Installation guide

INTRODUCTION
INTRODUCTION
1
T
he information in this manual has been
gathered from some of the most experienced
antenna installation professionals in the
country and compiled by Channel Master
®
field
engineers. It is intended for technicians who are, or
plan to become professional antenna installers. Any
handy “do-it-yourself” consumer can mount an
antenna, run transmission line and pull in some kind
of a signal. But only a professional can select and
precisely install the correct antenna and assure his
customers years of superior TV/FM reception.
Back in the 1940s, TV antennas were actually
manufactured by hand at the installation site. Each
antenna was assembled, piece by piece, at the
customer’s home. Channel Master eliminated this
time-consuming labor by introducing the first
preassembled TV antenna, providing excellent
reception in all areas and at reasonable prices.
Today medium-to-high gain, broadband antennas are
essential for good reception. Even the most expensive
color TV or FM stereo receiver can’t perform to full
potential without the strong signals that only a
quality antenna system can provide.
Advanced antenna theory and design is not included
in this manual. The greatest emphasis is on practical,
time-tested methods and procedures for properly
installing TV and FM antennas. With this foundation
of knowledge, you can build your reputation as a
professional antenna installer–one who is capable of
assuring his customers the finest performance from
today’s sophisticated TV and FM equipment.
A WORD ABOUT ANTENNA SPECIFICATIONS
Sensitivity ratings are based on optimum conditions
over unobstructed terrain. What lies between a trans-
mitter and an antenna installation will have a direct
bearing on what type of antenna is appropriate.
Factors to consider are: the power output and height
of a transmitting antenna tower, the type of terrain
between the tower and the receiving antenna, and the
size and number of buildings that lie in the path of the
transmission.
All Channel Master VHF/FM and UHF/VHF/FM
antennas have sensitivity classifications such as
“fringe,” “suburban,” “deep fringe,” etc. These classi-
fications are designed to indicate at what distance
from a TV transmitter the antenna will provide the
best reception. Our antenna lab has computed the
following chart as a general guide:
Area Designation For VHF For UHF
Deepest Fringe 100
+
miles 60
+
miles
Deep Fringe 100 miles 60 miles
Fringe 80 miles 45 miles
Near Fringe 60 miles 40 miles
Far Suburban 50 miles 35 miles
Suburban 45 miles 30 miles
Far Metropolitan 30 miles 25 miles
Metropolitan 25 miles 15 miles
Additional performance information is available from
Channel Master upon request. Write to:
Channel Master
P.O.Box 1416
1315 Industrial Park Drive
Smithfield,NC 27577
Or contact us through our site on the World Wide
Web at:
www.channelmaster.com