The Amplify Adjustable Gain Preamplifier (CM-7777HD) has a switchable 17-30dB adjustable gain setting. The Titan 2 High Gain Preamplifier (CM-7777v3) has 30dB of gain. The Titan 2 Medium Gain Preamplifier (CM-7778v3) has 16dB of gain. Preamp's Cannot be used with Amplified Antennas.Ĭhannel Master provides three preamp's with different amounts of gain. Since the splitter used to connect multiple TV outlets in the home causes signal loss, a preamplifier at the antenna can help overcome these losses by increasing the signal levels coming from your antenna. One more situation that may benefit from use of a preamplifier is when multiple TV outlets are being fed from the same antenna. If there is 50 feet or more of cable between the antenna and TV set, a preamplifier may provide an improvement. If the station/s you want to receive are in the Red or Grey you most likely will see an improvement in signal strength by installing a preamplifier.Īnother possible need for a preamplifier will be on installations with long coaxial cable runs from the antenna to the TV. One good way to determine if a preamplifier is needed it to enter your address into the Antenna Selection tool and review the listing of available channels at your location. Since this is not usually available for most home installations, determining the correct preamplifier can be challenging. The only sure way to determine if a preamplifier is needed is to measure the received signal levels with a field strength meter. In areas close to TV transmitters, a preamplifier is usually not needed and can actually cause problems as it may cause the signal levels to be too high. In areas distant from TV transmitters, overcoming this loss is necessary since the signals can be weak. A mast or antenna-mounted preamplifier is used primarily to overcome the loss in the coaxial cable between the antenna and the TV.
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