Yes, the Channel Plus 2512A might work. I wonder what is inside and how much current it will pass?
1 GHz bandwidth
• 3.5 dB insertion loss (as a splitter)
• Passes DC IR signals on the coax
• Use as a signal splitter or combiner
• DC and I/R passing
• Provides a 1 GHz bandwidth
• Ideal for antenna and coax operations
If the 2512A is used as a splitter between the preamp and the power inserter, would it be necessary to put a DC block on the output for the second TV?