Introduction: Notations Used in This Manual 1-1
Chapter 1 Introduction
1.1 Notations Used in This Manual
Throughout the text in this publication, you will notice the use of note and caution notations. These
notations are used to emphasize that safety hazards exist, and due care must be taken and
observed.
1.2 Radio Description
The SL1M portable radios are available in the following frequency ranges and power levels.
These digital radios are among the most sophisticated two-way radios available. They have a robust
design for radio users who need high performance, quality, and reliability in their daily
communications. This architecture provides the capability of supporting a multitude of legacy and
advanced features resulting in a more cost-effective two-way radio communications solution.
NOTE
An operational procedure, practice, or condition that is essential to emphasize.
CAUTION indicates a potentially hazardous situation which, if
not avoided, might result in equipment damage.
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or injury.
Table 1-1. Radio Frequency Ranges and Power Levels
Frequency Band Bandwidth Power Level
VHF 136 – 174 MHz Analogue: 2 or 1 Watt, Digital: 3 or 1 Watt
UHF 403 – 470 MHz Analogue: 2 or 1 Watt, Digital: 3 or 1 Watt
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