Extension Cable f/500 Series VHF/AIS Antennas - 20' An easy solution to extending the cable on Digital Antenna's 500 series VHF and AIS antennas. Simply connect the included double mini-UHF male adapter between the 500 series antenna's mini-UHF female connector and the 500 series extension cable's mini-UHF female connector. The cable's other end accepts the 500 series antenna's PL-259 adapter. All Extension Cables for 500 Series VHF/AIS Antennas Feature: Our exclusive low loss, tinned braid, foil shielded, UV stable RG-8X marine cable; Factory attached mini-UHF female and mini-UHF female connectors; DA624 mini-UHF double male adapter; - cis2:mm5mnJlm -Specifications: Type: Extension; Box Dimensions: 1"H x 11"W x 11"L WT: 0.6 lbs; UPC: 839494001794; Brochure (pdf)