iii
FOREWORD …………………………………………………………… i
EXPLICIT DEFINITIONS ……………………………………………… i
FEATURES ……………………………………………………………… i
IMPORTANT …………………………………………………………… i
PRECAUTIONS ……………………………………………………… ii
TABLE OF CONTENTS ……………………………………………… iii
SUPPLIED ACCESSORIES ………………………………………… v
1
ACCESSORY ATTACHMENT ………………………………… 1
■
Antenna ………………………………………………………… 1
■
Belt clip ………………………………………………………… 1
■
Handstrap ……………………………………………………… 1
■
Battery pack …………………………………………………… 1
2
PANEL DESCRIPTION ……………………………………… 2–7
■
Front, top and side panels …………………………………… 2
■
Function display ……………………………………………… 6
3
BATTERY CHARGING ……………………………………… 8–13
■
Caution ………………………………………………………… 8
■
Regular charging ……………………………………………… 10
■
Rapid charging ……………………………………………… 11
■
Optional battery case ………………………………………… 12
■
Battery information …………………………………………… 12
■
External DC power operation ……………………………… 13
4
FREQUENCY AND CHANNEL SETTING ……………… 14–19
■
Main band selection ………………………………………… 14
■
Mode selection ……………………………………………… 15
■
Operating band selection …………………………………… 16
■
Setting a tuning step ………………………………………… 18
■
Setting a frequency …………………………………………… 18
5
BASIC OPERATION ……………………………………… 20–28
■
Receiving ……………………………………………………… 20
■
Setting audio volume ………………………………………… 20
■
Setting squelch level ………………………………………… 21
■
Operating mode selection …………………………………… 21
■
Monitor function ……………………………………………… 22
■
Attenuator function …………………………………………… 22
■
Band scope …………………………………………………… 23
■
Transmitting …………………………………………………… 24
■
Transmit power selection …………………………………… 24
■
Lock function ………………………………………………… 25
■
Dualwatch operation ………………………………………… 25
■
TV channel operation ………………………………………… 28
6
REPEATER AND DUPLEX OPERATIONS ……………… 29–33
■
Repeater operation …………………………………………… 29
■
Duplex operation ……………………………………………… 31
■
Auto repeater function ……………………………………… 32
■
1750 Hz tone ………………………………………………… 33
7
DV MODE OPERATION
(Optional UT-121 is required for IC-91A)
………………… 34–63
■
Digital mode operation ……………………………………… 34
■
Call sign programming ……………………………………… 34
■
Digital voice mode operation ………………………………… 38
■
About D-STAR system ……………………………………… 40
■
Digital repeater operation …………………………………… 41
■
Received call sign …………………………………………… 46
■
Copying the call sign ………………………………………… 48
■
Break-in communication …………………………………… 51
■
Message operation …………………………………………… 52
■
Automatic reply function ……………………………………… 54
TABLE OF CONTENTS
