COBHAM DIGImini - Single Unit and Dual-Unit Installations; Single Band Unit Upgradeable to Dual-Band; Smart-ALC Function; DMCU - Optional

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage Date: 6-Jul-17 www.cobham.com/wireless
Document number: 00031UM Rev. 6.3
Page |1-3
1.2 Single Unit and Dual-Unit Installations
DIGImini installation varies depending on whether one or two units are installed:
• Single DIGImini unit (supports single-band or dual-band) – details in Chapter
3.
• Dual DIGImini assembly (up to four bands) – details in Chapter
4
1.3 Single Band Unit Upgradeable to Dual-band
Single-band units can be upgraded to support two bands by acquiring the appropriate license file from
Cobham Wireless support team.
1.4 Smart-ALC Function
The Smart Automatic Level Control (Smart-ALC) is an innovative algorithm for automatic repeater gain
adjustment per sub-band.
Combined with advanced control algorithms, SALC is capable of learning the traffic load characteristics and
adjusting the Repeater RF Gain to the desired value.
Smart ALC eliminates the need to perform initial settings for maximal traffic load conditions and on-site gain
adjustments.
Smart-ALC maintains the Uplink/Downlink gain balance for system transparency. In addition, Smart-ALC
prevents oscillations that may occur due to insufficient isolation while maintaining the gain in a linear range
operation by adjusting the repeater paths’ gain accordingly.
IMOP (Isolation Measurement and Oscillation Prevention) algorithm effectively reduces oscillation problems.
The repeater’s power amplifier includes power-monitoring circuits with Automatic Level Control (ALC) that
prevents excessive output power while maintaining the power amplifier linearity.
1.5 DMCU - Optional
The DMCU (DIGImini Control Unit) provides complete remote control and monitoring capabilities over
WCDMA/GPRS, including Remote control via SMS.
The DMCU is an optional control unit that is ordered separately and is installed
externally , where one DMCU
can support a single DIGImini unit as well as an a DIGImini Quad-band assembly.
NOTE: Refer to the DMCU User Manual for the complete description of the DMCU and the configuration and
management capabilities provided by the unit.