Total posts : 45366
Ok, here are my comments.
The RS amplifier is intended to amplify very weak signals to a level that is acceptable for a TV receiver. The amplified output level is very low (because modern TVs are already very sensitive). Driving the RS amp with a transmitter will grossly overload it unless you attenuate the transmitter feed. The output of the amp will be very low (within the range of a TV’s antenna input). Not very promising! Your transmitter alone will probably go farther.
However, the reply about CATV distribution amplifiers has some merrit! These amps are probably offered over a broad range of power outputs. The higher powered ones would be designed to drive a very long coax run terminating in a large number of destinations. The power output would be sized to produce a good signal after all the huge losses. This type of amp seems be the best bet for really boosting power to cover a large area. You may still need to attenuate your transmitter output feeding one of these, but the radiated signal should be good.