Specs:

• Frequency: 250-1000 MHz
• Power: 5/15/50/150/500W
• Use with 4304A Wattmeter

4304A-1 Elements are specially designed to be used with the 4304A Wattmeter are calibrated in accordance with meticulous Bird calibration procedures supported by a long history of mean deviation values to assure adherence to advertised specifications of current instruments, as well as field interchangeability with equipment purchased, used and trusted in all the years since its introduction.