Chapter 2 Introduction; Explorer 7100Gx System; Overview - COBHAM EXPLORER 7100GX Installation And User Manual

Introduction
This chapter has the following sections:

• EXPLORER 7100GX system

• Description of the system components
2.1 EXPLORER 7100GX system
2.1.1

Overview

The EXPLORER 7100GX is a 1.0 m drive-away antenna system, designed for operation in the
Ka-band. The GX modem, also known as the iDirect Core Module, commands the system to
automatically acquire an operational satellite within five minutes based on the terminal's
GPS location. Its elevation over azimuth positioner features a simple, rugged cable drive
system that produces very low backlash, high stiffness, and high reliability. It is driven by a
low backlash gearbox with DC motors, and all drive components are high-strength steel
encased in lubricated-for-life housings. For further details see the technical specifications.
All of the EXPLORER series terminals are easy to install, setup, and commission by a non-
specialist technician. The system has the following major components:
1. 2-axis motorized antenna positioner with Inter-Facility Link and cabling interface ports
for Block Up-converter (BUC) power.
2. Reflector and RF assembly including filter/polarizer, BUC, and Low Noise Block Down-
converter (LNB).
3. Antenna Control Unit (ACU) and Gx Modem Unit (GMU), keypad, display and LAN ports.
98-147366-A
Figure 2-1: Major system components
Chapter 2
2
Reflector
RF assembly
Antenna
positioner
ACU with keypad
and display
LAN ports and
AC power
(at rear)
GMU
2-1