POLYPHASER~Coax 698-2700 MHz Bi-Directional High Pass Filter Low PIM 7 GHz lightning protector DC block ultra low PIM, bi-directional operation coaxial RF protector for microwave radios operating between 698 MHz To 2.7 GHz @ -26dB Return Loss, Bi-Directional Operation. Specifications: TypeDC Block Mount TypeBulkhead Mount Bi-Directional StandardsCE Compliant, ROHS Compliant Connector DIN Female to DIN Female Surge Side Connector Bi-Directional D Protected Side Connector Bi-Directional D Frequency Range698 MHz to 2.7 GHz RF Power750 W Insertion Loss =0.1dB Protocol / Applicationdc block ultra low PIM, coaxial RF lightning protection