Andrew 24GCA Spread spectrum transmitter with amplifier User Manual 237726 8 page

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Document ID	245548
Application ID	qhQNIRnGHH7iEj/YXppNjw==
Document Description	Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	48.48kB (605983 bits)
Date Submitted	2002-05-28 00:00:00
Date Available	2002-05-24 00:00:00
Creation Date	2001-12-07 14:33:25
Producing Software	Acrobat Distiller 4.05 for Windows
Document Lastmod	2002-05-18 05:39:17
Document Title	237726 8 page.qxd
Document Creator	Pscript.dll Version 5.0
Document Author:	bstansfi

Bulletin 237726
UltraSpan™
Integrated Antenna/Gain-c
controlled,
Bi-d
directional Amplifier
2.4-2.5 GHz ISM Band, 420 mW Version
User and Installation Manual
Important Notice:
This equipment complies with Part 15 of the U.S. FCC Rules and
Regulations. Any changes or modifications, not expressly approved by
the manufacturer, could void the user's authority to operate the equipment.
Table of Contents
System Description . . . . .
Operation . . . . . . . . . . . .
Features . . . . . . . . . . . . .
Typical System . . . . . . . .
Installation Instructions . .
Operating Instructions . . .
Specifications . . . . . . . . .
Functional Block Diagram
.2
.3
.3
.4
.5
.7
.8
.8
System Description
The UltraSpan™ antenna/amplifier system extends the operating range of broadband wireless systems operating in the 2400-2500 MHz spread spectrum band.
The basic unit consists of a MICROCEPTOR® antenna and a built-in bi-directional
amplifier operating in Time-Division Duplex (TDD) mode. It features intelligent
algorithm and Automatic Gain Controlled (AGC) circuits which maintain transmit
power and prevent transmit signal saturation, thus minimizing signal distortion.
The system also includes a universal power supply, a DC power inserter, and
mounting hardware.
Applications
Antenna
The UltraSpan system has applications in a wide range of wireless systems
where TDD technology is used, such as Wireless Local Area Network (WLAN),
Wireless Local Loop (WLL), Wireless Internet Access (WIA), and wireless modem
connection with point-to-point systems.
MICROCEPTOR Antennas are small, aesthetically pleasing antennas for broadband applications. They feature a patented feed design for excellent directivity in
a low profile package.
Automatic Gain Control
(AGC)
This key feature automatically detects the power level and adjusts the amplifier
gain to allow for system variables. For example, the AGC adjusts for different
interconnecting cable lengths and radio modems with different output powers.
The AGC Transmit Amplifier is fully operational in a wide transmit input power
range of 1 to 200 mW. An input signal of 2.5 mW delivers the maximum U.S.
FCC specified power level. The AGC attenuates input signals greater than 4 dBm
and maintains a maximum output power of 26.2 dBm.
Low Noise Amplifier
The amplifier is built into the back of the MICROCEPTOR antenna and is
encased in a weatherproof enclosure. It features a low noise amplifier and an RF
filter that decreases potential RF interference and overload caused by out-ofband frequencies, such as those received from higher power wireless communication systems.
Universal Power
Supply
Mounting Hardware
Amplifier Comparison
110/220 VAC to 7.5 VDC converter.
DC Power Inserter injects the 7.5 VDC onto the coaxial feeder cable to power
the low noise amplifier.
Standard Mounting Hardware consists of a mast clamp and L bolt. Optional
Elevation Adjustable Mount is available.
The table compares the UltraSpan™ amplifier with other TDD antenna-mount
amplifiers.
Transmit gain
ULTRASPAN™
Intelligent self adjusted
Other TDD Amplifiers
Fixed
Transmit power level
Maintained
Varies, depending on
input power level
Transmit signal distortion Minimized at all times
Much worse at high input
power levels
Input power range
requirements
Wide range accepted
Designed for narrow
range only
Amplifier Mounting
Configuration
Built into the Antenna
Usually tower mounted
requiring separate instal
lation
Operation
The universal power supply provides the DC power; the radio modem supplies
the RF signal. Both connect to the dc power inserter. The radio signal and the
DC voltage are supplied to the antenna/amplifier via coaxial cable (not included). The antenna installs on a mast.
The system operates automatically and no user adjustments are required.
