CM2020 Amplifier - Installation Manual
14
Copyright 2011 Cellphone-Mate, Inc. All rights reserved.
• Splitter loss (SL): This is the signal loss caused
by a splitter (used if you are installing multiple
antennas).
• Amplifier gain (AG): Number of decibels of
amplification provided by the amplifier (rated
gain less any attenuation, as described in
Chapter 5 of this manual). This is always a pos-
itive number.
The signal strength S at an interior antenna equals
OSL+OAG+IAG+CL+SL+AG. To calculate the
approximate coverage distance of each antenna:
1. Calculate the signal strength S for the first
interior antenna using the preceding formula.
SL Cellular PCS
2-way -3 -3
3-way -5 -5
4-way -6 -6
2. Find the signal strength S for the antenna
along the bottom of the graph on the follow-
ing page.
3. Move straight up the signal strength line to
the PCS and cellular curves.
4. Read the approximate coverage radius on the
left.
3.6 - Amplifier Location
Select an indoor location for the amplifier that
meets the following criteria:
• Wall or ceiling mounts are acceptable.
• Near a properly grounded 110VAC outlet.
• Not in a tightly enclosed or overly hot space.
• All power and warning lights easily visible.
• Least amount of cable to connect all antennas.
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