[Dx4win] 2nd Radio problem with 7.05.04 -- Anyone else?

[Randy Farmer]

Am I STILL the only one who has problems making 7.05.04 communicate 
with the second radio?

I just installed version 7.05.04 and everything seems to be working 
correctly except the support for a second radio. Switching to the 
second radio using either the menu selection or the Ctrl-Shift-F12 
shortcut fails to establish communication with the radio.

My setup is: WinXP Home, SP3 on a 3 GHz Pentium 4 with 2 GB Memory. 
Radio 1 is a Yaesu FT-1000D connected via virtual port COM5 from a 
microHAM MicroKEYER II / Station Master combination. Radio 2 is an 
Icom IC-746 connected via physical port COM8  from a microHAM Band 
Decoder. The rig file in use for the FT-1000 is the shipping file. 
The rig file for the 746 is a modified version that sets the default 
CW mode to CW-R with a narrow filter. Radio selection is accomplished 
by a Top Ten Devices DX Doubler controlled via the LPT port pin 14 control bit.

This setup works perfectly with 7.04. With 7.05, switching to the 746 
immediately switches the audio as expected, but after a few seconds I 
get a timeout, the audio switches back to Radio 1 and an "Interface 
Disabled" message box appears. Executing a "Start radio" command 
results in the same behavior. I can see DX4WIN trying to talk to the 
radio; the selected band indicator on the Band Decoder flashes 
several times at each polling attempt. Connection is never 
established. With no changes in hardware or rig files (the same 
modified 746 file is in the Radio subdirectory for each version), 
shutting down 7.05 and starting 7.04 results in flawless operation.

Has anyone else noticed this problem? It appears that something in 
the changes to the radio handling logic made in the new version has 
broken the second radio communications, at least for Icom radios.

73...
Randy, W8FN