Bird 43 Thruline Wattmeter

Bird’s General Purpose Mole 43 Series Thruline® Wattmeter

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SKU: 43 Category:


Calibration, inspection, cleaning, and/or repair may be available for this item.

Product Overview: Bird 43 Thruline Wattmeter


  • Accurate CW field power measurement over 450 kHz to 2.7 GHz and 100 mW to 10 KW.
  • Uses industry standard Bird elements with space to store 2 additional within the meter housing.
  • Rugged metal housing for the most demanding environments.
  • Quick Change (QC) connectors to minimize the need for adaptors when making critical measurements.


The Bird Model 43 THRULINE® Directional Wattmeter 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 Model 43 amazing flexibility. Two extra elements can be stored in the housing, one on each side. The Model 43 is easy to use and simple to service in the field.
4300-400 – Conversion Kit for Model 43 Wattmeter
Quick Change Solderless Connectors – QC-Type ‘Quick Change Solderless’ RF Connectors
Support Tools:
Declaration of Conformity
Operation Manual

Product Specifications:

Accuracy: ±5% of full scale
Connector: QC Type (Female N normally supplied)
Finish: Light gray powder coat
Frequency Range: 450 kHz to 2.7 GHz (depending on elements)
Insertion VSWR: with N connectors 1.05 max. to 1000 MHz
Nominal Size: 6 7/8′ H x 5 1/8′ W x 3 5/8′ D (175 x 130 x 92 mm)
Power Range: 100 mW to 10 kW using Bird Plug-In Elements
Weight: 3 lbs. (1.4 kg)

Bird 43 Thruline Wattmeter Calibration

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Calibration, inspection, cleaning, and/or repair may be available for the Bird 43 Thruline Wattmeter. Click to inquire about our calibration or other services.