[RTTY] EU1SA, AA6YQ profiles in MMTTY

[Dave AA6YQ]

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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