[ct-user] "Stutter" in transmitted CW

[Keith Beebe]

In my case it's a Yaesu FT-990 if that's helpful for another reference..

Thanks Ken for looking into this. I also appreciate the many comments from others
on the reflector.

We await the next version.

73 de Keith Beebe W3KB


Ken Wolff wrote:

> CT9.37 has gone to full duplex on the COM ports. That means CT will send and
> receive simultaneously on the RS232 lines. Based on this, I think the 1000D
> (and others) can't handle RS232 send, RS232 receive and CW sending
> simultaneously.
>
> I now need to interlock CT to stop sending while data is arriving.
>
> - Ken
>
> ***************************
> Ken Wolff  K1EA
> K1EA@contesting.com
> ***************************
>
> -----Original Message-----
> From:   MT [mailto:mrtoburen@sprintmail.com]
> Sent:   Wednesday, November 11, 1998 2:31 AM
> To:     'Ken Wolff'
> Subject:        RE: [ct-user] "Stutter" in transmitted CW
>
> I believe I was running from "real" DOS by selecting the "Restart in MS-DOS
> Mode" from Windows 98.  I should have added to my original post that I was
> keying with my Vibroplex paddle using the rig's internal keyer.  I did not
> have CT hooked up to key the rig.
>
> -----Original Message-----
> From:   Ken Wolff [SMTP:K1EA@contesting.com]
> Sent:   Tuesday, November 10, 1998 12:48 AM
> To:     MT
> Subject:        RE: [ct-user] "Stutter" in transmitted CW
>
> Were you running in a DOS box under Windows, or "real" DOS?
>
> Thanks - Ken
>
> ***************************
> Ken Wolff  K1EA
> K1EA@contesting.com
> ***************************
>
> -----Original Message-----
> From:   owner-ct-user@contesting.com [mailto:owner-ct-user@contesting.com] On
> Behalf Of MT
> Sent:   Tuesday, November 10, 1998 4:48 AM
> To:     'Hans Brakob'; ct-user@contesting.com
> Subject:        RE: [ct-user] "Stutter" in transmitted CW
>
> I definitely had the same problem with CW stuttering.  I did not realize it
> until several hours into CW SS.  I thought that everyone was getting rusty
> receiving CW -- Hi Hi.  Once I figured out the problem, I had to disable
> radio polling to get the stuttering stopped.  Later in the contest, after
> the problem was fixed, a half dozen dupe stations called me.  It seems they
> must have incorrectly copied my call due to the stuttering!!!
>
> I was running 9.37, FT1000D, and Pentium II - 400.
>
> -----Original Message-----
> From:   Hans Brakob [SMTP:k0hb@juno.com]
> Sent:   Monday, November 09, 1998 1:39 PM
> To:     ct-user@contesting.com
> Subject:        [ct-user] "Stutter" in transmitted CW
>
> Switched from v9.31 to v9.37 just before SS.
>
> Never seen in previous versions, but 9.37 seemed to sometimes
> "stutter" on sent CW characters.....
>
> Not consistently, but often enough to be bothersome, it would mangle
> a character by inserting a "mini-pause" between character elements...
>
> ...for example the number "0" might sound like "MO" because of a
> little glitch between the 2nd and 3rd dash, or "B" might be sent
> as "NI".  The pause is not enough for a "full" character break, but
> definitely confusing.  On average, I'd say the "stutter" occured
> once every 10-15 QSO's.
>
> I've used v8.xx, 9.20, 9.21, 9.31, and now 9.37.  This problem was
> NOT in these earlier versions I have used on this same computer
> (a venerable Compaq 486-33).
>
> 73, Hans, K0HB
>
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