Motorola GM360 Specifications download pdf (Page 77)

Chapter 17

Portable Satellite Phones

There are many types of satellite phones used in radio rooms, and by personnel in the

field. Two types, which are very small compared to other satellite systems, are the

Thuraya and Iridium handheld units. Both have advantages and disadvantages, which

are explained below. Other systems in use include Inmarsat A, B, C, M, and the Mini

There is a plethora of systems available and the UN uses most of them at some time

or place around the world. Radio operators should source the relevant manuals and

become familiar with the system(s) being used.

Thuraya

The Thuraya phone is a combination of a satellite phone with a GSM (Global System

for Mobile communication at 900Mhz) and GPS (Global Positioning

System) technologies. Operations of a typical GSM mobile phone will work

in a very similar manner when using the Thuraya satellite service. The

exception, when in satellite mode, a clear view of the satellite is required

(i.e. need to be outside, not inside a building).

Advantages:

• Small and portable.

• Combination of GSM & satellite use.

• Available with desk cradle and external antenna.

• GPS positioning available (satellite mode only).

• Can send and receive voice, data (e-mail), fax and SMS messages when the

appropriate software is installed (this is not supplied with the phone).

Disadvantages:

• Limited coverage through a single

Geostationery satellite. Currently

restricted to use in the Middle

East, Central Asia, North/Central

Africa and parts of Europe.

Covera

e area

or Thura

a Sat Phone

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Motorola GM360 Specifications Page 77