Installation Manual
Table Of Contents
- Safety summary
- About This Manual
- Introduction
- Installation
- Maintenance
- Illustrated parts list
- Equipment specifications
- References
- Glossary
- Index
System overview
2-2 Chapter 2: Introduction 98-152675-A
Cobham Public
2.2 System overview
The purpose of the LGA-5005 is to provide an L-band radio link between the Inmarsat
SwiftBroadband Class 4 SATCOM system AVIATOR 200S and an Inmarsat I4 satellite. For
SwiftBroadband services, the LGA-5005 is part of a single channel aeronautical SATCOM
system comprising the following subsystems (as defined in ARINC 781-6, Attachment 7,
Configuration 3 [4]), interconnected as shown in Figure 2-2:.
• LGA-5005 HLD/Enhanced Low Gain Antenna (HELGA)
• SDU-5045 Compact Satellite Data Unit (CSDU)
• SCM-5055 CSDU Configuration Module (SCM)
Type
Number
Equipment Name
Abbreviated
Name
Certified
Part Number
a
a. Final PNR suffix vvccc: vv = customer specific, ccc = minor variants
OEM PNR
[for Cobham internal use only]
LGA-5005 HLD/Enhanced
Low Gain Antenna
HELGA 405005-vvccc 677-A0213
SCM-5055 Compact SDU
Configuration
Module
SCM 405055-vvccc 677-A0217
SDU-5045 Compact Satellite
Data Unit
CSDU 405045-vvccc –
Table 2-2: Summary of system equipment