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MHX 910A Operating Manual: Appendix A Approved Antennas

 

15

 

A. Approved 

Antennas 

Group Part 

Number 

Description 

Quarter Wave 

  

  

 

MHS031010 

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Right Angle 

 

MHS031020 

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Straight 

 

MHS031030 

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Right Angle MHS 

 

MHS031040 

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Straight MHS 

 

MHS031050 

<1.5dBi, 900MHz 1/4 Wave Antenna MCX Right Angle MHS 

 

MHS031060 

<1.5dBi, 900MHz 1/4 Wave Antenna Reverse SMA Straight 

 

 

 

Rubber Ducky 

  

  

 

MHS031000 

2dBi, 900MHz Rubber Ducky Antenna RPTNC Swivel 

 

MHS031070 

2dBi, 900MHz Rubber Ducky Antenna Reverse SMA Swivel 

 

MHS031080 

2dBi, 900MHz Rubber Ducky Antenna Reverse SMA Straight 

 

 

 

Transit Antennas 

  

  

 

MHS031210  

3dBd, 900 MHz Transit Antenna with Ground Plane  

 

MHS031220 

3dBd, 900MHz Transit Antenna No Ground Plane  

 

MHS031230 

3dBd, 900MHz Transit Antenna Permanent Mount GP  

 

MHS031240  

3dBd, 900MHz Transit Antenna Permanent Mount NGP  

 

 

Mounts for Transit Antennas have a RPTNC Pigtail 

Yagi Antennas 

  

  

 

MHS031311 

6dBd, 900MHz Yagi Directional Antenna Antenex, RPTNC Pigtail 

 

MHS031431 

6.5dBd, 900MHz Yagi Directional Antenna Bluewave, RPTNC Pigtail 

 

MHS031501 

9dBd, 900MHz Yagi Directional Antenna Antenex, RPTNC Pigtail 

 

MHS031441 

10dBd, 900 MHz Yagi Directional Antenna Bluewave, RPTNC Pigtail 

 

MHS031451 

11dBd, 900 MHz Yagi Directional Antenna Bluewave, RPTNC Pigtail 

 

MHS031401 

12dBd, 900MHz Yagi Directional Antenna Antenex, RPTNC Pigtail 

 

MHS031411 

12dBd, 900MHz Yagi Directional Antenna Bluewave, RPTNC Pigtail 

 

 

 

Omni Directional 

  

  

 MHS031251 3dBd, 

900MHz 

Omni 

Directional Antenna Antenex, RPTNC Pigtail 

 

MHS031461 

3dBd, 900 MHz Omni Directional Antenna Bluewave, RPTNC Pigtail 

 MHS031321 6dBd, 

900MHz 

Omni 

Directional Antenna Antenex, RPTNC Pigtail 

 

MHS031471 

6dBd, 900 MHz Omni Directional Antenna Bluewave, RPTNC Pigtail 

 

 

WARNING

 

Changes or modifications not expressly approved by Microhard Systems Inc. could void the user’s 
authority to operate the equipment. This device has been tested with MCX and Reverse Polarity 
SMA connectors with the antennas listed in Appendix A When integrated in OEM products, fixed 
antennas require installation preventing end-users from replacing them with non-approved 
antennas. Antennas not listed in the tables must be tested to comply with FCC Section 15.203 
(unique antenna connectors) and Section 15.247 (emissions).  Please Contact Microhard Systems 
Inc. if you need more information. 

Summary of Contents for MHX-910A

Page 1: ...ual i Operating Manual MHX 910A 900 MHz Spread Spectrum OEM Module Revision 0 10 November 1 2004 17 2135 32nd Ave N E Calgary Alberta T2E 6Z3 Phone 403 248 0028 Fax 403 248 2762 www microhardcorp com...

Page 2: ...TIONAL WARRANTY Indemnification The Purchaser shall indemnify Microhard Systems Inc and its respective directors officers employees successors and assigns including any subsidiaries related corporatio...

