Operating Instruction

FCC ID: OIW CBDASMRPS8
Page 8 of 11
BDA CONNECTIONS
The BDA AC power is supplied through a standard 3-wire male
plug with phase, neutral and safety ground wires. The AC power is
only used to supply a high efficiency DC switching power supply.
The two amplifiers (Uplink and Downlink) and the Power On lamp
use only DC power.
The RF connection is made via two type “N” female connectors.
The RF connector labeled “Base” must be connected to the
antenna pointing to the base station. The RF connection labeled
“Mobile” must be connected to the antenna pointing into the area
to be covered by the BDA.
The connections must be made through 50 ohms impedance
cables.
The isolation between the base station antenna and the mobile
antenna should be at least 12 dB higher than the BDA gain. If the
isolation were less than the BDA gain, oscillation would start and
would saturate the amplifier. Isolation few dB higher than the BDA
gain cannot start oscillations but would causes gain ripple in the
band.
PERIODIC MAINTENANCE
The BDA should provide long term, care free operation with no
need of any periodic maintenance.
The BDA has no user adjustments or alignments.
The front panel lamp indicates power supply turn on.