I'm building a low power TV transmitter using rf modulator for my project, I bought an IC MC1374 and doing the circuit presented in the data sheet of the IC, my goal is to have two or more channels, better audio/video quality, wireless, specific channell(3,4)... after constructing the circuit, I tested it using my TV set but I couldn't get a good reception, the audio and video was not so clear as what I xpected, Considering that I used only whip antenna and placed it near the receiver antenna but still I couldn't.I guess I hv to amplify the modulator but how? is there a problem with my transmitting antenna? Or was it with the circuit? Please help me if you hve knowledge about this.. Another problem was that the other channel was tuned to CATV.. Please help me to achv my goal.. Thank you..