Itron Inc. DCU5310U Benutzerhandbuch
Chapter 1 Using the MC3 System
20
Mobile Collection Hardware Installation Guide
Proprietary and Confidential
Selecting a Location and Connecting the Antennas
To reduce potential radio interference to other users, the antenna type and its gain should
be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that
permitted for successful communication.
be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that
permitted for successful communication.
Caution This device has been designed to operate with the antennas listed below,
and having a maximum gain of 5dBi. Antennas not included in this list or having a
gain greater than 5 dBi are strictly prohibited for use with this device. The required
antenna impedance is 50 ohms.
and having a maximum gain of 5dBi. Antennas not included in this list or having a
gain greater than 5 dBi are strictly prohibited for use with this device. The required
antenna impedance is 50 ohms.
Use only Itron-approved and supplied antennas.
The omni-mount RF antenna has either a fixed-base that is permanently attached to the
vehicle or a magnetic base that can be attached to and removed from the vehicle as
necessary.
vehicle or a magnetic base that can be attached to and removed from the vehicle as
necessary.
When deciding where to mount the antenna:
• Choose a flat area on the vehicle's roof, where the metal of the roof is .02-.04
inches thick.
• Install the antenna at least 12 inches from any other antennas or metal
structures on the vehicle’s roof that could disrupt communication with
endpoints.
endpoints.
• To meet RF exposure safety requirements, the antenna must be installed 21.7
inches (55 cm.) from where any bystanders might be.
To connect the antenna
• Connect the omni-mount RF antenna cable to the MAIN ANTENNA connector on
the MC3. Be sure to properly tighten the connector. A loose connection can lead to
poor radio and read performance.
poor radio and read performance.