I've gone thru and set up just like Shane's original post and was able to trigger the transmit radio. It has no audio...just a humming sound. I know he said he went through making lots of abjustments, wish he would have listed the finished layout. ;(

I tried the adjustment screw on the cable...no ...

Pretty sure it's the exact same cable as described here already.

Would not having the jumper plug or a mic prevent it from it from repeating? It receives fine.

I've been trying to build an M1225-M1225 repeater and can not get it to transmit. Can I get you to send me the updated and working code plug to try to figure out what I'm doing wrong.

Note: I've seen one like it on eBay that had a jumper plug in the front of the RX radio. Don't know what it is, but ...