Copyright 2011 Cellphone-Mate, Inc. All rights reserved.
3
• Sufficient CM400 ultra
low loss interior/exte-
rior cable (for amplifi-
ers above 55dB).
• Sufficient CM240 ultra
low loss interior/exte-
rior cable (for amplifi-
ers 55dB and below).
• Up to 6 internal anten-
nas (such as the
CM222W, CM223, or
CM224 omnidirec-
domes and/or
CM248W flat panel by
Cellphone-Mate, Inc.).
• Grounded surge sup-
pressor for DC power
supply.
1.4 - How It Works
The CM2020 amplifier boosts cellular signals from
the nearest tower to phones in a building and
from those phones back to the tower to compen-
sate for weak
caused by distance,
topography, building structure, and/or other rea-
sons. The amplifier receives the signal from an
outside antenna, amplifies that signal, and then
rebroadcasts it via the interior antenna(s) where it
is picked up by cellular phones, modems, and data
cards. The interior antennas also pick up signals
from cellular devices and pass them to the ampli-
fier. The amplifier boosts these signals and passes
them to the exterior antenna for rebroadcast back
to the tower.
1.5 - About This Manual
W
W
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