[RTTY] Re: [WriteLog] Writelog, MMTTY Weird keying problem

[Don Hill AA5AU]

A "9" and "5" must be very similar in Baudot.  I could look it up but I'm
feeling lazy right now.  I see AA9AU a LOT on weak signals coming back
to me on one of my two screens.  If the other decoder shows a "5" I don't
worry about OR if I see someone using the Friend file and I see my name
I don't worry about it.  If I see a "9" in my call on both screens then I request
a correction of my call.

That is the beauty of "dual receive" and the Friend file.

When I print OH1F on 40 and 20, the signal was fluttered both times and 
print was difficult.  I'm not saying that some setting in MMTTY was the cause,
but flutter could have been a major factor in decoding their signal.

73, Don AA5AU

----- Original Message ----- 
From: "arunas vaglys" <arunas at iname.com>
To: <w2up at mindspring.com>; "Timo Pohjola" <timo.pohjola at saunalahti.fi>; <rtty at contesting.com>
Sent: Tuesday, October 07, 2003 12:48 AM
Subject: Re: [RTTY] Re: [WriteLog] Writelog, MMTTY Weird keying problem


> Yes,
> 
> We saw printing LY9 instead LY5 many many times in recent (and previous)
> CQ WW RTTY at LY5A.
> 
> 73 Arunas, LY2ij
> ----- Original Message -----
> From: "Barry " <w2up at mindspring.com>
> Date: Mon, 06 Oct 2003 20:46:04 -0000
> To: "Timo Pohjola" <timo.pohjola at saunalahti.fi>, rtty at contesting.com
> Subject: [RTTY] Re: [WriteLog] Writelog, MMTTY Weird keying problem
> 
> > Timo,
> > My guess is it's propagation causing a missed bit. Maybe some multi-
> > path or polar flutter. I've often noticed 5's get changed into 9's, 
> > which is a shifted second bit (5=10000 and 9=11000). In your case, 
> > 1=10111 and  7=00111, so that is a missed first bit. 8=00110, which 
> > would be a missed first and fifth bit. I suspect you saw OH7 a lot 
> > more than OH8.
> > I don't think it has anything to do with MMTTY or Writelog.
> > 73,
> > Barry W2UP
> > 
> > 
> 
> -- 
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