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Overview: The Channel Master Model CM-3671 is a large outdoor
TV antenna that will receive both digital TV and HDTV programming. It offers
superior signal strength, and is recommended for antenna reception markets where
TV signals are weak to strong. In weak reception areas, you should use an
antenna booster in conjunction with the antenna.
Reception Range: This HD antenna receives the UHF, VHF and
FM bands (channels 2 through 69) with a reception range of approximately 100
Construction: The CM-3671 has 61 elements, arranged in a
double boom design. The antenna comes in three pieces, plus hardware, requiring
extensive assembly. A majority of the elements must be unfolded when mounted.
Mounting: The antenna comes with two U-bolt mounting
assemblies for secure mounting to an antenna mast. It can be mounted on a roof, wall, chimney, in an attic,
or on a tripod. The manufacturer's suggested height is 5-10 feet above the
Turning Radius: The Model 3671 has a 95-3/4" turning radius. If using an
antenna rotor, you must make sure there are no obstructions around the antenna
mast that would interfere with the antenna's rotation.
Connections: The included 75-ohm matching transformer will
need to be connected to the antenna
tap-off points using the included wing nuts. The other end of the transformer
has a female F-type connector. The included waterproof rubber weather boot
should be installed over the cable connection to guard against corrosion.
Note: Coax cable is not provided; RG-6 is recommended.
Grounding: The antenna and mast should be properly grounded. Grounding
provides lightning protection for the antenna and your TV set. A #8 or larger
aluminum or copper wire connected between the antenna and grounding rod should
be used. In addition, the Channel Master Grounding Block (item
recommended for grounding the coaxial transmission lines.