Cellphone-Mate Inc.
CM2020 Manual
3
INSTALLATION INSTRUCTION
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Warning: Never power on the unit before completing the installation.
Always refer to the picture on the next two pages. It is there to help you through each step of the installation.
STEP 1. Install the CM2020 on the wall with the mounting kits supplied.
STEP 2. Connect the Inside Antenna to the side that shows “MS”. (Mobile Station)
STEP 3. Connect the Outside Antenna to the side that shows “BS” (Base Station):
For best performance, please try to mount the
outdoor antenna at the location where best possible cellular signal can be found. The outside antenna should be located in an area with at
least 12” radius clear of obstructions, and other radiating elements.
NOTE: Keep the separation distance between the inside and outside antennas
to at least 75 ft apart to avoid RF oscillation.
If not, then the amplifier gain must be reduced accordingly using dip switches on both side of the unit for both uplink and
downlink, both PCS and Cellular band.
STEP 4. Connect the Power Cord.
Warning: To prevent damage to the Amplifier, before you plug in to an AC power outlet, please make
sure that both sides are already connected with the RF cables from both the outdoor and indoor
antennas.
WARNING: after power is on, before making any cellular phone calls, if uplink lights
that marked “full” is on (either band), that means the oscillation is happening. You
should POWER OFF the unit immediately, then please reduce both the uplink gain
and downlink gain via the dip switches, or increase separation distance, or do both
until uplink “Full” light of neither bands are on while you are not making cellular
phone calls.
Note: 1. Power lights should always be on after you power up.
2. During Cellular phone conversations, it’s normal to see uplink “Full” light of either or both bands blinking.
STEP 5. After resolving all oscillation problems, users can make cellular phone calls to test how the repeater system works,
further adjust gain if needed.
Safety Warning:
1. The input voltage for the Amplifier is 9V. DO NOT use this Amplifier with a regular 12V or higher power supply. If a 12-volt
or higher power supply is connected directly to this Amplifier, it could be damaged.
2. Never plug in the power supply to the amplifier without the outdoor antenna and indoor antenna cables been attached to the
