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MHX 910A 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 Cabling .............................................................................................................................9

 

 
 

Содержание MHX-910A

Страница 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...

Страница 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...

Страница 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...

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Страница 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...

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

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Страница 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...

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Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

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Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

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

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