I would like to know your opinion what are existing solutions for building a small (<5W) UHF TV transmitter. The problem is every circuit or schematics I find already uses separate audio/video input, whereas I already have modulated RF signal coming from a TV modulator like this: https://www.ebay.com/itm/PAL-B-G-Composite-RCA-Video-Audio-To-PAL-B-G-RF-UHF-VHF-CATV-Modulator-/192160908653, so in the end I have 75 Ohm compatible signal already.
So the questions are:
- Can I just hook up something like this https://www.ebay.com/p/533392191 just to transmit signal aerial?
- Do I need to use a wideband amplifier because I also want to use a stereo sound (MTS/NICAM/A2)?
- Wouldn't it be simpler to design RF modulator + amplifier from scratch to overcome aforementioned issues?
Thanks a lot!