SHOUT 3G User Guide Version B
Document Number: 451-93218-002B
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NTRODUCTION
The SHOUT Third Generation (3G) is a handheld satellite/cellular messaging and personal
tracking device. It is designed to operate in one of three modes; single-mode with the Iridium
satellite network, single-mode with any cellular network including AT&T and T-Mobile, or in
Iridium/cellular dual-mode. It can transmit location information determined by a highly
sensitive Global Positioning System (GPS) receiver, inbound and outbound status, text
messaging, and emergency/alert notifications.
The SHOUT 3G significantly improves service reliability over existing tracking products by
allowing two-way communications and confirmation of the nature of the distress to the first
responder community. This reduces false alerts; helps identify the nature of the emergency so
that the correct assets can be deployed, thereby reducing search and rescue costs; and
provides communications feedback capability to the user to assist in rescue efforts. When using
the Iridium link, the SHOUT 3G protocol is 100% backward compatible with the SHOUT, SHOUT
nano, SHOUT ts, and SHOUT gsm. In this document, the terms SHOUT 3G and 3G are used
interchangeably.
The SHOUT 3G is designed with ultra-low power consumption electronics drawing less than 70
μA during sleep. With an internal 2.15 Ah rechargeable Lithium-ion (Li-ion) battery, depending
on the environmental conditions, it can send a position report every ten minutes for more than
ten days (more than 1,600 reports). Read
impact of blocked antennas on the number of reports. The 3G is equipped with a high-
resolution color touchscreen and on-screen keyboards, allowing transmission of free-text,
canned messages, and a combination of free-text and canned messages. The menu options are
displayed as icons for quick access. The device can periodically wake up from sleep to send its
position report to a network operation center. A 911 button is used for immediate
emergency/alert notifications. Data are packaged in either standard unencrypted or 256-bit
Advanced Encryption Standard (AES) encrypted format.
The SHOUT 3G is capable of sending position reports and text messages in PECOS Message
Structure (PMS). The PMS complies with the Blue Force Tracking Data Format Specification as
defined in the document PECOS 200907-001 Version 1.7 [1]. The 3G is shipped without PMS
