 Please note: CM-7777
is currently out of stock until mid June - The CM-7778 is the closest sub and will
offer the same performance and outcome for most areas, click here for
specifications The Channel Master television antenna booster (preamplifier) will amplify digital and HD signals received by your antenna. This antenna preamplifier is a high gain, low noise preamplifier used for weak signal areas to allow a weak signal that is present at the antenna to be amplified to a viewable strength. This TV antenna preamplifier works best for persons in weak signal areas and is subject to overdrive if used in areas with fairly strong signals. In stronger signal areas our medium gain preamplifier, the CM7778 is a better choice. Preamplifiers are also used if you anticipate distributing your signal with a digital splitter to multiple outlets throughout your house as splitters reduce the signal strength available at each output.
Combined VHF/UHF inputs
Gain: 30 dB, 54 to 1002 MHz
Includes a switchable FM trap
Outdoor rated housing
Mast mounted amplification unit with indoor power supply which connects via coaxial cable
Preamplifier and its power supply can withstand up to 140° F temperatures
Power supply is included; output voltage is +15 VDC, UL listed
Impedance (Input and Output): 75 Ohm
Connectors (Input and Output): Type "F"
Frequency range: 30 MHz to 1002 MHz
Gain: 30 dB
Noise Figure (Typical): 2.8 dB
Q. Which pre-amp do I need?
A. Look up your location on www.antennaweb.org. If you have a TV transmit station within 20 miles, we recommend either the 0068DSB or the 7778.
If you do not have a TV transmit station within 20 miles, we recommend the 7777.
Q. My reception is worse after installing the pre-amplifier.
A. Insure that there is not a splitter in the cable line between the pre-amplifier and the pre-amplifier power supply.
A. Try replacing the cable between the pre-amplifier and the power supply.
A. Insure you have properly installed the pre-amplifier per the instructions.
Introduction to the Channel Master preamplifier Video Channel Master preamplifier troubleshooting Video
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