Locking on to your satellite signal is now a one-person operation. Satellite Signal Meter displays signal strength, according to dish position, with an easy-to-read analog needle and audible tone, allowing you to make necessary adjustments without having to yell back and forth from the window. Quickly installs between the satellite dish and receiver and includes a 3', 75 ohm cable for easy hook-up. Meter is powered by satellite receiver, so there's no additional power connection. Works great with #17018 Satellite Heading Compass. Includes three-foot 75 ohm cable for easy hook-up Powered by reciever, no need for extra power cord | Winegard Satellite Finder