[RTTY] What causes RTTY with longish character spacing?

[wa5zup]

I use FSK with no issues with limiting speed setting.
I was talking about running
When the conditions right, there is one station after another, that only
lasts so long.  If you do not make the best use of that time to complete the
contact, you are loosing points.  That is pretty fundamental in contesting.

-----Original Message-----
From: rtty-bounces at contesting.com [mailto:rtty-bounces at contesting.com] On
Behalf Of Joe Subich, W4TV
Sent: Tuesday, September 29, 2009 6:28 PM
To: 'wa5zup'; 'RTTY Reflector'
Subject: Re: [RTTY] What causes RTTY with longish character spacing?



> I use Writelog/MMTTY.
> Why would you not use the limiting speed setting then?

Yes, you should be using "limiting speed" with MMTTY. 

> I have tried the Strict BPS setting and it was distinctly 
> slower. 

It is slower but not excessively slow considering that the 
alternative is a major problem (early PTT drop, buffer 
issues, etc.) for FSK users. 

> In a big contest like last weekend, it would mean many 
> contacts lost due to the longer time to get through each 
> contact.

"Longer time to get through each contact" is only a 
factor if you are running and never have to call CQ 
more than once.  If you don't have someone tail-ending 
every QSO, the time to complete a QSO is no longer a 
limiting factor as you have "slack" time. 

73, 

   ... Joe, W4TV 
  


> -----Original Message-----
> From: rtty-bounces at contesting.com 
> [mailto:rtty-bounces at contesting.com] On Behalf Of wa5zup
> Sent: Tuesday, September 29, 2009 7:43 PM
> To: 'RTTY Reflector'
> Subject: Re: [RTTY] What causes RTTY with longish character spacing?
> 
> 
> I use Writelog/MMTTY.
> Why would you not use the limiting speed setting then?
> I have tried the Strict BPS setting and it was distinctly 
> slower.  Real similar to what I have heard on the air. That 
> simply would not do.  In a big contest like last weekend, it 
> would mean many contacts lost due to the longer time to get 
> through each contact. John wa5zup
> 
> -----Original Message-----
> From: rtty-bounces at contesting.com 
> [mailto:rtty-bounces at contesting.com] On Behalf Of Joe Subich, W4TV
> Sent: Tuesday, September 29, 2009 5:27 PM
> To: 'Jim Reisert AD1C'; 'RTTY Reflector'
> Subject: Re: [RTTY] What causes RTTY with longish character spacing?
> 
> 
> 
> Jim, 
> 
> > Every now and then during a RTTY contest, I hear a station
> > that sounds like they are typing the characters as they go, 
> > such that the letters get printed more slowly than if they 
> > had been sent out automatically (in one "burst").  But the 
> > spacing between the letters is too regular for it to be just 
> > someone typing in real-time.
> 
> I believe those stations have (accidentally?) moved the 
> "Char wait" and/or "Diddle Wait" sliders in MMTTY from 
> the left most positions.  If I recall correctly, "Char 
> Wait" will add extra space between characters. 
> 
> The comments pointing to "Strict BPS" in microHAM Router 
> are off the mark.  "Strict BPS" will slow down the RTTY 
> marginally as the Eltima Driver used in Router treats all 
> data as 8-bit codes (start, 8 data bits, one stop bit) ... 
> this results in Baudot/ITA2 (a 5 bit code) which normally 
> consists of 7.5 bits (start, 5 data bits, 1.5 stop bits) 
> being sent with 10 bits (start, 5 data bits and 4 stop 
> bits).  "Strict BPS" is only needed with some software 
> (like Writelog's RTTYrite or MMTTY without the "Limiting 
> Speed" setting) that does not pace character output in 
> FSK. 
> 
> 73, 
> 
>    ... Joe, W4TV 
>   
> 
> 
> 
> > -----Original Message-----
> > From: rtty-bounces at contesting.com
> > [mailto:rtty-bounces at contesting.com] On Behalf Of Jim Reisert AD1C
> > Sent: Tuesday, September 29, 2009 3:27 PM
> > To: RTTY Reflector
> > Subject: [RTTY] What causes RTTY with longish character spacing?
> > 
> > 
> > Every now and then during a RTTY contest, I hear a station
> > that sounds like they are typing the characters as they go, 
> > such that the letters get printed more slowly than if they 
> > had been sent out automatically (in one "burst").  But the 
> > spacing between the letters is too regular for it to be just 
> > someone typing in real-time.
> > 
> > Assuming no one is still using old (pre-computer) hardware,
> > what accounts for this?
> > 
> > 73 - Jim AD1C
> > 
> > --
> > Jim Reisert AD1C, <jjreisert at alum.mit.edu>, 
> > http://www.ad1c.us _______________________________________________
> > RTTY mailing list
> > RTTY at contesting.com 
> http://lists.contesting.com/mailman/listinfo/rtty
> 
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