Features
•
•
•
•
•
•
•
•
•
Automatic gain control minimizes signal distortion.
Wide range of transmit input levels (1.4 mW to 200 mW).
Low noise amplifier provides system noise figure of 3.5 dB.
Universal, auto switching, 110/220 VAC to 7.5 VDC power adapter.
Green LED indicates DC power on.
DC ground for lightning protection.
Power inserter equipped with surge protection.
Industry standard "N" connectors ("F" connectors optional).
Weatherproof, outdoor enclosure.
Typical System
UltraSpan Antenna/Amplifier
Model QD-24-0010 (50 Ohm)
Model QD-24-0040 (75 Ohm)
Optional 60 degree
Elevation Adjustable Mount
Model L-BRACKET and
13/18-MTG-HDW
Optional DBS Mount
Model DS-1000 (white)
Model DGS-1000 (gray)
Power Supply
Model WT-GCA
Coaxial Cable (not supplied)
50 Ohm or 75 Ohm, model dependent
DC Power Inserter
Model PI-GCA24-0010 (50 Ohm)
Model PI-GCA24-0040 (75 Ohm)
model dependent
Radio Modem
Adapter Cable
(not supplied)
Figure 1 - Typical System
System Components
•
•
•
•
UltraSpan™ Antenna/Amplifier
Power Inserter
Power Supply
Connecting Cables (not supplied)
Radio Modem Adapter Cable
Antenna/LNA Feeder Cable
Agere Systems PC LAN card (FCC ID.: IMRWLPCE24H
The Power Inserter combines the RF signal from the Radio Modem (not shown)
with the 7.5 VDC power from the Power Supply.
The combined DC power and RF signal are fed to the Antenna/Amplifier using
coaxial cable (not included).
The Antenna/Amplifier mounts to a mast using the included mounting bracket.
Installation Instructions
Notice:
The installation, maintenance, or removal of antenna systems requires qualified, experienced personnel. Andrew installation instructions have been written for such personnel.
Antenna systems should be inspected once a year by qualified personnel to verify proper
installation, maintenance, and condition of equipment.
FCC exposure limits require minimum separation of 2 m between the user and the
radiating elements.
Andrew disclaims any liability or responsibility for the results of improper or unsafe installation practices.
Mount Antenna
Select Antenna Polarization. Use antenna polarity indicator on back
cover (see Figure 2). Rotate antenna 90° to change polarity.
Antenna Polarity Indicator
(shown Horizontal polarity)
Rotate Antenna 90 degrees
Counterclockwise for Vertical Polarity
Antenna RF Connector
Type 'N' Female model QD-24-0010
(50 Ohm Shown)
Type 'F' Female model QD-24-0040
(75 Ohm)
Figure 2 - Back Cover Details
Standard
Mounting Bracket
Assemble Mast Clamp (Figure 3) to Mast Bracket. Slide mast clamp
legs into slot on mast bracket (Figure 4), then slide up to top of the slot
(Figure 5).
Figure 4 (Antenna
Removed for Clarity)
Figure 3 - Mast
Clamp
Figure 5 (Antenna
Removed for Clarity)
Mount to Mast (Figure 6).
Slide unit with mast clamp
over suitable mast (up to 2 inches) and secure with included L
Bolt.
Figure 6 - Unit
Mounted to Mast
Installation Instructions (Cont'd.)
Antenna Connections
Connect Antenna Coax
to Power Inserter
(Figure 7). Use coaxial cable
equipped with two N male connectors (for 50-ohm models) or
two F male connectors (for 75ohm models). Cable and connectors are not supplied.
Figure 7 - Antenna
RF Connection
DC Power Inserter
Connections,
Indicators, and Labels
CAUTION:
The Power Inserter injects DC power into the RF cable. The power is carried to
the amplifier with the RF signal via the Antenna Coax.
Improperly connected cables may cause damage to the power inserter,
radio modem, or another device in line between the power inserter and the
radio modem.
Connect Antenna Coax
(not supplied) to Power
Inserter connector marked
'To Amplifier'
DC Power Inserter
Power Supply
Connect Radio Modem Adapter
(not supplied) to DC Power
Inserter connector marked
'To Radio'
Radio Modem
Adapter Cable
(not supplied)
Figure 8 - DC Power Inserter Coax Connections
"To Radio" Connection (Figure 8). N female. Install Radio Modem
Adapter Cable (not supplied) to connect the DC power inserter with the
radio modem.
