The 50PA-811 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 23 to 28 dBm, Insertion Loss 31 dB. Tags: Rack Mount. More details for 50PA-811 can be seen below.