The 50PA-819 from JFW Industries is a Handover Test System with AC Supply Voltage 100-240 VAC @ 47-63 Hz, Attenuation 0 to 63 dB, Frequency 700 MHz to 6 GHz, Input Power 26 dBm, Insertion Loss 19 to 20 dB. Tags: Rack Mount, Full Fan Out. More details for 50PA-819 can be seen below.