B&B Electronics Zlinx Xtreme ZXT9-RM User manual
Document Number: ZXTxRM-5110m
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Zlinx®Xtreme
IP67 Radio Modem
ZXT9-RM ZXT24-RM
Model Number: ZXT9-RM, ZXT24-RM
Document Number: ZXTxRM-5110m
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Zlinx Xtreme IP67 Radio Modem
ZXTx-RM Series
Documentation Number: ZXTx-RM-2310m
This product was designed and manufactured in Ottawa, Illinois USA
Using domestic and imported parts by
International Headquarters
B&B Electronics Mfg. Co. Inc.
707 Dayton Road
Ottawa, IL 61350 USA
Phone: (815) 433-5100 General Fax: (815) 433-5105
Website: www.bb-elec.com
European Headquarters
B&B Electronics
Westlink Commercial Park
Oranmore, Co. Galway, Ireland
Phone: (+353) 91-792444 Fax: (+353) 91-792445
Website: www.bb-europe.com
Revision – Original – June 2010
©2010 B&B Electronics Mfg. Co. Inc. No part of this publication may be reproduced or transmitted in any form or by
any means, electronic or mechanical, including photography, recording, or any information storage and retrieval
system without written consent. Information in this manual is subject to change without notice, and does not
represent a commitment on the part of B&B Electronics Mfg. Co. Inc.
B&B Electronics Mfg. Co. Inc. shall not be liable for incidental or consequential damages resulting from the furnishing,
performance, or use of this manual.
All brand names used in this manual are the registered trademarks of their respective owners. The use of
trademarks or other designations in this publication is for reference purposes only and does not constitute an
endorsement by the trademark holder.
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Table of Contents
Contents
1.0Overview..........................................................................................................................................6
1.1PREREQUISITES ...........................................................................................................................................6
1.2SAFETY INFORMATION .................................................................................................................................6
1.3INSTALLATION INFORMATION .......................................................................................................................6
1.4ABOUT THIS MANUAL ...................................................................................................................................7
1.5PRODUCT FEATURES SUMMARY .................................................................................................................7
2.0Product Information........................................................................................................................8
2.1ZLINX®XTREME RADIO MODEM MODELS ...................................................................................................8
2.2PACKAGE CONTENTS...................................................................................................................................8
2.3MODES OF OPERATION................................................................................................................................8
2.3.1Point-to-Point Serial...........................................................................................................8
2.3.2Point-to-Point Serial to Xtreme I/O..................................................................................8
2.3.3Point-to-Multi Point (Serial or Xtreme I/O)......................................................................8
2.4OPERATING STATES ....................................................................................................................................8
2.4.1Idle State..............................................................................................................................8
2.4.2Transmit State.....................................................................................................................9
2.4.3Receive State......................................................................................................................9
2.4.4Sleep State..........................................................................................................................9
2.4.5Command Mode.................................................................................................................9
2.5USER INTERFACE COMPONENTS .................................................................................................................9
2.5.1Signal Strength (RSSI) LED’s..........................................................................................9
2.5.2Transmit LED....................................................................................................................10
2.5.3Receive LED.....................................................................................................................10
2.5.4Power LED........................................................................................................................10
2.5.5Internal User Interfaces...................................................................................................10
2.5.6Push Button.......................................................................................................................11
2.5.7USB Connector.................................................................................................................11
2.5.8Terminal Block..................................................................................................................12
2.5.9DIP Switch.........................................................................................................................12
3.0Hardware Installation...................................................................................................................13
3.1MECHANICAL DIAGRAM..............................................................................................................................13
3.2IP67 CABLE GLAND INSTALLATION ...........................................................................................................13
3.2.1CABLE GLAND DESCRIPTION .....................................................................................................................13
3.2.2CABLE GLAND INSTALLATION ....................................................................................................................14
3.3WATERTIGHT THREADED CONDUIT HUB ...................................................................................................14
3.3.1DESCRIPTION .............................................................................................................................................14
3.3.2WATER TIGHT THREADED CONDUIT INSTALLATION ..................................................................................14
3.4IP67 MEMBRANE CABLE GLAND ...............................................................................................................15
3.4.1DESCRIPTION .............................................................................................................................................15
