The method is simple and straight-foreward. You woud not belive me unless I posted details.
Granted that a custom pc board takes close to four hrs to burn but this is assuming that you do not need to hide the tap and you can use a generic board. This circuit will, theoretically, have serious problems when frequency, amplitude and...arggh..i cant remember the third type of modulation..ahh anyway when all three types of modulation are used it experiences problems. It, theoretically, works great with digital and even acts as a repeater so with long connections it would probably improve the speed.
The wires have to be electronically cut, then both ends stripped and connected to the couplings. Also note that unless you have a way to configure your mux the same as the other two, the output will look scrambled most of the time. The ideal connection would be baseband that is a few miles long. I didn't say it is perfect.
