TABLE OF CONTENTS

FOREWORD …………………………………………………………………… i

SUPPLIED ACCESSORY ……………………………………………………… ii

IMPORTANT …………………………………………………………………… iii

PRECAUTION ……………………………………………………………… iii–iv

TABLE OF CONTENTS ……………………………………………………… v

1 PREPARATION …………………………………………………………… 1

■Belt clip attachment ……………………………………………………… 1

■Battery installation ……………………………………………………… 1

2 PANEL DESCRIPTION ………………………………………………… 2–4

■Switches, controls, keys and connectors ……………………………… 2

■Function display ………………………………………………………… 4

3 BATTERY CHARGING ………………………………………………… 5–7

■Battery caution …………………………………………………………… 5

■Charging connections …………………………………………………… 6

4 BASIC OPERATION …………………………………………………… 8–9

■Power ON ………………………………………………………………… 8

■Adjusting the volume …………………………………………………… 8

■Selecting the operating channel………………………………………… 9

5 RECEIVE AND TRANSMIT ………………………………………… 10–11

6 GROUP MODE (CTCSS) …………………………………………… 12–13

■Setting the group code ………………………………………………… 12

7 SCAN FUNCTION ………………………………………………………… 14

8 RING FUNCTIONS ……………………………………………………… 15

■Smart-Ring ……………………………………………………………… 15

■Call-Ring ………………………………………………………………… 15

9 OTHER FUNCTIONS ………………………………………………… 16–21

■Voice scrambler function ……………………………………………… 16

■Initial set mode ………………………………………………………… 16

■Lock function …………………………………………………………… 19

■Low battery indicator …………………………………………………… 19

■Auto power save………………………………………………………… 19

■ATS (Automatic Transponder System) ……………………………… 20

■Resetting the transceiver ……………………………………………… 20

■Optional HM-75A functions …………………………………………… 21

10 SPECIFICATIONS …………………………………………………… 22–23

11 OPTIONS ………………………………………………………………… 24

12 MEMO ……………………………………………………………………… 25

v

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Socket Mobile IC-4088A instruction manual Table of Contents