Bird 43 Thruline RF Directional Wattmeter

Bird 43 Wattmeter 0.45 MHz - 2700 MHz
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Manual Datasheet

The Bird 43 is a field-proven portable, insertion-type instrument designed to measure both forward and reflected CW power in coaxial transmission lines under any load condition. With a full-scale accuracy of ±5%, it accurately measures RF power with low added VSWR and insertion loss. QC (quick change) type connectors and a full range of plug-in elements provide a wide choice of frequency ranges and power levels giving the Bird 43 amazing flexibility. Two extra elements can be stored in the housing, one on each side. The Bird 43 is easy to use and simple to service in the field.



  • 0.45 MHz - 2700 MHz; 0.1 - 10,000 watts
  • Consists of a line section, "QC" (Quick-Change) type connectors and an indication meter
  • Ordered separately, plug-in elements are necessary for instrument operation



Power Range 100 mW - 10 kW using Bird Plug-in Elements
Frequency Range 0.45 MHz - 2700 MHz
Insertion VSWR with N Connectors 1.05 max. to 1000 MHz
Connectors QC Type (Female N normally supplied)