User's Manual

9
Understanding the Amplifi er Lights
The amplifi er is equipped with sensitive electronics designed to detect amplifi er
oscillation or cell phone overload, both of which can hamper amplifi er performance.
The amplifi er is designed to automatically reduce gain or, if necessary, shut down
to prevent or compensate for these conditions. Oscillation or overload can be
caused by improper equipment installation -- understanding the amplifi er lights will
help you identify and solve potential problems.
The power light will turn green when the
amplifi er is initially powered on.
When all lights are green, the amplifi er
is working at proper gain level (peak
performance).
If lights A, B and C are green but D is out,
the combination of outside signals is too
strong and the amplifi er is powering down.
To remedy this, turn the outside antenna
slightly away from the cell site until all
lights are green.
If light A is amber, lights B and C are
green, and light D is off, the amplifi er
has reduced its gain by 10 dB due
to oscillation. Similar to placing a
microphone next to a speaker with an
audio amplifi er, placing the inside and
outside antennas too close to each other
will cause oscillation. In such a case,
although the amplifi er is still working
at reduced gain, the antennas need
more separation for optimal amplifi er
performance. See “Troubleshooting” on
page 10.
If light A is amber, light B is green, and
lights C and D are off, the amplifi er
has reduced its gain by 20 dB due to
oscillation. As above, the amplifi er is
still working at reduced gain, but the
inside and outside antennas need more
separation for optimal performance. See
“Troubleshooting” on page 10.
If light A is red, the amplifi er has shut
down, due either to oscillation or to cell
phone overload. See “Troubleshooting” on
page 10.
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