User Manual

36 Part 004071A revision 00b August 6, 2003
Amosphere NPM Installation Procedures (MMDS)
Antenna Mounting Locations
The NPM basestation uses two antennas (main and diversity) per sector. Ensure
that your tower can support the number of antennas shown in Table 2.14.
The field engineering package (FEP) contains information about the size, weight,
and installation requirements of the antennas.
GPS Antenna Mounting Locations
The NPM basestation requires two 1-inch diameter hollow pipes for mounting
the two GPS antennas. The mounting location must be free of any objects that
might block satellite visibility within 10° of the horizon.
Cabling Requirements
Ensure that your site has the necessary cable racks and ladders to accommodate
an NPM basestation and that your site has external cable access ports for the GPS
and RF antenna cabling. The field engineering package (FEP) contains the cable
layout specific to your site.
Fire Protection System
SOMA Networks recommends a fire protection system for the site.
Lighting
The site must have sufficient lighting to conduct work in a safe manner.
Emergency lighting is recommended. Lighting must meet local and other
applicable regulations.
Sectors Supported by Basestation Required Antennas
12
24
36
48
510
612
Table 2.14 NPM Antenna Requirements
installation.book Page 36 Wednesday, August 6, 2003 6:06 PM