NCPR broadcasts throughout the North Country on FM. FM is a truly wonderful ... already has a very good pre-amplifier built in to its circuitry. A "dipole" antenna connected to your radio should ...

The basic circuit is a Schottky diode detector between an antenna and a high-gain audio amplifier driving high-impedance headphones; [Ido] built a variation that also has an LM386 amplifier stage ...

For example, some masthead amplifiers are also distribution amplifiers. Some can also combine television and FM radio signals. If you are experiencing pixellation or picture break up, it may be ...