Salty
Touchdown! Greaser!
My Nanchang has a nice feature where you can hit a second PTT button to over ride the Vox and talk over the intercom without vox. It's nice in a loud cockpit because you can basically turn the squelch so that Vox is off and not have the annoying hissing, and use the button when you want to talk.
But, I can't figure how how the heck it's wired up to work like it does. I have a SPA-400 intercom and the feature clearly works, but there's no indication on the intercoms wiring diagram how you would make it work that way. I have no idea where the button is wired up to. Trying to understand how it works. There are 3 wires coming off the switch, 1 is to ground, the other two, I have no idea where they go.
But, I can't figure how how the heck it's wired up to work like it does. I have a SPA-400 intercom and the feature clearly works, but there's no indication on the intercoms wiring diagram how you would make it work that way. I have no idea where the button is wired up to. Trying to understand how it works. There are 3 wires coming off the switch, 1 is to ground, the other two, I have no idea where they go.