The 50PA-850 from JFW Industries is a Handover Test System with AC Supply Voltage 100-240 VAC @ 47-63 Hz, Attenuation 0 to 95 dB, Frequency 30 to 3000 MHz, Input Power 1 W, Insertion Loss 44 to 47 dB. Tags: Rack Mount, Full Fan Out. More details for 50PA-850 can be seen below.