Just to make it clear to everyone, the ability of reverse operation is 
not something new with software based digital modes but has been 
possible for some time, even with hardware equipment ... by flipping the 
reverse switch or issuing a software command to the hardware after we 
got to the TU's in the box with AEA and Kantronics, et al.  Many of the 
"old" stuff had a reverse position at least for the demodulator. The 
ST-5 had a reverse switch and that goes back to at least 1973. And the 
Mainline STL FSK demodulator had one a decade earlier than that. I have 
used some of the old tube TU's (borrowed) when I first got on RTTY. Of 
course the main interface was my Model 15:)

The main problem with operating reverse would be that your dial 
frequency would be different from most other operators.

If you wanted to work EU or other stations using low and/or reversed 
tones, you would have used this feature.

Rick, KV9U


Mark Miller wrote:

>Yep, it is probably one of those things that was set in concrete and 
>never changed.  But it really doesn't matter how you want to do it as 
>long as Mark is the higher RF frequency, since that is the frequency 
>you give as your operating frequency for RTTY.  Now programs like 
>MixW allow you to stay on USB if you want.  If you have to set your 
>rig for lower sideband, it has that option too.
>
>  
>



Need a Digital mode QSO? Connect to  Telnet://cluster.dynalias.org

Other areas of interest:

The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol: http://groups.yahoo.com/group/Digipol  (band plan policy discussion)

 
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