D-MBR 3707-3708 PS NFPA CLASS A SIGNAL BOOSTER
PRODUCT DESCRIPTION AND USER’S MANUAL
www.cobham.com/wireless
Date: 17-Jan-16
Cobham Wireless – Coverage
Page | 8 Rev. 1.1 Doc. No.00060CDUM
2.2.2.2 Installation Criteria
Installation requirements:
• An indoor antenna should be installed at a convenient location. It should be free of metallic
obstruction.
• Install the Service Antenna at the designated height and tune it roughly toward the Service
coverage area.
• Installation of this antenna must provide a minimum separation distance of 28 cm from any
personnel within the area.
Note: If the power is divided into more than 5 antennas that have a large coverage area than the
separation distance can be less than 28 cm.
• Cable and jumper loss is at least 2dB.
2.2.3 Outdoor Installations
For applications in which the Mobile antenna is installed outdoors, the antenna type is chosen
according to the available infrastructure (single-pole or horizontal installation). In addition, isolation
between the donor and service antennas must be taken into account when selecting the location of
the antennas.
2.2.3.1 Recommended Antennas
The antenna type depends on the installation:
• For vertical
Single Pole
installations a high side lobe suppression antenna is required.
• For horizontal installations either on two separate poles or on two sides of one building a high
front to back ratio antenna is required.
Specifications:
• Maximum antenna gain for outdoor operation 9dBi.
• Cable and jumper loss is at least 2dB.
• [Gain Antenna – Cable loss] should not exceed 7dB
Installation requirements:
• Installation of this antenna must provide a minimum separation distance of 62 cm from any
personnel within the area.
NOTE: The Single Pole and Horizontal Installations are described in section 2.2.3.2 and 2.2.3.3.
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