4520 Series Thruline Directional Panel-Mount Wattmeters

The Bird 4520 Series RF THRULINE Directional Wattmeters are 19? panel-mounted versions of the standard Model 43 for rack installation. The series includes: ? 4521 ? 1 meter, 1 element ? 4522 ? 1 meter, 2 elements with Forward/Reflected switch ? 4526 ? 2 meters, 2 elements for simultaneous viewing of forward and reflected power.