[RTTY] EU1SA, AA6YQ profiles in MMTTY

[Jeff Blaine]

Hi Dave,

May I know if there is another profile available that is optimized for 
weak signal work?

Meaning the settings are providing the maximum ability to deal with low 
SNR conditions.

THanks

73/jeff/ac0c

Dave AA6YQ wrote:
> See
>
> <http://lists.contesting.com/pipermail/rtty/2009-January/027738.html>
>
>     73,
>
>         Dave, AA6YQ
>
> -----Original Message-----
> From: BIll Duffy [mailto:bjduffy at cox.net]
> Sent: Sunday, January 25, 2009 8:46 PM
> To: Dave AA6YQ; RTTY Reflector
> Subject: Re: [RTTY] EU1SA, AA6YQ profiles in MMTTY
>
>
> How does one access these profiles?
> ( I know it's a dumb question.....but how will I learn if I don't ask?)
> Bill
> KA0VVXK
> ----- Original Message -----
> From: "Dave AA6YQ" <aa6yq at ambersoft.com>
> To: "RTTY Reflector" <rtty at contesting.com>
> Sent: Sunday, January 25, 2009 7:17 PM
> Subject: Re: [RTTY] EU1SA, AA6YQ profiles in MMTTY
>
>
>   
>> Thanks, Vladimir, I'm glad we have connected.
>>
>> While you may have developed the EU1SA profile for contesting, I have
>> found
>> it quite helpful when DXing. As most of the entities I still need on RTTY
>> are rare, the ability to decode when multiple signals are present is
>> (unfortunately) useful.
>>
>>   73,
>>
>>        Dave, AA6YQ
>>
>>
>>
>> -----Original Message-----
>> From: rtty-bounces at contesting.com [mailto:rtty-bounces at contesting.com]On
>> Behalf Of Vladimir Sidorov
>> Sent: Sunday, January 25, 2009 7:15 PM
>> To: RTTY Reflector
>> Subject: Re: [RTTY] EU1SA, AA6YQ profiles in MMTTY
>>
>>
>> Dave,
>>
>> As I am quite familiar with the profile (see my signature), let me add a
>> couple of words to the discussion.
>> The "EU1SA" profile is mostly not about decoding, but first of all, it's
>> about extra filtering. It makes the MMTTY RX bandwith exactly matching the
>> RTTY signal. The brickwall DSP filter with sharp skirts cuts everything
>> off
>> but the desired signal. It is clearly seen at the tuning indicator. With
>> such a set up you can even use wide SSB filters and still have pretty nice
>> results overall. Obviously if you use other filters, as well, it makes the
>> overall selectivity even better.
>>
>> Yet another positive aspect of that is the tuning easiness. It comes from
>> the fact that only one and only signal matches the bandwith. The moment
>> you
>> tuned to a station, the signal is already readable/decodable and you only
>> need a bit of fine tuning, if any.
>>
>> As you can see, this profile is mostly just another contesting tool. It
>> helps quick tuning and easy decoding regardless adjucent QRM. And still,
>> it
>> provides the decoder with a narrower bandwith to process, virtually one
>> signal a time.
>>
>> 73,
>> Vladimir VE3IAE aka EU1SA
>>
>> ---
>>
>>
>>
>>
>> ----- Original Message -----
>> From: "Dave Hachadorian" <K6LL at ARRL.net>
>> To: "RTTY Reflector" <rtty at contesting.com>
>> Sent: Sunday, January 25, 2009 5:07 PM
>> Subject: [RTTY] EU1SA, AA6YQ profiles in MMTTY
>>
>>
>>     
>>> I just tried those two profiles, listening to FM1FV run a
>>> pileup on 14084. Neither profile copied as well as the
>>> standard rtty profile, which I had running in a separate
>>> window. Are the EU1SA and AA6YQ profiles supposed to be used
>>> under special circumstances only?
>>>
>>> Dave Hachadorian, K6LL
>>> Yuma, AZ
>>>
>>>
>>> _______________________________________________
>>> RTTY mailing list
>>> RTTY at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/rtty
>>>       
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