WJ Communications R820 Datasheet

WJ Communications: The Cell Extenders

Repeaters

R820

4 Watt Cellular Repeater

CDMA,TDMA, AMPS

oles in your digital cellular network

can result in dropped calls, frustrated
subscribers, and lost revenue. Solve your
network coverage problems quickly and
easily with WJ Communications’ R820
cellular repeater. The “over the air” repeater
extends base station coverage to shadow
areas caused by hills, large buildings, and
other structures that can obstruct cellular
signals. WJ repeaters can also be used as an
efficient and low cost alternative to base sta­tions in areas where coverage is more critical
than additional capacity. The R820 has a
multi-carrier high power output at a fraction
of the cost of a base station.

WJ R820 repeaters are band selective, so
they only amplify and extend coverage of
your frequencies. Small and easy to install,
the R820 repeater is designed for one person
installation. The Windows™ compatible
software and remote interface allows control
of the gain and monitoring of the alarms.
The unit is housed in a rugged and weather
resilient NEMA4 enclosure.

■

Low Cost Base Station Alternative

■

Extends Cellular Coverage

■

High Output Power

■

Easy Installation

■

Low Cost

Windows is a registered trademark of Microsoft Corporation.

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1-800-WJ1-4401•FAX: [phone]•e-mail: [e-mail]

The Communications Edge

™

R820

4 Watt Cellular Repeater

CDMA, TDMA, AMPS

WJ Communications: The Cell Extenders

Repeaters

14.40

3.75

3.573.43

4X .188

8.40

15.90

ACCESS PANEL FOR AC/DC
CONTROL CONNECTIONS

2X CONDUIT FEED THRU

PIN 1

ALL DIMENSIONS IN INCHES

Specifications

Frequency Range Amps band A or B

Output Power 4 Watts
Noise Figure 5 dB Typical @ max gain, 6 dB Typical @ min gain
Gain Range 55 dB to 85 dB
Gain Steps 2 dB
Signal Delay 5 µsec.
RF Connectors Type N
Power supply 110/220 VAC 50/60 Hz or +24 VDC Battery backup available
Alarms & Status Synthesizers, Amplifiers, Power Amplifiers, Power Supply, Temperature,

Gain, Output power
Interface RS-232 and modem
Control Gain
Cooling Convection
Temperature Operating: -40 to +50 C Storage: -40 to +85 C
Weight 55 lbs
Weather Resistance NEMA 4 rated, IP65

OUTLINE DRAWING

WJ COMMUNICATIONS, INC.• 401 River Oaks Parkway • San Jose, CA 95134

The Communications Edge

™