Dekolink Wireless CBDAPCSAC10W80 MW-CBDA-PCS-AC-10W80 Compact Bi-Directional Amplif User Manual INSTALLATION
Dekolink Wireless Ltd MW-CBDA-PCS-AC-10W80 Compact Bi-Directional Amplif INSTALLATION
Contents
- 1. Installation instructions
- 2. Revised manual
Installation 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: marketing@decolink.com web www.decolink.com
INSTALLATION AND
OPERATING INSTRUCTIONS
FOR
MW-CBDA-PCS-AC-10W80
COMPACT BI-DIRECTIONAL AMPLIFIER
North America Sales & Service
Parker RF Technologies
2901 W. Busch Blvd., Suite 404, Tampa, FL 33618
Tel: 813-935-1825, Fax: 813-935-1824,
Web Site: www.parker-rf.com, e-mail: cellular@prt.net
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CBDA-PCSAC-10W80 INST-FCC.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: marketing@decolink.com web www.decolink.com
TABLE OF CONTENTS
PARAGRAPH PAGE No
BDA OVERVIEW 3
BLOCK DIAGRAM DESCRIPTION 3
BDA OPERATION 4
STEP ATTENUATOR & RF GAIN & SETTING 4
AGC FUNCTION 5
AGC AMPLIFIER CONTROLS 5
RF EXPOSURE WARNING 6
ELECTRICAL SPECIFICATIONS 7
ENVIRONMENTAL CONDITIONS 7
MECHANICAL SPECIFICATIONS 8
LIST OF DRAWINGS
DRAWING PAGE No
BDA RF BLOCK DIAGRAM 4
MECHANICAL OUTLINE 8
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CBDA-PCSAC-10W80 INST-FCC.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: marketing@decolink.com web www.decolink.com
:WBDA OVERVIE
The Compact Bi-Directional Amplifier (CBDA) 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.Two aditional filters , one in uplink path and one
in down link path are used to improve isolation.
For each path two amplifiers do the path signal amplification; a low noise
amplifier (LNA) and a high power amplifier. The low noise amplifier has a 30 dB
step attenuator at its output. The step attenuator is used to set the BDA
repeater gain.
The power amplifiers in the BDA have 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.
The AGC amplifier has a Power LED lamp that illuminates when the output
power has reached the preset power limit.
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CBDA-PCSAC-10W80 INST-FCC.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: marketing@decolink.com web www.decolink.com
Duplexe
r
Downlink
Duplexe
r
Uplink
LNA
Filter Attenuator
Power
Monitor PA
AGC
LNA
Attenuator Filter Power
Monitor
PA
AGC
BDA RF BLOCK DIAGRAM
TO
BASE
TO
MOBILE
BDA OPERATION
The RF connection is made via two type “N” female connectors. The RF
connector labeled “Base” should be connected to the antenna pointing to the
base station; usually a rooftop antenna. The RF connection labeled “Mobile”
should be connected to the antenna pointing into the area to be covered by the
BDA; such as inside a building.
Step Attenuator & RF Gain Setting
For proper operation of the BDA; the isolation between the base station antenna
and the mobile antenna should exceed the BDA gain by at least 12 dB. If the
BDA gain is higher than the isolation between the antennas, oscillation would
start and would saturate the amplifier. Isolation of few dB higher than the BDA
gain cannot start oscillations but would cause gain ripple in the band.
The step attenuator on the low noise amplifier can reduce the BDA gain. By using
the rotary knob , the attenuation can be adjusted in 2 dB steps up to 30 dB.
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CBDA-PCSAC-10W80 INST-FCC.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: marketing@decolink.com web www.decolink.com
The GAIN setting functions for the up link path and the down link path are reached by
opening the front door of the unit
AGC FUNCTION
The BDA has AGC function on both paths that serve to prevent the saturation of the
power amplifier. Their amplifier has a directional coupler and a detector at the output of
the high power amplifier to monitor the output power. When a high signal is received
the automatic level control detects the amplitude and sends a feedback signal to a
voltage variable attenuator which attenuates the signal level so that the output power of
the amplifier does not exceed the preset limit. The LED on the amplifier illuminates
when the power out the amplifier is within the set limit (when the AGC is On and when
the AGC is OFF).