3.4.2IP67 MEMBRANE CABLE GLAND INSTALLATION .......................................................................................15
3.5SUPPLIED ANTENNA...................................................................................................................................15
3.5.1ZXT9-RM SUPPLIED ANTENNA.................................................................................................................15
3.5.2ZXT24-RM SUPPLIED ANTENNA ..............................................................................................................16
3.6OPTIONAL ANTENNAS ................................................................................................................................16
3.6.1Omni Antenna Description..............................................................................................16
3.6.2Yagi Antenna Description................................................................................................18
3.7ANTENNA CABLES......................................................................................................................................20
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3.8LIGHTENING ARRESTORS ..........................................................................................................................21
4.0Electrical Installation....................................................................................................................22
4.1WIRING .......................................................................................................................................................22
4.1.1Terminal Block..................................................................................................................22
4.1.2Power Supply Connections.............................................................................................22
4.1.3RS-232 Connections........................................................................................................23
4.1.3.1RS-232 Signal Convention (DTE / DCE)..................................................................23
4.1.3.2Wiring an RS-232 Device to the Radio Modem.......................................................23
4.1.4RS-485 Two Wire Connections......................................................................................24
4.1.5RS-422/485 Four Wire Connections.............................................................................25
4.1.6Termination and Biasing..................................................................................................25
4.1.7Fault Output.......................................................................................................................26
5.0Software Installation.....................................................................................................................28
5.1ZLINX®MANAGER SOFTWARE OVERVIEW.................................................................................................28
5.1.1Computer System Requirements...................................................................................28
5.2INSTALLING ZLINX®MANAGER SOFTWARE ...............................................................................................28
5.2.1Installing Zlinx®Manager Software................................................................................28
5.2.2Installing USB Drivers......................................................................................................32
5.3STARTING ZLINX®MANAGER SOFTWARE..................................................................................................32
5.3.1Starting the manager software.......................................................................................32
5.3.2Radio Modem Configuration Screen.............................................................................33
5.3.2.1Radio Modem Settings (ZXT9-RM)...........................................................................40
5.3.2.2Radio Modem Settings (ZXT24-RM).........................................................................50
5.3.3Radio Modem Configuration Screen (Off-Line)...........................................................57
5.3.4Radio Modem Firmware Update Screen......................................................................58
5.3.5Return to Manager...........................................................................................................58
5.3.6Exit......................................................................................................................................58
6.0Startup and Configuration...........................................................................................................59
6.1BASIC SETTINGS ........................................................................................................................................59
6.1.1CHANNEL NUMBER.....................................................................................................................................59
6.1.2NETWORK IDENTIFIER ................................................................................................................................59
6.1.3BAUD RATE,STOP BITS,PARITY,AND FLOW CONTROL ..........................................................................59
6.2ADVANCED SETTINGS ................................................................................................................................59
6.3RF MODEM OPERATION ............................................................................................................................60
6.3.1TRANSPORT OPERATION ...........................................................................................................................60
6.3.2SERIAL TO RF PACKETIZATION..................................................................................................................60
6.3.3API OPERATION .........................................................................................................................................60
6.3.4FLOW CONTROL .........................................................................................................................................61
6.3.5SLEEP MODE..............................................................................................................................................62
6.3.5.1PIN SLEEP MODE...................................................................................................................................62
6.3.5.2SERIAL PORT SLEEP MODE ..................................................................................................................62
6.3.5.3CYCLE SLEEP MODE .............................................................................................................................63
6.3.6COMMAND MODE .......................................................................................................................................63
6.3.6.1MODEM CONFIGURATION SWITCH ........................................................................................................64
6.3.6.2AT COMMAND MODE.............................................................................................................................64
