Simrad RS81 User Manual

MAXIMIZING YOUR PERFORMANCE AT SEA

Simrad RS81 Specifications

General

Brand	Simrad
Model	RS81
Category	Radio
Language	English

Summary

1 GENERAL

1.1 Introduction

Overview of the RS81/RS82 VHF radio system, its components, and system options.

1.3 MMSI number

Explains the Maritime Mobile Service Identity (MMSI) number requirement for DSC functions.

2 INTRODUCTION

2.1 Introduction

Introduces the RS81 as a modular VHF radio system with a user-friendly handset and robust transceiver.

3 MAIN FUNCTIONS

3.2 Switching the radio on & off

Details the procedure for turning the radio on and off, including initial settings and status indicators.

3.4 Changing channels

Describes how to select channels using navigation keys and the priority channel function.

3.5 Volume

Explains how to adjust the audio volume level of the radio.

3.6 Squelch

Details how to adjust the squelch setting to filter out background noise.

3.8 Dual Watch mode

Explains how to scan between a working and a watch channel, typically channel 16.

3.9 Triple Watch or Tri-Watch mode

Allows scanning between working, User, and watch channels for monitoring multiple frequencies.

3.10 All scan mode

Cycles sequentially through all enabled channels, pausing on detected signals.

3.10.1 Dynamic All scan inhibit

Allows excluding busy channels from the All scan cycle to avoid repeated interruptions.

3.11 Memory scan mode

Scans a pre-programmed set of user-specified channels for monitoring.

3.11.1 Dynamic Memory scan delete

Enables removal of busy channels from the Memory scan process to improve efficiency.

3.13 Handset off cradle

Explains the system behavior when a handset is lifted from its cradle, including station lockout.

4 MENU MODE

4.1 Scanning

Covers scanning functions like channel inhibit, memory scan selection, and scan dwell time.

4.1.1 All scan inhibit

4.1.4 Memory scan select

4.1.5 Memory scan clear

4.1.7 Scan dwell time

4.2 Numbers

4.2.1 Ship's MMSI

Guide to entering the vessel's unique Maritime Mobile Service Identity (MMSI) number.

4.2.2 ATIS number

4.3 VHF Items

4.3.1 User channel

4.3.4 Speaker settings

4.3.4.1 Setting up speakers

4.3.4.2 Adjusting independent volumes

4.3.6 SimNet

5 MISCELLANEOUS FUNCTIONS

5.1 Selecting Weather Watch

Enables the radio to monitor a single Weather channel, alerting the user to transmissions.

5.1.1 Weather Watch alert

Describes the audible and visual alert for weather broadcasts and how to respond.

5.4 Intercom

5.4.1 Making an intercom call

5.4.2 Receiving an intercom call

5.5 Received DSC call displays

Shows how DSC call types are displayed on the handset, requiring AHS82 for full functionality.

5.5.1 Individual call

5.5.2 Public correspondence call

5.5.3 Group call

5.5.4 All Ships Safety call

5.5.5 All Ships Urgency call

5.5.6 Distress Alert call

Illustrates the display for an incoming Distress Alert DSC call.

5.5.7 Distress relay call

5.5.8 Distress acknowledgement

7 MAIN FUNCTIONS

7.2 Switching on/off & Second country mode

Details turning the RS82 on/off and selecting secondary country channel sets.

7.3 Changing channels

7.4 Volume adjustment

7.5 Squelch adjustment

7.6 Dual Watch mode

Allows scanning between a working and a watch channel (priority channel) for monitoring.

7.7 Triple Watch or Tri-Watch mode

Scans between working, User, and watch channels to monitor multiple frequencies simultaneously.

7.8 All scan mode

7.8.1 Dynamic All scan inhibit

7.9 Memory scan mode

7.9.1 Dynamic Memory scan delete

7.11 Handset off cradle