Bird Thruline Wattmeter Elements. It is supplied with a special broadband element with a frequency range of 25 to 1000 MHz. 100 mW to 10 kW using Bird Plug-in Elements.
The wattmeter housing does not interfere with connector changes. Bird 43 Wattmeter Elements. BIRD WATTMETER 6254 MODIFIED TO 43 THRULINE HAM RADIO ELECTRONICS BOAT ANCHOR.
450 kHz-27 GHz depending on element Insertion VSWR.
D Series 200-500 MHz. I also inserted my known good CDI Coaxial Dynamics Inc 100 watt element into the Bird. Bird Model 43 RF Wattmeter - The Industry Standard. Bird Model 43 Thrulinec Wattmeter New Accuracy 5 fs.