Installation and Operating Instructions

Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510
Tel- 972-3-9180-180; Fax-972-3- 190-9180 ;
[e-mail]
CBDA Overview
The Compact Bi-Directional Amplifier (CBDA) assembly provides exceptional
repeater/booster performances to extend the coverage area of radio
communications in buildings and RF shielded environments.
:Main Features
• Covers both SMR 800 and SMR 900 in one product.
• Exceptionally high linear operation
• Alarm indication by LED and Dry contact
• Manual and Automatic gain control
• Ideal for in-building coverage solutions
• Relative small size and light weight
• Cost effective solution
• Wall mounted easy Installation
• Reliable operation, maintenance free
lock Diagram DescriptionB
The CBDA Downlink path receives TX signals from base station amplifies them
and transmits them to the subscriber. The CBDA Uplink path receives RX
signals from the subscriber amplifies them and transmits them to the base
station. Two quad filter assemblies frequency separate the signals to the proper
amplifying path and isolate the two signals.
Each path has two amplifiers; a low noise amplifier (LNA) and a high power
amplifier. The low noise amplifier has a 30 dB step attenuator, which is used to
set the repeater gain.
The power amplifiers in the CBDA have an AGC option switch. They also have a
Power LED lamp that illuminates when the output power has reached the preset
power limit.
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