3 GHz High performance Dual Splice ground block features a zinc body with machined threads and multiple ground screws. Nickel plated block and stainless steel ground screws for maximum outdoor survivability. High Electrical Performance for Satellite Frequency. Single, Dual & Extended Lengths. Patented Splice Design. UL Listed. Machined Threads. High Return Loss (>35 dB). Lower Insertion Loss. Flat Port Ends.