Features And Benefits; Introduction; Audio Quality Enhancement; Xpand™ Voice Compression - Motorola GM300 Series Selling Manual

1.0

Introduction

This chapter describes those radio features and functionality which offer a significant benefit to your
customers. The intention is to provide you with useful information which is relevant to your
customers that will help you sell the GM300 Series Professional Mobile radios.
2.0

Audio Quality Enhancement

2.1 Xpand™ Voice Compression
Xpand™voice compression combines two audio quality enhancement features - Companding and
Low Level Expansion (LLE).
2.1.1 Companding
Companding is a collective term to define compressing the audio signal on transmission and
expanding the audio signal on reception. The overall effect is to reduce noise in the received signal,
giving you crisper, clearer audio clarity. Companding should only be used when other radios in your
system have the same companding feature available.
Companding and LLE are mutually exclusive, switching on one of the features automatically
switches off the other.
It is important to ensure that all radios in a team have the feature switched on.
Benefits
Crystal clear communication which makes listening easier.


Improves efficiency as messages are heard and understood first time.


2.1.2 Low Level Expansion (LLE)
This allows improvements in audio quality by reducing noise usually heard during pauses in
conversation.
This feature is automatically included in every radio and should only be switched off in specialised
applications.
Benefits
Pauses in conversations are now silent which makes it easier to listen.

FEATURES AND BENEFITS

Chapter 2