User's Manual

Appendix A - External Antenna Landis+Gyr
36 98-1546 Rev AA UtiliNet SCADA Single Board Radio
External Antenna Specifications
The External Antenna used to qualify the board is a 5 dB whip (shown in Figure A - 2), made by
MMG. The MMG antenna part number is 16-1000-0. See page 45 for product data sheet.
Figure A - 2. Whip Antenna with N-type Male Reverse-Polarity Connector
Ground Plane Specifications
Figure A - 3. Ground Plane Specification
If the enclosure for the board is metal and at least 6" across, and the antenna is connected directly to
the enclosure, no ground plane is required, as the enclosure is the ground plane. The radiation pattern
of the approved antenna is of a traditional dipole (RF pattern as a donut). The orientation of the
antenna should be in the vertical position (straight up or straight down), such that the RF pattern is
Omni-directional in the horizontal plane.
Please note this antenna requires a ground plane. The ground plane needs to be at least 6" in
diameter. See Figure A - 3.
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This antenna's maximum gain is 5 dB and its efficiency is 80%.