6.3.6.3ENTERING AT COMMAND MODE ...........................................................................................................64
6.3.6.4SENDING AT COMMANDS......................................................................................................................64
6.3.6.5EXIT AT COMMAND MODE ....................................................................................................................64
6.3.6.6BINARY COMMAND MODE .....................................................................................................................65
6.4ZXT9-RM CONFIGURATION ......................................................................................................................66
6.4.1ADVANCED PROGRAMMING .......................................................................................................................66
6.4.1.1PROGRAMMING EXAMPLES USING AT COMMANDS...............................................................................66
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6.4.1.2PROGRAMMING USING BINARY COMMANDS ..........................................................................................66
6.4.2COMMAND REFERENCE TABLE..................................................................................................................67
6.4.2.1COMMAND DESCRIPTIONS.....................................................................................................................69
6.5ZXT24-RM CONFIGURATION ....................................................................................................................90
6.5.1ADVANCED PROGRAMMING .......................................................................................................................90
6.6FIRMWARE UPDATE .................................................................................................................................139
6.6.1CAUTION...................................................................................................................................................139
6.6.2FIRMWARE UPDATE PROCEDURE.............................................................................................................139
7.0Use Cases...................................................................................................................................141
7.1POINT-TO-POINT SERIAL .........................................................................................................................141
7.1.1USE CASE PARAMETERS .........................................................................................................................141
7.1.1.1SETUP INSTRUCTIONS .........................................................................................................................141
7.2POINT-TO-POINT SERIAL TO XTREME I/O ...............................................................................................146
7.2.1USE CASE PARAMETERS .........................................................................................................................146
8.0Testing and Trouble Shooting..................................................................................................147
8.1RSSI RANGE TEST ..................................................................................................................................147
A.Appendix A – Specifications.........................................................................................................149
B.Appendix B – Default Configurations..........................................................................................152
B.1Restore Default Configurations................................................................................................152
B.2ZKT9-RM Default Configuration...............................................................................................152
B.3ZKT24-RM Default Configuration............................................................................................153
C.Appendix C – Dimensional Diagram / Mounting Instructions..............................................155
C.1DIMENSIONAL DIAGRAM...........................................................................................................................155
C.2MOUNTING................................................................................................................................................156
C.3SUPPLIED ANTENNA.................................................................................................................................157
D.Appendix D – Radio Frequency Basics..................................................................................159
D.1WHAT IS DBM?.........................................................................................................................................159
D.2Lower Frequencies = Better Propagation.......................................................................159
D.3Range is not just a function of transmitter power..........................................................159
D.4You must consider RF noise............................................................................................160
D.5Fade Margin is critical for reliable operation in adverse weather and interference..160
D.6Remember Your Math.......................................................................................................161
D.7RF Attenuation and Line of Sight.....................................................................................161
D.8Path Loss Rule of Thumb..................................................................................................162
D.9Antennas..............................................................................................................................162
D.10Cable Loss.......................................................................................................................162
D.11Latency and Packetization............................................................................................163
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Section One – Overview
1.0 Overview
1.1 Prerequisites
This manual assumes you have a basic understanding of wireless communications, Serial Protocols
(RS-232/422/485), and basic electronics.
1.2 Safety Information
WARNING
Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard
for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment
as a result of its actions in Docket 93-62 and OET Bulleting 65 Edition 97-01.
1.3 Installation Information
Operating Voltage 10 to 30 VDC
Maximum Surrounding Ambient Air Temp 74°C
Wiring Terminals Use Copper Wire Only, One Conductor Per Terminal
Wire Range 30 to 12 AWG
Tightening Torque 0.5 to 0.6 Nm
Temperature Rating of Field Installed Conductors 105°C minimum, sized for 60°C ampacity.
DO NOT Operate unless all RF connectors are secure and any open connectors are
properly terminated
DO NOT Operate the equipment near electrical blasting caps or in an explosive
atmosphere.
All equipment must be properly grounded for safe operations. All equipment should be
serviced only by a qualified technician.
