Antenna Tuning Unit

ATU components side

Antenna tuning for PRC677A: front

The silent, microprocessor controlled, antenna tuning unit match the impedance of both short tape or long whip antenna. A direct and reflected power detector control the power amp output ensures reliable operation in any working condition.

ATU solder side

Antenna tuning for PRC677A: rear

This ATU (Antenna Tuning Unit) board uses Johanson high Q piston trimmer capacitor for good match with low RF loss.