The switch on the RF amplifier enables the AGC function. If the AGC is disabled then
the amplifier gives maximum gain.
Note: The BDA is shipped with the AGC switch in the OFF position.
The screw on the amplifier is used to set the AGC power limit. This is a factory-preset
level.
RF Power LED: The LED illuminates when the output power exceeds the AGC Set .
AGC ON / OFF Switch: When OFF the amplifier works with its highest gain (AGC
Function OFF). When set to ON (AGC Function ON) the amplifier power output cannot
exceed the set limit.
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CBDA-PCSAC-10W80 INST-FCC.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: marketing@decolink.com web www.decolink.com
RF EXPOSURE WARNING
In order to satisfy the FCC RF exposure requirements, you must ensure that the
installation complies with the following:
One antenna is connected via cable that has typical 1~10 dB attenuation
(depends on the length of the cable) to the BDA BASE port. This antenna is
installed outdoor and has very sharp beam (Yagi type or similar) pointed to the
donor (BTS). This type of antenna has about 16 dBi gain. Typical specifications:
gain: 8 dBd (=10.1 dBi), VSWR: better than 1.5:1 , Impedance: 50 ohm. The
outdoor antenna must be installed to provide a minimum separation distance of
0.5 m (50 cm) from persons within the area.
The second antenna is connected via cable that has typical 1~10 dB attenuation
(depends on the length of the cable) to the CBDA MOBILE port. This type of
antenna is omnidirecttional (isotropic), or wide beam, with 0 to 2 dBi typical gain
and is installed and distributes indoor (in buildings, tunnels, basements, park
lots, shopping centers etc.). For single indoor antenna, the antenna must be
installed to provide a minimum separation distance of 0.5 m (50 cm) from
persons within the area.
When 4 antennas (or more) are used, the indoor antenna must be installed to
provide a minimum separation distance of 0.2 m (20 cm) from persons within the
area.
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CBDA-PCSAC-10W80 INST-FCC.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: marketing@decolink.com web www.decolink.com
: ELECTRICAL SPECIFICATIONS
Frequency Range (MHz)
Uplink 1850-1910 MHz,
Downlink 1930-1990 MHz
Passband Gain @Min attenuation
80 dB nominal
Passband Ripple
± 1.8 dB typical
Manual Attenuation Range
0 to 30 dB in 2 dB step
Noise Figure
5.0 dB max
Impedance level
50 ohms
V.S.W.R In/Out
1.8 : 1 max
AGC Selection
By ON/OFF Switch
AGC Attenuation Range
25 dB typical
AGC LED Indication
LED turn ON when power reaches AGC Set
Power Level. (both at On and Off positions).
AGC Factory Power Preset
+24 dBm
Amplifier Power Output
@1 dB Compression
1 Watts
10Watts
3rd Order output Intercept point
45 dBm typical
50 dBm typical
Uplink 3rd Order IMD (dBc typ)
@ two tones +20 dBm each
50
Downlink 3rd Order IMD (dBc typ)
@ two tones +27 dBm each
45
Power Supply
110/220V AC, 50-60 Hz /1A
:ENVIRONMENTAL CONDITIONS
Operating temperature - 30°C to + 50°C
Storage temperature - 50°C to + 90°C
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CBDA-PCSAC-10W80 INST-FCC.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: marketing@decolink.com web www.decolink.com
:Mechanical Specifications
Size mm(Inch) 300(12) x 300(12) x150(6)
RF Connectors N-type Female
Weight 12 kg. Approx
MECHANICAL OUTLINE
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CBDA-PCSAC-10W80 INST-FCC.doc