Airtronics RD6000 need interface help

[bob95065]

I have a Airtronics RD6000. I made a cable for the tariner socket that plugs into my computer's sound card. I installed SmartProPlus and tried to get the radio to work. I am running Windows XP on both my desktop and laptop.

My desktop got no signal at all on the PPM thermometer that was on the SmartProPlus web site. I decided to try my laptop.

I played with the settings and got erratic lines for about 30 seconds then nothing. I tried to calibrate the radio in FMS and the lines jumped around out of control.

Does anyone have any suggestions?