Bird 43
The Bird 43 thruline directional wattmeter is a portable insertion-type instrument. It accurately measures forward or reflected power in coaxial transmission lines under any load condition. Power range is 100mW to 10 Kw using Bird plug-in elements.
Accuracy not guaranteed with components not supplied by Bird. Using Bird elements the accuracy is +- 5% of full scale.
Frequency range, depending on elements is from 0.45 to 2300 Mhz.

Bird 43P
Like the model 43, the model 43P measures forward and reflected RF power in the CW mode. In addition, it measures true peak power of SSB, AM, and limited pulse signals. Simple to operate, accurate and uses standard plug-in elements.

Bird 4410
Like the model 43 wattmeter, the 4410 series wattmeters, are rugged, reliable and easy to use. In addition, the dynamic range of the 4410 series has been expanded, resulting in greatly increased sensitivity as well as improved accuracy.
Each 4410 series wattmeter plug-in elements is capable of reading seven different power ranges.

Bird 4381
This digital RF wattmeter for two-way communications, avionics radar and many other applications provides the following features: read incident and reflected CW and FM power in watts or dBm, read incedent and reflected peak-envelope power of SSB/DSB and symmetrical AM in watts, read incident and reflected peak pulse power as narrow as 50 micro-seconds in watts, calculate SWR, dB return loss, percent modulation.

Bird 8135
This unit is a 150 continuous watt dummy load that covers a frequency range up to 2.4 GHz. Connector is N type female. Dimensions are 10” x 6” x 4 and weight is 2.7 Kg.

Bird 8251
This unit is a 1000 continuous watt dummy load that covers a frequency range up to 2.4 GHz. Connector is N type female. Dimensions are 18” x 9” x 6” and weight is 11.5 Kg.

Bird 6735
This unit is a 1200 continuous watt dummy load including a watt meter that covers a frequency range up to 2.4 GHz. Connector is LC standard, but can be changed if necessary. Dimensions are 18” x 9” x 6” and weight is 11.5 Kg.