The PE73SP1007 from Pasternack Enterprises Inc is a RF Surge Protector with Frequency 698 MHz to 2.7 GHz, Input Power 500 to 750 W, Insertion Loss 0.1 dB, Operating Temperature -50 to 85 Degree C, Return Loss 26 dB. Tags: Filter. More details for PE73SP1007 can be seen below.