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Related Manuals for Microhard Systems MHX921
Summary of Contents for Microhard Systems MHX921
- Page 1 Operating Manual MHX921 900 MHz Spread Spectrum OEM Transceiver Revision 0.30 April 7, 2006 Model: MHX921 Microhard Systems Inc. #17, 2135 – 32 Ave N.E. Calgary, Alberta T3K 4Z4 Phone: (403) 248-0028 Fax: (403) 248-2762 www.microhardcorp.com...
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Page 2: Warranty
Warranty Microhard Systems Inc. warrants that each product will be free of defects in material and workmanship for a period of one (1) year for its products. The warranty commences on the date the product is shipped by Microhard Systems Inc. Microhard Systems Inc.’s sole liability and responsibility under this warranty is to repair or replace any product which is returned to it by the Buyer... -
Page 3: Mhx921 Regulatory Requirements
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. -
Page 4: Table Of Contents
Contents Warranty ..................................ii Warranty Diclaims................................ ii Indemnification................................ii Proprietary Rights................................. ii MHX921 Regulatory Requirements ..........................iii CONTENTS ................................IV GENERAL ................................1 ................................ 1 RODUCT VERVIEW ..............................2 UTPUT OWER EVEL INSTALLATION..............................4 ..................................4 VERVIEW ............................4 STIMATING THE ARGIN .............................. -
Page 5: General
The small-size and superior RF performance of this module make it ideal for many applications. While a pair of MHX921 modules can link two terminal devices (“point-to- point” operation); multiple modules can be used together to create a network of various topologies, including “point-to-multipoint”... -
Page 6: Output Power Level
While the typical application for the MHX921 is to provide a short- to mid- range wireless communications link between DTEs, it can be adapted to almost any situation where an asynchronous serial interface is used and data intercommunication is required. - Page 7 MHX921 Operating Manual: Chapter2 General...
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Page 8: Installation
Qualified and experienced personnel must carry out the installation, removal or maintenance of all antenna components. The MHX921 complies with FCC part 15 at the modular level for operation in the license-free 902-928 MHz ISM band. This chapter provides guidelines for installing and deploying equipment which incorporates the MHX921 module. - Page 9 Figure 1 Gain Calculation The power level has been set to 30dBm (1W) on the transmitter, and the receiver sensitivity for the MHX921 is -108dBm. System gain would be calculated to be: 30 - 2 + 6 + 3 - 2 + 108 = 143 dB.
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Page 10: Antennas And Cabling
-95dBm. 3.2 Antennas and Cabling This section describes the recommended procedure for installing cabling and antennas for use with the MHX921 module. 3.2.1 Internal Cabling The most common method for installing the module is to run a cable from the module’s MCX connector to a reverse TNC bulkhead connector on the... -
Page 11: Installing External Cables, Antennas And Lightning Arrestors
Typically, both ports on surge arrestors are N-female. External Filter WARNING: Although the MHX921 is capable of filtering out RF noise in most Direct human contact with the environments, there are circumstances that require external filtering. antenna is potentially unhealthy... - Page 12 See appendix A for a list of approved antennas that can be used with The MHX921 can only be used the MHX921 radio modem. If you require another type of antenna with any antennas listed in please contact Microhard Systems Inc. The MHX921 CANNOT be Appendix A.
- Page 13 36dBm with respect to the isotropic radiator. Example 1) What is the maximum power the MHX921 can be set to comply with FCC and IC given the following equipment given a Rubber Ducky Ant Gain 2dBi and no cable or connectors in the system? Max EIRP 36dBm Max TX power = EIRP –...
- Page 14 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.
- Page 15 MHX921 Operating Manual:Glossary...
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