Page 3: ...more information or would like to order an antenna WARNING MAXIMUM ERP FCC Regulations allow up to 36 dBm effective radiated power ERP Therefore the sum of the transmitted power in dBm the cabling lo...

Page 4: ......

Page 5: ...FIGURES VII 1 INTRODUCTION 1 1 0 PRODUCT OVERVIEW 1 1 1 FEATURES 2 2 CONFIGURATION 4 2 0 OVERVIEW 4 2 1 OUTPUT POWER LEVEL 4 3 INSTALLATION 7 3 0 OVERVIEW 7 3 1 ESTIMATING THE GAIN MARGIN 7 3 2 INTER...

Page 6: ......

Page 7: ...MHX 910A Operating Manual History v History Revision Date Action FW Rev Note 0 10 2004 11 01 Created For FCC Approval...

Page 8: ......

Page 9: ...Operating Manual Tables and Figures vii Tables and Figures Tables Table 1 Path Loss 8 Table 2 Cable Loss 10 Figures Figure 1 Gain Calculation 7 Figure 2 System Deploying 8 Figure 3 Suggested Internal...

Page 10: ......

Page 11: ...rformance of this product makes it ideal for many applications Typical uses for this module include SCADA Remote Telemetry Surveillance Traffic Control Industrial Controls Remote Monitoring Fleet Mana...

Page 12: ...aximum allowable transmit power 1W Low power consumption in Sleep Mode Real Time Clock wakeup 32 bit CRC selectable forward error correction with retransmission Separate diagnostics port transparent r...

Page 13: ...MHX 910A Operating Manual Chapter 1 Introduction 3...

Page 14: ...ecessary RF pollution The allowable settings are 0 1 mW 1 10 mW 2 100 mW 3 1000 mW Ideally you should test the communications performance between units starting from a low power level and working upwa...

Page 15: ...any user or member of the public IMPORTANT FCC Regulations allow up to 36 dBi effective radiated power ERP Therefore the sum of the transmitted power in dBm the cabling loss and the antenna gain cann...

Page 16: ......

Page 17: ...ter receiver pair The number can be calculated based on knowledge of the equipment being deployed The following four factors make up a system gain calculation 1 Transmitter power user selectable 0 20...

Page 18: ...equate for reliable communication Path loss is a very complicated calculation which mainly depends on the terrain profile and the height of the antennas off the ground The following table provides pat...

Page 19: ...s MCX connector to a reverse TNC bulkhead connector on the chassis of the equipment as shown in Figure 3 This cable can be purchased from Microhard Systems Figure 3 Suggested Internal Cabling Cable lo...

Page 20: ...MHX 910A equipment is powered down during installation At all time a distance of 23 cm must be maintained between the antenna and any person when the device is in operation Surge Arrestors The most ef...

Page 21: ...the antenna connector surge arrestor The cable must be supported at the top with a hose clamp or wrap lock and at 5 ft intervals down the length of the tower Over tightening the fasteners will dent th...

Page 22: ...ground for vertical polarization In applications where there are multiple units that you must communicate with or units which are in motion you may select an Omni directional antenna with appropriate...

Page 23: ...to the maximum power setting of 30dBm Example 2 What is the maximum power the MHX 910A can be set to comply with FCC and IC given the following equipment given a Yagi Antenna Gain 12dBd and cable and...

Page 24: ...14 MHX 920 Operating Manual Chapter 3 Installation...

Page 25: ...00MHz Yagi Directional Antenna Bluewave RPTNC Pigtail MHS031501 9dBd 900MHz Yagi Directional Antenna Antenex RPTNC Pigtail MHS031441 10dBd 900 MHz Yagi Directional Antenna Bluewave RPTNC Pigtail MHS03...

Page 26: ...16 MHX 910A Operating Manual Appendix A Approved Antennas...

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