VEHICULAR SATELLITE ANTENNA ; OPERATIONAL EVEN WHILE IN-MOTION ; MOUNTS ON TRUCK, RV OR TRAILER; OPTIONAL MOUNTING BRACKET REQUIRED ; 1-TOUCH AUTO-TUNING & SATELLITE SWITCHING; ELIMINATES NEED TO USE TRADITIONAL PUSH POLE FOR TUNING; COMPATIBLE WITH DIRECTV(R), DISH NETWORK, DISH HD, BELL EXPRESSVU & VU HD; REQUIRES 12VDC POWER; INCLUDES 20-FT COAXIAL & DC POWER CORD HARNESS; UNIQUE DESIGN MAKES IT RESISTANT TO SIGNAL LOSS DUE TO WIND/RAIN; SELF-CONTAINED; WEATHER-RESISTANT