User's Manual

l Page 5 Kaval Telecom Inc. DCM000000001

• BLOCK DIAGRAM

REJECT FILTER #2

UPLINK DIRECTION

IN BUILDING

ANTENNA

COOLING FANS

VENTILATION

INPUT

AC POWER

TERMINAL BLOCK

VENTILATION

BDA

SUPPLY

28V POWER

CONTROLLER

ROOF TOP

DOWNLINK DIRECTION

PA #1

REJECT FILTER #1

PA #2

BOOSTER #1

BOOSTER #2

Power and Control Connections -------

RF Connections ____

BDA Controller : An enclosed unit with microcontroller, LED indicators, buttons, and two-line display.

Temp Sense & Cooling Fans : Controlled by the BDA Controller to ensure safe and reliable operation.

28V Power Supply : Providing all DC Power, with optional Gell-Cell Battery Backup.

Duplexers : Isolating Downlink and Uplink Frequencies, and coupling to antennas.

Reject Filters : Installed if required to eliminate feedback.

Boosters : 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.

PA Power Amplifiers : Optional Linear Power Amplifiers providing 15 dB of additional gain, and up to 20 Watts

of RF Power.