[WT-support] DXDoubler SO2R conections

[Denis Pochuev - K7GK]

From: n6tv at arrl.net
Date: Fri, 18 Dec 2009 15:43:31 -0800
To: support at win-test.com; cx6vm.jorge at adinet.com.uy
Subject: Re: [WT-support] DXDoubler SO2R conections
 


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This assumes the DX Doubler jumpers are set for CT/TR/Writelog mode as described on page 6.  Unfortunately, from the DX Doubler manual, it appears that stereo mode (pin 5) only works in NA mode, so automatic headphone stereo control via Win-Test (via Ctrl-Alt-S or AltGr-S) may not work at all with the DX doubler, and you may have to switch your headphones manually (but not your mic. or keyer).  But try it.
...
73,
Bob, N6TV
 





Jorge,

 

You can have the automatic audio switching with WT and DXD. Here is a part of my e-mail to this reflector from a couple of years back with the details.

 

73, Denis - K7GK

 

[WT-support] WT Impressions in CQWW CW

Denis K7GK k7gk at hotmail.com 
Sun Dec 2 22:07:42 CET 2007

...

As I mentioned before, I used DX Doubler (DXD) for SO2R control and WinKey for CW manipulation. Initially, only the basic SO2R functionality was supported by the DXD-WT combination (* key that switches between the radios), but I was keen on the advanced SO2R functionality, particularly automatic and independent RX and TX switching to each radio and SO2R scenarios. After searching through DXD documentation, I discovered it had two modes of operation - CT/TR/WL mode and NA mode, with the first one enabled by default. There are 3 jumpers that select the mode. From the description, it seemed that using NA mode would solve my problems, so I put all 3 jumpers into their new position as described in the DXD documentation. That resulted in the desired RX switching behavior, but not the TX. After consulting with the DXD schematics I changed the configuration to the un-documented one with the first two jumpers in the NA mode, while the 3rd jumper remained in the CT/TR/WL mode. This resulted in the switching I needed with one minor drawback. In this configuration my paddle was only able to key the main radio, not the secondary radio (if selected by the Caps-Lock). I only thought of this towards the end of the contest, but this can be overcome by manually switching the TX to the second radio when using the paddle for fills.
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