User's Manual

302395 User’s Guide and Repeater Network Design Guide
8 February 2004
2.3 The 302395 Repeater Electronics Unit
The common element to all M/LC repeater infrastructure installations is the 302395 M/LC Electronics
unit. This contains the Cisco BR350 Bridge, the ½ bi-directional power amp, the SKII GPS, and the
MMS power and interface circuit board. When using this unit always following these guidelines:
• Keep the unit out of direct sunlight.
• Always provide lightning protection on the GPS and RADIO RF connectors.
• Always follow the “System Config” diagrams when setting up an installation.
• Use only approved antennas and power settings listed below.
2.3.1 Approved Antennas
Only five antennas are approved by the FCC. No other antennas may be used with this system. These
antennas are the following:
MMS
PN
ANTENNA
DESCRIPTION
HORIZONTAL
BEAMWIDTH
VERTICAL
BEAMWIDTH
POWER
SETTING
105831 Omni 2.5 dBi gain ½ wave stub 360 deg 60 deg 50 dBm
105342 Omni 6.0 dBi gain black foamed
(hardened)
360 deg 25 deg 50 dBm
105920 Sector 10 dBi gain 90 deg 35 deg 50 dBm
105708 Sector 13 dBi gain 120 deg 16 deg 50 dBm
105735 Dish 24 dBi high gain 9 deg 9 deg 5.0 dBm
The patterns and usage of these antennas is covered in the next section.