SureCall | 1-888-365-6283 | [email protected] | www.surecall.com
21
Operation and Troubleshooting
LED Indications
Please note the following information:
• As highlighted in the table below, all of the following conditions indicate normal operation: lights off,
flashing yellow, or solid yellow.
• Only the presence of red LEDs indicate an unresolved issue.
• The booster gain switches should always be at maximum level unless the control light for a specific
frequency band is flashing red or flashing red-yellow. In either case, only reduce gain via switches if
other recommended actions do not resolve the issue.
• Avoid exceeding 25 dB of attenuation as this could cause affected frequency band to stop amplifying.
LED
Color
LED
Condition
Indication
OFF
Light is off while band is active.
This is part of normal operation.
Yellow Solid
Indicates that the frequency band is not being used. After a period of time, if there’s no
activity, that band will go into sleep mode. Light is off while band is active.
This is part of
normal operation.
Yellow Flashing
Indicates that the Automatic Gain Control (AGC) is self-adjusting.
This is part of normal
operation.
Red
Flashing
Indicates that the booster is receiving too much signal which could cause the affected
frequency band to turn off. If this happens:
1. For kits using an OMNI outside antenna, relocate the outside antenna to a location
where the signal is weaker.
2. For kits using a DIRECTIONAL outside antenna, turn the antenna in short increments
away from the signal source.
3. Add an inline attenuator to the cable coming into the outside port of the booster.
4. Though not desirable as amplification will not be optimum, lower the dB gain setting in
small increments until the light turns off or flashes yellow.
Red
Solid
The frequency band is off.
If a red light has been flashing for an extended time due to too much signal, that
frequency band will display a solid red light indicating that the circuitry for that frequency
band has been turned off. If this happens:
First, power cycle the booster. If, after power cycling, you observe Red Flashing LEDs,
follow the steps outlined for Red Flashing condition until overpowering has been
corrected.
Note: This may happen if attenuation greater than 25 dB has been made.
Red/
Yellow
Alternately
Flashing
Self-oscillation has been detected and to prevent it, one or more of the frequency bands
have shut off. If this happens:
First, try increasing the vertical/horizontal separation between the outside antenna and
inside antennas. If your booster kit uses two directional antennas (examples: outside Yagi
antenna or inside panel antenna), ensure that they are facing away from one another (see
“Antenna Aiming” on page 9).
If condition continues, lower the dB gain setting in small increments until the light turns
off or flashes yellow.
