User's Manual

Five-band Signal Booster For In-building
1.3 Functions
I. Automatic Shut Down Mode
Built-In Automatic Self-Monitoring Features for Anti-Oscillation:
Automatic shut down mode operates when oscillation in the uplink and
downlinks bands are detected and terminates potential harmful interference to
wireless networks.
• 1 minute non-operative mode on the first initial oscillation detection.
• Default algorithm re-set mode as Auto S/D Mode is cleared
• Complete shut off mode on the 5th repetition of auto shutdown mode
status. All path are independently monitored and operated.
II. Intermodulation Gain & Power Limit Control
Uplink & downlink path formulates consistent link balance to regulate its
input and output gain & power limits.
Max UL gain < - 34dB – RSSI + MSCL (“ FCC 13-21,(i), 78p”)
RSSI : Downlink composite received signal power at the donor port
( calculation value : DL Output – DL Gain )
MSCL : Mobile station and repeater service port minimum coupling Loss
( setting value )
All path gain limits are independently controlled
III. ALC (Automatic Level Control) & AGC
ALC is implemented to keep regular output power level for abnormal high input
signal level.
The regular output power makes possible high quality of phone call and data
transfer.
AGC is designed to automatically control gain.
• Optimal Window Size (frequency range) sets the optimal level to increase
faster response to modulated signal level changes on the basis of gain
power control via signal input/output differential calculation all path gain
limits are independently controlled
IV. UL Path Automatic Sleep Mode
If coverage is non-existent (Zero Area Zone), Uplink path shuts off as
a
harmful interference avoidance protocol and minimizes its power
consumption.
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