Communication Components DAC-850-125G2 GSM/EDGE Dual Amplifier Booster Combiner User Manual 605540
Communication Components Inc GSM/EDGE Dual Amplifier Booster Combiner 605540
Users Guide
GSM/EDGE Dual Amplifier Booster Combiner
CCI Model Number DAC-850-125-G2
USER’S GUIDE
Product Description:
DAC-850-125-G2 Dual Amplifier Booster/ Combiner:
The CCI GSM Dual Amplifier-Booster Combiner Module (DAC) consists of two linear
power amplifiers with intermodulation level control circuitry, each capable of
generating a 125 Watt GSM/EDGE signal. The Dual Amplifier-Combiner Module
(DAC) contains a passive hybrid combiner at the output which combines both signals
to provide two 60 Watt GSM/EDGE signals on a common output.
Operation Description:
The DAC-850-125-G2 Dual Amplifier Booster/ Combiner is designed to supply a
nominal output power level of 60 Watts (48 dBm) per channel. Although the gain of
the Dual Amplifier Booster/ Combiner is fixed, the output can be adjusted by setting
the input power level.
Operation and Installation Instructions:
The following instructions should be followed when installing the unit in service:
• Apply a 26-30VDC input voltage to the DC Input connector of the Dual
Amplifier-Booster/Combiner Module.
• Insure that the DC Source is capable of delivering up to 30 Amps at 28VDC.
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• Apply a GSM/EDGE signal of up to +41dBm to each RF input port of the Dual
Amplifier-Booster/Combiner Module.
• The Dual Amplifier-Booster/Combiner Module will provide approximately 7dB
or less of RF Gain.
• Check the RF output to insure the proper output power is present.
{Approximately 60 Watts (48dBm) per channel}.
• Adjust the input power level to insure the output power level is in compliance
with the values indicated in the table on page 2.
• Install the Alarm Connector to the Alarm Output connector of the Dual
Amplifier-Booster/Combiner Module.
Setting the RF Output Power on the DAC-850-125-G2 Booster Amplifier
The RF output power is not adjustable on the DAB & DAC Booster Amplifier. The
user must adjust the RF input power to the Booster Amplifier such that the RF output
power level does not exceed the levels shown below in order for the RF output
spectral emissions to be compliant with the FCC spurious emissions limit of -13 dBm
outside of the assigned frequency block. These levels must not be exceeded.
Note: At the highest and lowest channels, the power output must be
reduced to 3 Watts for GSM and 5.8 Watts for EDGE modulations to achieve
band-edge compliance.
Channel Center
Frequency (MHz)
Maximum RF
0utput (Watt)*
869.2-893.8 125
* Note: The Maximum RF Output Power is after any passive losses after the Booster Amplifier such as
filters and cables.
This equipment complies with Part 22 of the FCC rules. Any changes or
modifications not expressly approved by the manufacturer could void the user's
authority to operate the equipment.
In order to comply with FCC rules for RF exposure, it must be observed that the
antenna connected to this equipment be fixed on an outdoor structure and that it
must have a minimum separation distance of 10 meters between it and any
person."