4308, Cellular Specialist Wattmeter

The Model 4308 Thruline Wattmeter is a portable multi-range RF wattmeter. It is a device which requires no external power source or batteries for operation. It is used to measure RF power when inserted into a transmission line of 50 ohms impedance. When operated in this manner, it is used to determine power flow and load mismatch in coaxial transmission lines. It may be used to make measurements of CW, FM, or PM (Plane Modulated) RF Power.