A separation distance of 20 cm or more should be maintained between the antenna of
this device and persons during device operation. To ensure compliance, operation at
closer than this distance is not recommended. The antenna used for this device must not
be co-located in conjunction with any other antenna or transmitter.
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1.4 About this Manual
This manual has been created to assist you in installing, configuring, operating, and trouble shooting
your Zlinx®Xtreme Radio Modem.
It is divided into eleven major sections.
Product Information – covers what is included with your radio modem, operating modes, operating
states, and user interface components.
Hardware Installation – covers how to install your radio modem. Additional information is provided
about RF considerations, accessory antennas, and cable selection.
Electrical Installation – covers wiring connections and powering your radio modem.
Software Installation – covers installing the manager software and basic software functionality.
Startup and Configuration – contains more detailed information about how to configure your radio
modem.
Use Cases – contains information concerning the most widely used configurations.
Testing and Troubleshooting – contains information about trouble shooting aids.
Appendix – has additional information.
1.5 Product Features Summary
Need to extend an RS-232/422/485 signal across a highway or across the building? Your Zlinx ®
Xtreme Radio Modem will do the job faster, easier, and less expensively than stringing cable. The
Zlinx ®Xtreme Radio Modem connects serial devices which can be set up in point to point or point to
multi point networks. Easy plug-and-play set-up saves installation and maintenance time. In addition,
Zlinx ® Xtreme Radio Modem meets the IP67 standard and is built to handle the heat, cold, and
environments of industrial operations.
•Modbus compatible – no additional converters needed
•RS-232, 422, 485 (2-Wire & 4-Wire) serial communications
•Frequency range: ISM band, 902 to 928 MHz or 2.4 to 2.5 GHz
•Signal strength indicators aids troubleshooting.
•900 MHz or 2.4 GHz antenna included.
•256 Bit AES Encryption
•Wide, -40 to 74°C, Operating Temperature
•Rugged Circuitry for Indoor and Outdoor Applications
•IP67 Rated for total protection against dust and water up to 1 meter
•Software support Windows XP, Vista, and 7 (32 / 64 Bit)
•Field Upgradable Firmware
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Section Two – Product Information
2.0 Product Information
2.1 Zlinx®Xtreme Radio Modem Models
ZXT9-RM - 900 MHz ISM Band Radio Modem
ZXT24-RM – 2.4 GHz ISM Band Radio Modem
2.2 Package Contents
9Zlinx®Xtreme Radio Modem
9Software CD
9Quick Start Guide
9Antenna
9IP67 Cable Gland
9Watertight Threaded Conduit Hub
9IP67 Membrane Cable Gland
9Enclosure Mounting Ears and hardware
2.3 Modes of Operation
2.3.1 Point-to-Point Serial
This configuration is used to wirelessly transmit serial data from one location to another. A
Zlinx®Xtreme Radio Modem is configured with another radio modem of same frequency in
a master slave relationship to transmit serial data wirelessly. Typical applications include
connecting a device such as a pressure/flow transmitter to a PLC or SCADA system.
2.3.2 Point-to-Point Serial to Xtreme I/O
This configuration is employed to connect a PLC/HMI/SCADA system to a remote Xtreme
I/O or Zlinx I/O module to monitor or control discrete devices via Modbus. The serial
master (PLC/HMI/SCADA) is a Modbus RTU master and must be connected to the serial
port of the Radio Modem. Each Xtreme I/O device populates and updates its own Modbus
map and support Modbus RTU Slave format. The radio modem is connected to the
respective Modbus Master. Typical examples include a Water tank monitoring system
where a float sensor level data is transmitted to a HMI through the wireless network.
2.3.3 Point-to-Multi Point (Serial or Xtreme I/O)
A Radio Modem is configured to communicate with multiple other modems or I/O
modules. The “master” modem is connected to the Modbus Master and can communicate
with Modbus Slaves connected to other radio modems or Xtreme I/O units. An example is
a PLC Process control/monitoring application requiring analog, digital and serial data to be
brought to a central PLC.