"To Amplifier" Connection (Figure 8). N female (50 ohm cable) or F
female (75 ohm cable). Install Antenna/Amplifier Coaxial Cable (not supplied). The cable options are a 50-ohm cable with Type N male connectors or a
75-ohm cable with Type F male connectors, depending on the model chosen.
Green LED illuminates when
power is applied
Power Supply
Connect Power Supply
to Power Inserter
Figure 9 - DC Power Inserter Power Connection
DC Power Supply (Figure 9). Install the Power Supply and connect its
cord to the Power Inserter. The power supply provided with the unit is a
universal type, 110/220 VAC to 7.5 VDC converter. The Green LED on the
Power Inserter indicates that dc power is on.
Antenna Signal Alignment. Direct the front of the antenna towards the
desired signal and verify signal level. Elevation adjustment of the antenna may be necessary depending on proximity to system headend.
Waterproof the Antenna Connector. Once the unit is installed and tested, waterproof the antenna connector.
Operating Instructions
The unit operates automatically and no user adjustments are required.
The amplifier is designed for 2.4 GHz radios using Time Division Duplex (TDD)
mode of operation. It is equipped with a high speed Tx/Rx switch that detects
transmit signal and switches to transmit mode within 600 nano-seconds. In the
absence of any transmit signal, the unit stays in receive mode. The amplifier
cannot be used with a radio device that uses separate bands for transmit and
receive in a true full duplex mode.
The system is currently approved for use with the following radio LAN cards:
1) Agere systems PC LAN FCC ID.: IMRWLPCE24H
Specifications
General
Frequency Band
Operating Mode
Maximum Transmit Output Power
Transmit Input Power
Transmit Gain
Antenna Gain
Receive Gain
Frequency Flatness
Noise Figure
Lightning Protection
DC Surge Protection
Operating Temperature
Power Supply
RF Connector
Dimensions
Weight with Standard Mounting Kit
2400 - 2500 MHz
Bi-directional TDD
+26.2 dBm (420 mW)
0 dBm min, 23 dBm max
Automatically adjusts up to 23 dB
16 dBi ± 1 dB
14 dB
±1.0 dB
3.5 dB
Ground connection at antenna port
At 7.5 VDC input
-40°C to + 70°C
7.5 VDC at 0.7 amp
Type N, Female or Type F, Female
10.75" x 11"
2.2 lb
Transmit Power Gain at 2.45 GHz and 25°C
Input Level, at amplifier
1.3
1.6
2.5
50
100
200
mW
mW
mW
mW
mW
mW
mW
mW
(0 dBm)
(1 dBm)
(2 dBm)
(3 dBm)
(4 dBm)
(17 dBm)
(20 dBm)
(23 dBm)
Typical Output Level
250
280
330
380
420
420
420
420
mW
mW
mW
mW
mW
mW
mW
mW
Above 2.5 mW input, the amplifier attenuates the input signal power and maintains the output power typically at 420 mW.
CAUTION:
Do not exceed 200 mW (+23 dBm) of input power to the amplifier.
Functional Block Diagram
Andrew Corporation
Telephone: 708/349-3300
FAX (U.S.A.): 1-800-349-5444
10500 West 153rd Street
Orland Park, IL U.S.A. 60462 Internet: http:/www.andrew.com
Customer Service, 24 hours: U.S.A. • Canada • Mexico: 1-800/255-1479
U.K.: 0800 250055
Other Europe: +44 1592 782612
Printed in U.S.A. 12/01
Copyright © 2001 by Andrew Corporation

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Create Date                     : 2001:12:07 14:33:25Z
Modify Date                     : 2002:05:18 05:39:17-04:00
Page Count                      : 8
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Creation Date                   : 2001:12:07 14:33:25Z
Producer                        : Acrobat Distiller 4.05 for Windows
Author                          : bstansfi
Mod Date                        : 2002:05:18 05:39:17-04:00
Metadata Date                   : 2002:05:18 05:39:17-04:00
Creator                         : bstansfi
Title                           : 237726 8 page.qxd

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