CHAPTER 5: Configuration & Testing
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many areas of the building as possible. A suc-
cessful installation means that you can make
calls without dropping and/or have a reliable
data connection.
• Do not expect to see 5 bars of reception
everywhere in the building as this is practically
impossible. Also, signal strength in dB can vary
significantly without necessarily affecting the
number of bars displayed because different
phone and data card manufacturers handle
bars slightly differently.
• A good rule of thumb is that increasing gain by
6dB doubles the coverage distance of the inte-
rior antennas. Start at the lowest gain setting
and increase gain gradually as needed.
• If one or more red Warning lights comes on,
oscillation is either happening or is about to
happen and protection circuits are activating
(if equipped). If oscillation is or becomes
severe, the amplifier will power down and will
then wake every 30 seconds for the next 15
minutes to see if the problem has been
resolved. If the problem has not been resolved
after 15 minutes, the amplifier will shut off
and will need to be unplugged and plugged
back in again to reset.
• You may see oscillation in the 800MHz band
and/or the 1900MHz band (see Section 5.6).
• If you can’t get the system to work properly,
you may need to install an additional interior
antenna and/or a different type of interior
antenna and/or relocate interior antennas.
Note: In general, the uplink and down-
link DIP switches should be set identi-
cally but this is not always the case.
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