Can I have the best of both worlds, F-Type connection and wireless?

[Electronic M]

I run 4 channels of wireless agile modulator simultaneously could easily do 5-8, but I would need to build more programming sources to make that worthwhile (there really isn't anything I care to watch over the air locally).

Using a single transmit antenna or an off the shelf antenna to transmit isn't a good idea IMO. I use 4 separate home made half-wave dipoles made from a F-type connector and lamp Cord for VHF.

What I would do if I was in your shoes is set up 6 transmit antennas directly connected to their respective modulators, remove the combiner from the system completely, hook the input of the splitter to a variable gain antenna preamp and a receive antenna placed fairly close to the transmitter antennas then adjust the position of the antenna and amp gain to duplicate the wired system performance.

You're going to have a much harder time trying to get good transmitters if you split output between wired and wireless systems or try to use a single transmit antenna, and also leave the system more open to systemic failure.

I've explained my antenna system so many times on videokarma that my sore fingers want you to look one of those up so I don't have to write it again.