[RTTY] MMTTY AFC Bug
Dick Flanagan
dick at k7vc.com
Sun Jan 9 13:00:41 PST 2011
The AFC button turns itself off and I have to click it back on.
Dick
At 08:36 AM 1/9/2011, Joe Subich, W4TV wrote:
>
>> I'll be running, give my exchange and then suddenly I can't find the
>> other station. I notice that AFC has slipped off,
>
>Are you sure AFC is turning off (being disabled) and not retuning
>due to an interfering signal or noise? I've long noticed AFC will
>"move" the receive frequency in response to noise with or a strong
>"adjacent channel" signal.
>
>The AFC behavior is another reason that I use FSK and keep AFC OFF.
>I do all my tuning with the main knob (in "S&P") or RIT (in "Run").
>In my opinion, AFC is a waste of code. However, if you *MUST* use
>it, set the SQ parameter higher (reduce the chance of tuning on
>noise or weak interfering signal), set sweep to 0.5 to limit the
>tuning range and increase Time to slow its action.
>
>73,
>
> ... Joe, W4TV
>
>
>On 1/9/2011 7:37 AM, Dick Flanagan wrote:
>> I am running MMTTY 1.68A with the latest Writelog. I'll be running,
>> give my exchange and then suddenly I can't find the other station. I
>> notice that AFC has slipped off, punch it back on and stumble
>> on. I'm wondering if there is a limit to how far the AFC can pull a
>> signal without turning itself off. This happens regularly, at least
>> once or twice an hour. Needless to say, it causes a serious kink in
>> my rhythm every time it does that.
>>
>> I'll have more after the RU and I've had a chance to get some *real*
>sleep! :)
>>
>> Dick
>>
>> At 11:35 PM 1/8/2011, Dave AA6YQ wrote:
>> >>>>AA6YQ comments below
>> >
>> >-----Original Message-----
>> >From: rtty-bounces at contesting.com [mailto:rtty-bounces at contesting.com]On
>> >Behalf Of Dick Flanagan
>> >Sent: Sunday, January 09, 2011 2:18 AM
>> >To: RTTY contest group
>> >Subject: [RTTY] MMTTY AFC Bug
>> >
>> >
>> >Is there a fix for MMTTY randomly turning AFC off?
>> >
>> >>>>Yours is the first report of this behavior I recall seeing, Dick. How
>> >frequently is this happening? Are you running MMTTY
standalone, or as part
>> >of another application? What version of MMTTY are you running?
>> >
>> > 73,
>> >
>> > Dave, AA6YQ
>>
>> --
>> Dick Flanagan K7VC
>> dick at k7vc.com
>> _______________________________________________
>> RTTY mailing list
>> RTTY at contesting.com
>> http://lists.contesting.com/mailman/listinfo/rtty
>>
>_______________________________________________
>RTTY mailing list
>RTTY at contesting.com
>http://lists.contesting.com/mailman/listinfo/rtty
--
Dick Flanagan K7VC
dick at k7vc.com
More information about the RTTY
mailing list