Dekolink Wireless CBDAPCSAC1W65 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: [e-mail]

web www.decolink.com

INSTALLATION

AND

OPERATING INSTRUCTIONS

FOR

MW-CBDA-PCS-X-1W65-A

CELLULAR

BI-DIRECTIONAL AMPLIFIER

TABLE OF CONTENTS

Page 1 of 9 CBDA PCSX 1W65 Install.doc

Dekolink WIRELESS Ltd.
16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510
Tel- 972-3-9180-180 Fax-972-3- 190-9180
e-mail: [e-mail]

web www.decolink.com

PARAGRAPH PAGE No

BDA OVERVIEW 3

BLOCK DAIGRAM DESCRIPTION 3

BDA OPERATION 4

AGC & MGC FUNCTION 5

RF EXPOSURE WARNING 6

ELECTRICAL SPECIFICATIONS 7

MECHANICAL SPECIFICATIONS 7

ENVIRONMENTAL CONDITIONS 7

LIST OF DRAWINGS

DRAWING PAGE No

BDA (WITH AGC) RF BLOCK DIAGRAM DRAWING 4

AGC & MGC CONTROL 5

MECHANICAL OUTLINE 8

Page 2 of 9 CBDA PCSX 1W65 Install.doc

Dekolink WIRELESS Ltd.
16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510
Tel- 972-3-9180-180 Fax-972-3- 190-9180
e-mail: [e-mail]

web www.decolink.com

BDA OVERVIEW:

The Bi-Directional Amplifier (BDA) assembly provides an exceptional repeater/booster performances to

extend the coverage area of radio communications in buildings and RF shielded environments.

Features such as high linearity power amplifiers are contributing for the overall improved system

linearity performances. The unit is based on a duplexed path configuration, having sharp out of band

attenuation for improved isolation between the receiving and transmitting paths.

BLOCK DIAGRAM DESCRIPTION:

The CBDA Downlink path receives the RF signals from base station amplifies them and transmits them

to the subscriber. The BDA Uplink path receives the RF signals from the subscriber amplifies them and

transmits them to the base station. Two duplexers frequency separate the signals to the proper

amplifying path and isolate the two signals.

For each path there is an AGC amplifier. The amplifier has an AGC option switch. When switched on,

the AGC circuit limits the amplifier output power. The AGC circuit senses the output power and

introduces more attenuation, when the output power exceeds the preset level. This way the gain of the

amplifier is reduced, its output power is limited and the intermodulations products are kept below the

desired level.

In this manner the output power cannot exceed the preset power and the IMD levels are always kept

below –13 dBm.

The AGC amplifier has a Power LED lamp that illuminates when the output power has reached the

preset power limit.

In addition the BDA has a trimmer that enables continuos reduction of the gain by over 15 dB.

Page 3 of 9 CBDA PCSX 1W65 Install.doc