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[WriteLog] MMTTY and EXTFSK at 75 baud...

To: <N1MMLogger@yahoogroups.com>, <cq-contest@contesting.com>, <rtty@contesting.com>, <writelog@contesting.com>, <MMTTY@yahoogroups.com>
Subject: [WriteLog] MMTTY and EXTFSK at 75 baud...
From: "Robert Chudek - K0RC" <k0rc@citlink.net>
Reply-to: Robert Chudek - K0RC <k0rc@citlink.net>
Date: Sat, 5 Jun 2010 11:04:16 -0500
List-post: <writelog@contesting.com">mailto:writelog@contesting.com>
This is a FYI message...

Operators planning to participate in the 75 Baud contests this weekend and next 
should be aware IF they are using the popular EXTFSK driver, this driver is 
hard coded to transmit at 45.45 Baud. Typically this driver is used to generate 
FSK & PTT keying (not AFSK) by RTTY software, MMTTY in particular.

Dave Bernstein, AA6YQ, verified this (documented) limitation. He maintains the 
MMTTY source code.

How do you know whether you are using the EXTFSK driver? Bring up your software 
configured for a RTTY contest. Look at the bottom of the screen to see if there 
is an EXTFSK 1.05 button displayed on the Windows task bar. If it is shown, you 
are using the driver and will only be able to transmit at 45.45 Baud.

There are many other RTTY packages that will allow 75 Baud TX speeds. If you 
were planning to participate in high speed RTTY, it would be a good time to 
investigate other options if you are currently using the EXTFSK driver.

73 de Bob - KØRC in MN
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