This "Little Giant" cellular marine antenna delivers exceptional performance, covering digital, analog & PCS cellular bands. Base is constructed with a special sleeve for mast mounting with 1-1/4" U bolts clamps, supplied. Requires 50 ohm low-loss coaxial cable and connectors (not included). Base of antenna requires PL259 connector. Suggested mounts: 4187 or 5187 This product ships in approximately 1 days