2.4 Operating States
The Zlinx®Radio Modem has six operating states.
2.4.1 Idle State
• Checks for Valid RF Data received and discards invalid data
• Checks for serial data to be packaged and RF transmitted
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• Received Valid RF data in buffer to be output serially
• Checks if Sleep Mode condition is met
• Checks for Command Mode commands
2.4.2 Transmit State
• Packages serial data (2048 bytes max in RF packet)
oZXT9RM – 2048 bytes max
oZXT24RM – 202 bytes max
• Returns to Idle State
2.4.3 Receive State
• Switches to Receive State to start receiving RF packets if RF data was detected while
in the Idle State
• Returns to Idle State when data is no longer detected or an error is detected
2.4.4 Sleep State
• This allows the radio modem to enter a state of low power consumption when not in
use.
2.4.5 Command Mode
•Enters AT Command mode with +++ sent to serial input with Guard Time before and
after. Exits after Timeout. The guard times and the entry characters are user
configurable.
2.5 User Interface Components
2.5.1 Signal Strength (RSSI) LED’s
There are eight green LED’s to indicate signal strength (Received Signal Strength
Indicator / “RSSI”). They are arranged to indicate RSSI from weakest (bottom LED lighted)
to strongest (all eight LED’s lighted). See figure 2-1.
Figure 2-1 RSSI Indicator
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2.5.2 Transmit LED
The green transmit LED flashes when data is transmitted out the serial port. See figure 2-
2 below.
2.5.3 Receive LED
The green receive LED flashes when data is received by the serial port. See figure 2-2
below.
Figure 2-2 Transmit and Receive LED’s
2.5.4 Power LED
The green power LED is ON when power is applied.
Figure 2-3 Power LED
2.5.5 Internal User Interfaces
The remaining user interfaces are located inside the radio modem enclosure. To access
these interfaces, the cover must be removed. The cover is held in place with four plastic
Phillips style screws.
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2.5.6 Push Button
Push Button PB1 is located on the circuit board behind the radio modem cover. It is used
to restore the serial port the default condition. To do this, press and hold the button for
about five seconds. Default settings will be restored and the radio modem will start in
command mode. This is not the preferred method to enter Command Mode. Default
settings are:
•Baud rate = 9600
•Data bit = 8
•Parity = None
•Stop bit = 1
Figure 2-4 Push Button
2.5.7 USB Connector
The USB connector is located on the circuit board inside the radio modem enclosure. It is
used to connect a PC to the radio modem to perform configurations and firmware updates.
The connector is a type b female. Any commercially available USB cable can be used to
connect to the radio modem. Figure 2-5 shows the USB Connector location.
Figure 2-5 USB Connector
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2.5.8 Terminal Block
The terminal block is used to connect serial signals and power. Figure 2-6 shows the
location.
Figure 2-6 Terminal Block
2.5.9 DIP Switch
OFF
ON Switch RS-
232 RS-422 RS-485 4-
Wire RS-485 2-
Wire
4 Wire 2 Wire 1 OFF OFF OFF ON
4 Wire 2 Wire 2 OFF OFF OFF ON
Termination Out Termination In 3 OFF OFF* OFF* OFF*
RS-422 RS-485 4 OFF OFF ON ON
Note: The use of built in termination is optional and depends on your application
Note: For RS-232 operation, set all switches OFF
Figure 2-7 DIP Switch
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Section Three – Hardware Installation
3.0 Hardware Installation
3.1 Mechanical Diagram
The mechanical diagram in Appendix C contains information for mounting your radio modem.
3.2 IP67 Cable Gland Installation
3.2.1 Cable Gland Description
The Cable Gland is used to maintain the water tight rating while allowing a cable to enter
the enclosure. The assembly consists of black molded nylon body, hex nut, cable nut and
a rubber gasket and cable seal.
Figure 3-3 IP67 Cable Gland
Figure 3-4 IP67 Cable Gland
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3.2.2 Cable Gland Installation
1. The cable gland will accept cable diameters from 0.236 to 0.472 inches (5.99 to 11.99
mm).
