User's Manual

• What is Auto Limit Control (ALC)?
ALC is used for custom installations.
If the repeater is having difficulties with isolation check, or if you want to “power down” the repeater ALC should be
manually set. Attenuation may also be added for reducing power levels. ALC also provides optional U/L and D/L
settings.
- ALC controls the output power.
- If you want to use the ALC function, Gain Balance Control should be turned off.
- ALC will reduce max gain by the set value even if the input signal decreases.
- ALC should be used if the repeater is connected to a DAS system.
• What does the Shutdown ON/OFF control?
- An internal wave-detection is checking the noise level. If the repeater cannot secure isolation it will go through a
process of turning itself off, and turning back on while doing isolation checking.
- If it is impossible for the repeater to secure isolation after 30 minutes, the repeater will shut down and stay shutdown.
The items that may automatically require the repeater to shut down are:
-> VSWR Alarm, Over Power Alarm, Over Input Alarm, and Temperature Alarm.
• What is Gain Balance Control?
- Gain Balance Control will always keep the UL and DL ATT the same while using AGC.
GBC should always be left on to prevent damage to BTS while using AGC.
- This is used for BTS to cell phone power control.
RF Configuration Menu FAQ’s
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