User Manual
10  MHX-920 Operating Manual: Glossary 
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. 










