Block Diagram - Kaval BDA-1000 User Manual

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BLOCK DIAGRAM

ROOF TOP
ANTENNA
VENTILATION
AC POWER
INPUT
Power and Control Connections
RF Connections
BDA Controller :
Temp Sense & Cooling Fans :
28V Power Supply :
Duplexers :
Reject Filters :
Boosters :
PA Power Amplifiers :
l Page 5
DOWNLINK DIRECTION
BOOSTER #1
HP
28V POWER
SUPPLY
LP
REJECT FILTER #2
TERMINAL BLOCK
UPLINK DIRECTION
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An enclosed unit with microcontroller, LED indicators, buttons, and two-line display.
Controlled by the BDA Controller to ensure safe and reliable operation.
Providing all DC Power, with optional Gell-Cell Battery Backup.
Isolating Downlink and Uplink Frequencies, and coupling to antennas.
Installed if required to eliminate feedback.
High Gain (11 to 65 dB) Linear Amplifiers supplying up to 1 Watt of RF Power. The
basic gain is adjustable via the BDA Controller over a 33 to 65 dB range, and an
Automatic Gain Control (AGC) provides an additional 23 dB range.
Optional Linear Power Amplifiers providing 15 dB of additional gain, and up to 20 Watts
of RF Power.
Kaval Telecom Inc.
REJECT FILTER #1
PA #1
BDA
CONTROLLER
PA #2
BOOSTER #2
COOLING FANS
HP
IN BUILDING
ANTENNA
LP
VENTILATION
DCM000000001