2. Insert the Non-tapered end of the Body (D) through the conduit knock-out on the radio
modem enclosure.
3. Place the Gasket around the body on the outside of the enclosure.
4. Thread the Hex Nut onto the Body from the inside of the enclosure.
5. Place the Cable Nut onto the cable being careful to position the threaded side so that
it can be attached to the Cable Body.
6. Tighten the Cable Nut. This will cause the tapered end of the Cable Body to
compress, ensuring a water-tight seal.
3.3 Watertight Threaded Conduit Hub
3.3.1 Description
Another method to bring a cable into the enclosure is to use the water tight threaded
conduit hub. It is used to secure threaded half inch rigid service entrance conduit. It
consists of a Body, Nut, and Gasket.
Figure 3-5 ½ Inch Threaded Conduit Hub
Figure 3-6 ½ Inch Threaded Conduit Hub
3.3.2 Water Tight Threaded Conduit Installation
1. Insert the treaded end of the body into the conduit knock-out from the outside of the
enclosure. The rubber gasket should be on the outside of the enclosure.
2. Thread the Nut onto the conduit body from inside the enclosure.
3. 1/2 and 3/8 inch conduit fittings as well as 1/2 Inch, rigid, threaded conduit can be
attached to the threaded hub.
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3.4 IP67 Membrane Cable Gland
3.4.1 Description
Themembranecableglandisusedtopluganunusedholeintheenclosure.
Figure 3-7 IP67 Membrane Cable Gland
3.4.2 IP67 Membrane Cable Gland Installation
1. Stuff the cable gland into the knock-out hole with the narrow end toward the inside of
the radio modem enclosure. The enclosure wall will fit into the indentation between
the inside and outside portions of the gland.
3.5 Supplied Antenna
3.5.1 ZXT9-RM Supplied Antenna
Your Zlinx Xtreme 900 MHz product comes supplied with a “rubber duck” style antenna
which can be articulated up to 90 degrees. Then antenna is a ¼ wave dipole with an omni
directional pattern and vertical polarization. It is recommended that your Zlinx Xtreme
product be mounted vertically.
Figure 3-8 ZXT9-RM Supplied Antenna
Impedance 50Ω
Connector RPSMA Female
VSWR 2.0 Max (in-band)
Gain 3.0 dBi
Polarization Vertical
Replacement Part Number ZXT9-ANT1
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3.5.2 ZXT24-RM Supplied Antenna
Your Zlinx Xtreme 2.4 GHz product comes supplied with a “rubber duck” style antenna
which can be articulated up to 90 degrees. Then antenna is a ¼ wave dipole with an omni
directional pattern and vertical polarization.
It is recommended that your Zlinx Xtreme product be mounted with the antenna on the
top, perpendicular with the horizon
Figure 3-9 ZXT24-RM Supplied Antenna
Impedance 50Ω
Connector RPSMA Female
VSWR 2.0 Max (in-band)
Gain 2.1 dBi
Polarization Vertical
Replacement Part Number ZZ24D-ANT1
3.6 Optional Antennas
3.6.1 Omni Antenna Description
In some applications, a higher gain Omni directional antenna may be required. An Omni-
directional antenna is an antenna system which radiates power uniformly in one plane with
a directive pattern shape in a perpendicular plane. This pattern is often described as
"donut shaped". Omni-directional antenna can be used to link multiple directional
antennas in outdoor point-to-multipoint communication.
Omni Directional antennas are a good choice if you need to mount your antenna on a
mast to increase its elevation. Please note that mounting brackets must also be
purchased. Also note that these antennas have an N style connector. Refer to section 3.9
to select the correct cable.
