The DSXL-NS from PolyPhaser is a RF Surge Protector with Frequency 700 MHz to 2.7 GHz, Input Power 300 W, Insertion Loss 0.1 dB, Operating Temperature -40 to 85 Degree C, Storage Temperature -40 to 85 Degree C. Tags: Filter. More details for DSXL-NS can be seen below.