The 3128A Wattcher RF Power Monitor/Alarm is designed to protect and monitor your RF frequency transmission system by connecting the power meter to a Bird dual port thruline line section and two elements compatible with the RF coaxial line.
Power Range : 100 mW to 10 kW using Bird® Plug-in Elements
Frequency Range : 450 kHz to 1 GHz
Insertion VSWR : with N connectors 1.05 max. to 1000 MHz, 1.10 max. to 2700 MHz