MFJ-1625 6-80M Balcony Window Antenna with Tuner

The MFJ-1625 Window/Balcony Mount Antenna is a 200 Watt antenna tuner that was designed to provide portable or permanent HF communications on 80 through 10 meters and VHF on 6 meters. The universal  mount design allows the user to install the antenna in many ways. The mount will easily attach to window frames, balconies, and railings. The MFJ-1625 works well indoors mounted to a desk or table as well.

The antenna consists of a whip tuner designed for tuning short whips as well as virtually any random length wire antenna, collapsible whip, universal mount, and counterpoise wire. The operating frequency is found by turning the knobs on the whip tuner and setting them for maximum RF current. The counterpoise wire length can also be adjusted for maximum RF current. The MFJ-1625 Window/Balcony Mount Antenna will allow the operator to get on the air from locations where antenna size is limited.

The whip tuner section uses a reversible “L” network. The advantage of the “L” network is that it has only two tuning controls, and only one tuning solution for given impedance match. The MFJ-1625 has rear panel connectors for coaxial input and a “Hi-Z/Lo-Z” switch for reversing the “L” network. An internal input-isolating current balun provides isolation of DC and RF grounds for optimum tuning of the RF counterpoise.

An RF Current Meter indicates the summed antenna and counterpoise antenna currents, making tuning particularly easy. Simply tune for maximum RF current.