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Figure 3-10 Representative Photograph of Optional Omni Antenna
FG9023 – High Gain Omni Directional (900 MHz)
Use With ZXT9-RM (900 MHz)
Impedance 50Ω
Connector N Female
VSWR 2:1 Max (In Band)
Gain 3 dBi
Polarization Vertical
Length 25 inches (63.5 cm)
Mounting Brackets (Not Included) FM2
FG9026 – High Gain Omni Directional (900 MHz)
Use With ZXT9-RM (900 MHz)
Impedance 50Ω
Connector N Female
VSWR 2:1 Max (In Band)
Gain 6 dBi
Polarization Vertical
Length 65 inches (165.1 cm)
Mounting Brackets (Not Included) FM2
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FG24008 – High Gain Omni Directional (2.4 GHz)
Use With ZXT24-RM (2.4 GHz)
Impedance 50Ω
Connector N Female
VSWR 1.5:1 Max (In Band)
Gain 8 dBi
Polarization Vertical
Length 24.5 inches (62.2 cm)
Mounting Brackets (Not Included) FM2
3.6.2 Yagi Antenna Description
A Yagi-Uda Antenna, commonly known simply as a Yagi antenna or Yagi, is a directional
antenna system consisting of an array of a dipole and additional closely coupled parasitic
elements (usually a reflector and one or more directors). The dipole in the array is driven,
and another element, typically 5% longer, effectively operates as a reflector. Other
parasitic elements shorter than the dipole may be added in front of the dipole and are
referred to as directors. This arrangement increases antenna directionality and gain in the
preferred direction over a single dipole.
Since Yagi Antennas are directional, they must point directly at the other antenna
through a clear line of sight.
Figure 3-11 Enclosed Yagi – Model YE240015 for 2.4 GHz Models
Figure 3-12 Representative Yagi Antenna Photograph
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YS8963 – High Gain Yagi (900 MHz)
Use With ZXT9-RM (900 MHz)
Impedance 50Ω
Connector N Female
VSWR 1.5:1 Max (In Band)
Gain 6 dBi
Polarization Vertical
Length 16.8 inches (42.7 cm)
Mounting Brackets Included
YS8966 – High Gain Yagi (900 MHz)
Use With ZXT9-RM (900 MHz)
Impedance 50Ω
Connector N Female
VSWR 1.5:1 Max (In Band)
Gain 9 dBi
Polarization Vertical
Length 27.8 inches (70.6 cm)
Mounting Brackets Included
YS89612 – High Gain Yagi (900 MHz)
Use With ZXT9-RM (900 MHz)
Impedance 50Ω
Connector N Female
VSWR 1.5:1 Max (In Band)
Gain 11 dBi
Polarization Vertical
Length 49 inches (124.5cm)
Mounting Brackets Included
YS24008 – High Gain Yagi (2.4 GHz)
Use With ZXT24-RM (2.4 GHz)
Impedance 50Ω
Connector N Female
VSWR 1.5:1 Max (In Band)
Gain 12.5 dBi
Polarization Vertical
Length 18 inches (45.7 cm)
Mounting Brackets Included
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3.7 Antenna Cables
If you decide to use one of the optional antennas, you will need to select the appropriate cable and
connector. It is important to select a cable that matches the radio’s impedance. An impedance
mismatch will cause the radio link to become inefficient and could damage the radio. Selecting the
incorrect cable could also cause significant signal loss. A rule of thumb is for every 3 dB of loss, your
system will lose one half the output power emitted from the radio.
We offer three basic cable types. LMR100, LMR195, and LMR400. LMR400 cable offers lower loss
but is thicker and more difficult to work with. LMR100 is thin and easy to work with, but has a larger
loss. It is recommended that you use the shortest possible cable run in your application.
Cable Type 900 MHz Loss Per 100 ft 2.4 GHz Loss Per 100 ft Diameter
LMR-100 22.8 dB 38.9 dB 0.110 in
LMR-195 11.5 dB 19.0 dB 0.195 in
LMR-400 3.9 dB 6.8 dB 0.405 in
Figure 3-13 LMR400 Cable Cross Section
Figure 3-14 LMR195 Cable Cross Section
Figure 3-15 LMR100 Cable Cross Section
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