Dekolink Deko2119 Product Manual page 16

P M
RODUCT ANUAL
The output RF signal is amplified by a power amplifier, combined by the
Duplexer and output from the diplexer that enables dual-band (Cellular and
PCS) signal output.
2.2.2 Power Monitoring - Smart-ALC
The Smart Automatic Level Control (Smart-ALC) is an innovative algorithm
for automatic repeater gain adjustment. Combined with advanced control
algorithms, SALC can perform gradual learning of traffic load characteristics
and adjust the Repeater RF Gain to the desired value.
This automatic operation practically removes the need to make initial settings
for maximal traffic load conditions and eliminates the need for numerous site
visits to take care of Gain adjustment.
The Smart-ALC maintains the Uplink/Downlink gain balance for system
transparency. This algorithm also adjusts the gain of the Repeater paths in case
of oscillations that may occur due to insufficient isolation, thus preventing
oscillations while maintaining the gain in a linear range operation. Smart-ALC
effectively reduces isolation problems.
To reset the Repeater to its highest set gain value, it is sufficient to simply
disconnect the Repeater power cable for several seconds and reconnect anew.
In addition, the power amplifier includes power-monitoring circuits with
Automatic Level Control (ALC). The ALC prevents excessive output power
while maintaining the power amplifier linearity.
2.2.3 SAW Switcher
The SAW switcher enables to select one or two PCS operational blocks along
the PCS band. The desired pair of frequency blocks can be tuned anywhere in
the available band. The selection is software enabled.
2.2.4 Control and Monitoring
The Mini-Repeater operation is controlled by a microprocessor. The processor
monitors the Repeater function and controls the alarm LEDs located on the
Mini-Repeater front panel.
2.2.5 Protection
The Mini-Repeater includes protection against high V.S.W.R.
An auto recovery mechanism returns the unit to normal operation, after power
or other failures.
Page 8
M -R D 2119
INI EPEATER EKO
Proprietary Data
D W L
EKOLINK IRELESS TD
Pub. 313-2006 Rev. 2.01S
.