Built-in amplifier and unique circuitry provides clear VHF/UHF reception whenever you park your RV. Raise, lower and rotate the antenna with hand crank from inside your RV. It's easy to install and lowers to only 4 inches above the roof while traveling. Antenna RV-3095 includes amplified antenna and lift assembly, +12 VDC white power supply with on/off switch, white interior control parts, 20 ft. of 75 ohm coax cable, 6 ft. TV set cord. Antenna RV-7095 includes amplified antenna/lift, white control parts, no power supply or cable. U.S. Patent D500,496.