Bird - The RF Experts

450 kHz - 2.7 GHz, RF Wattmeter with Peak Reading Option

The 43P is a Model 43 Wattmeter with a Peak Reading Kit installed that allows true peak power output at ± 8% of full scale, 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 43P amazing flexibility. Two extra elements can be stored in the housing, one on each side. The 43P is easy to use and simple to service in the field.

  • 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 adapters when making critical measurements
product specifications:
Item No
Item Name
General Purpose Wattmeter with Peak Reading Option
Power Range
100 mW to 10 kW using Bird® Plug-in Elements
Frequency Range
450 kHz - 2.7 GHz (depending on element)
CW Mode: ± 5% full scale, Peak mode: ± 8% full scale
Normal voice audio; or (Peak Mode) Rectangular Pulses Duty cycle: 2% (min)
Repetition rate: 100 pps (min), Pulse width: 200 µs (min)
QC Type (Female N normally supplied)
Battery Life
48 hours typical
Light Gray Power Coat
(H x W x D)
6-7/8" x 5-1/8" x 3-5/8"
175 x 130 x 92 mm
4 lbs. (1.8 kg)
compatible devices:
Table 1 - Standard Elements
7/8" Line Section - Standard Elements
Table 2 - Low Power Elements
7/8" Line Section - Low Power Elements
Table 3 - High Frequency Elements
7/8" Line Section - High-Frequency Elements, Entire Table ±8% FS
Table 4 - Low Frequency Elements
7/8" Line Section - Low Frequency Elements
Table 6 - Milliwatt Elements
7/8" Line Section - Milliwatt Elements
Carrying Case - Portable Thruline®, Load, Signal Sampler, QC Connectors and 4 Elements
Carrying Case - Thruline® Wattmeter, 5 Elements and 1 Small Load
Carrying Case - 12 Plug-In Elements