The M4W is an antenna designed for receiving AM & FM frequencies of MW 525 kHz to 1705 kHz and FM 88 to 108 MHz Originally designed for Buses, where a longer antenna was not possible, It is important to keep in mind that the longer the antenna the better its performance, but there are situations that cannot be avoided, so we have the best performing AM/FM antenna for its short length that can be made. The M4W is a 7mm thick fiberglass antenna that is also available in White, RED, GREEN, BLUE or YELLOW

• Very short antenna suitable for all mounting positions on vehicles

Note - As with all AM/FM antennas it is important that the Base and Cable be the correct type and not RG58 CB coaxial cable