Sent: October 03, 2012 7:03 PM
>
> Subject: Re: [RTTY] Rude contesters
>
>
>> ORIGINAL MESSAGE:
>> On Wed, 3 Oct 2012 19:43:39 -0700, WU6W wrote:
>>
>>>
>>> You guys just answered a question I have had -- how do some guys, not too
>>> many but one or two, answer my CQ's W-A-Y off frequency.. Like in this
>>> day
>>> and age of digital !! Yea - 40 years ago it was easy to do !
>>> I run FSK, so they must be running AFSK or on the wrong sideband or both
>>> ???
>>> They are so far off the only reason I look for them is the timing of the
>>> off
>>> freq signal - I figure it's got to be a reply and sure enough, there they
>>> are. One day I suspect I'll run out of RIT !
>>>
>>> Rick - WU6W
>>
>>
>> REPLY:
>> One of the major causes of off-frequency stations is misuse of AFC. A
>> common
>> scenario is this: The S&P station is running FSK but has AFC on. As he
>> tunes
>> across the band and gets near the CQ station, his AFC "reaches out" and
>> locks in
>> the CQ station. Since his tuning indicator now shows proper tuning, he
>> stops
>> turning the VFO knob. The problem is, his TX freq is NOT locked in and is
>> still
>> lagging behind.
>>
>> Another contributing factor when using MMTTY is failing to reset the tones
>> to
>> default when turning AFC off. If you watch MMTTY's tone frequency with AFC
>> on
>> but no signal being received, you will see it wander around several Hz. If
>> you
>> simply turn off AFC and the tones have wandered off the default, that's
>> where
>> they stay. The point is, when turning AFC off you MUST ALSO click the
>> "HAM"
>> button to reset the tones. If you are running N1MM logger, there are check
>> boxes
>> in the DI setup that can do this for you automatically.
>>
>> 73, Bill W6WRT
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>
>
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