Convert Aux 1 or 2 Transmitter switch to Potentiometer.

[josephr]

Here's a question for you technical people.

I have a DX7 transmitter and want to change the Aux 1 or 2 switch to a potentiometer.

Is it possible to do?
How can it be done?
What parts are needed?
Does anyone have a diagram of how to do it?

Your help is greatly appreciated. :)

[TomM]

If it was an old non-computer radio, I'd have no problem. But I'm wondering how to bypass the switch value programming. Right now there's a software value you set for "Switch Up" and "Switch Dn". Could you just leave it a 100% and use the pot...I dunno. I'm an RF hardware guy, you need a real bit-head to chime in here.

[josephr]

If it was an old non-computer radio, I'd have no problem. But I'm wondering how to bypass the switch value programming. Right now there's a software value you set for "Switch Up" and "Switch Dn". Could you just leave it a 100% and use the pot...I dunno. I'm an RF hardware guy, you need a real bit-head to chime in here.

Thank you Tom fo the reply, I did not relaise that the computer was controlling things at that level. Like you, my knowledge of the older non comuter controlled style is that it is simply a case of finding the appropriate potentiometer value and connecting the cables. As you could imaging from my question, I need an additional channel where I have proportional control, other than the usual 5 proportional channels being Throttle, Pitch, Elevator, Aileron and Rudder.

Will keep looking, there must be a way. Regards. :)

[David T]

They are just two pole on/off type rocker switches with about 52 steps from one extreme to the other (travel adjust will stretch this number a little). You would need a separate microprocessor to measure a pot and convert that movement into the same number of steps. The micro would then automatically operate two fets to simulate the switch actions.
David.