[RTTY] Occasional ptt dropout in mmtty/writelog

[Jeff Stai WK6I]

As a data point, I am running WinXP Pro SP2 on an 8-port PCI serial card 
using PTT from RTS on the serial port that also sends the FSK data. The rigs 
are FT1000Ds. Writelog V10.49D with MMTTY, two sound cards, two main 
RTTYrite/MMTTY windows plus two receive clones. I have never seen this problem.


What I -did- see for the first time was that when I hit F4 to send the "%R%C 
TU ..." to complete a run QSO, WL would occasionally hang the transmission 
right after sending the callsign - the message would pause and it would stay 
in TX sending a carrier. I had to hit ESC and resend the F4 buffer.

This has never happened running single radio.

I think that this would happen when I hit ENTER to log the QSO during the 
time between hitting F4 and the buffer getting past the callsign, but I 
haven't done any more yet to try and characterize the issue, or research it.

- jeff wk6i


At 09:55 AM 2/28/2005, David Hachadorian wrote:
>N6DE mentioned this problem in his naqp writeup, and it 
>reminded me that the same thing happened here three times 
>during the 10 hour contest:
>------------------------
>There was one intermittent problem on our second
>station where the PTT would occasionally drop in the middle 
>of a message, but
>our MMTTY window in Writelog kept printing the transmit 
>message as if it still
>still sending it.  I remember seeing this problem at NN6NN 
>for WPX RTTY, but
>still don't know what is causing it.
>-------------------------
>
>My setup is win98se on a Pentium 200, TS-850's with PTT 
>digitally commanded over the rig control RS-232 lines. WL 
>10.46G, MMTTY 1.64B. Any ideas for a solution? I searched 
>the archives, but couldn't find reference to this issue. 

--
Jeff Stai               jds at twistedoak.com
Twisted Oak Winery      http://www.twistedoak.com/
Rocketry Org. of CA     http://www.rocstock.org/
Amateur Radio           WK6I