AT&T 2820 Instruction Manual Page 102
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- Table of contents
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DTMF tone sequences are used for autopatching, controlling
other equipment, etc. The transceiver has 16 DTMF memory
channels (d0–d#) for storage of often-used DTMF tone se-
quences of up to 24 digits.
qPush and hold [TONE•DTMF] for 1 sec.
wRotate [DIAL] to select the
“DTMF MEMORY,” then push
[MAIN•BAND].
eRotate [DIAL] to select the desired memory channel, then
push [MAIN•BAND].
•Atotal of 16 channels, “d0” to “d#” are available.
rRotate the [DIAL] to select the desired code.
tPush [>](M/CALL•MW)
(Left band’s) to select the next digit.
• Pushing [<](V/MHz•SCAN) (Left band’s) moves the cursor back-
ward.
yRepeat the steps r and t to set the desired DTMF tone
sequence, then push [MAIN•BAND].
uPush [BACK](V/MHz•SCAN)
(Right band’s) twice to exit
from DTMF memory screen.
[EXAMPLE]: Programming “5428AB453” into DTMF memory channel “d4.”
Push
RotatePush and hold for 1 sec.
TONE
DTMF
Rotate
Push
Push (Right band’s) twice to back.Rotate then push (Left band’s)
M/CALL
MW
V/MHz
SCAN
> BACK
Repeat the previous step until the
desired tone sequence is entered.
M
A
I
N
B
A
N
D
M
A
I
N
B
A
N
D
M
A
I
N
B
A
N
D
M
A
I
N
B
A
N
D
M
A
I
N
B
A
N
D
Push
M
A
I
N
B
A
N
D
81
DTMF MEMORY ENCODER
10
■ Programming a DTMF tone sequence
- INSTRUCTION MANUAL 1
- FOREWORD 2
- IMPORTANT 2
- EXPLICIT DEFINITIONS 2
- PRECAUTIONS 3
- SUPPLIED ACCESSORIES 4
- TABLE OF CONTENTS 5
- D Location 9
- D Using the mounting bracket 9
- QUICK REFERENCE GUIDE 10
- D Microphone connection 10
- D Controller’s attachment 12
- D Remote installation 12
- D Battery connection 14
- D DC power supply connection 15
- D Antenna installation 16
- ■ Your first contact 17
- ■ Repeater operation 19
- ■ Programming memory channels 20
- PANEL DESCRIPTION 22
- ■ Function display 24
- ■ Function display— continued 26
- ■ Function guide indications 28
- ■ Main unit 30
- ■ Microphone (HM-133*) 32
- ■ Microphone keypad 33
- (HM-154) 35
- SETTING A FREQUENCY 36
- D VFO and memory modes 37
- ■ Using the tuning dial 38
- ■ Using the [Y]/[Z] keys 38
- ■ Using the keypad 38
- ■ Tuning step selection 39
- ■ Lock functions 40
- BASIC OPERATION 41
- ■ Selecting output power 42
- ■ Operating mode selection 42
- ■ Squelch attenuator 43
- ■ Sub-band mute/busy beep 45
- ■ Monitor function 45
- ■ Single band operation 46
- ■ One-touch PTT function 47
- ■ Audio mute function 48
- ■ Band scope 48
- REPEATER OPERATION 50
- 34) is set 51
- D Subaudible tones 53
- D DTMF tones 54
- D 1750 Hz tone 54
- ■ Offset frequency 55
- ■ Digital mode operation 56
- ■ Call sign programming 56
- When sending a CQ 60
- ■ DV automatic detect 61
- ■ About D-STAR system 62
- ■ Digital repeater operation 63
- What is the area? 65
- What is the zone? 65
- ■ Received call sign 68
- One-touch reply 69
- ■ Copying the call sign 70
- •When “ALL” is selected 71
- ■ Break-in communication 72
- ■ Message operation 73
- Message Transmission 74
- RX message indication 75
- ■ Automatic reply function 76
- ■ EMR communication 77
- Low-speed data communication 78
- ■ DV voice memory 79
- ◆ Track size setting 80
- MEMORY MODE OPERATION 81
- , duplex direction, sub 83
- ■ Memory bank selection 84
- ■ Memory bank setting 85
- Available characters 86
- ■ Copying memory contents 88
- D Memory/call➪call/memory 89
- ■ Memory clearing 90
- CALL CHANNEL OPERATION 92
- ■ Programming a call channel 93
- SCAN OPERATION 94
- ■ Scan start/stop 95
- ■ Scan edges programming 96
- ■ Scan resume condition 98
- ■ Skip channel setting 99
- PRIORITY WATCH 100
- ■ Priority watch operation 101
- DTMF MEMORY ENCODER 102
- D Manual transmission 104
- ■ DTMF speed 105
- TONE SQUELCH AND POCKET BEEP 106
- D Reverse tone/DTCS squelch 107
- D Setting DTCS code 108
- ■ DTCS polarity setting 109
- ■ Tone scan 110
- Digital code setting 111
- PAGER/CODE SQUELCH 112
- Code programming 113
- ■ Pager operation 114
- ■ Code squelch 115
- MENU SCREEN OPERATION 116
- ■ Menu list 117
- ■ Items list 117
- ■ SET MODE items 120
- ■ DV SET MODE items 122
- ■ SCAN items 124
- ■ DUP/ TONE items 125
- ■ DISPLAY items 126
- ■ SOUND items 128
- ■ DV GPS items 129
- ■ PACKET items 130
- ■ GPS SET MODE items 130
- Alarm area 1 131
- Alarm area 2 131
- ■ GPS-A SET MODE items 132
- GPS-A symbol 133
- OTHER FUNCTIONS 134
- ■ All reset 135
- ■ Partial reset 135
- ■ Data cloning 136
- ■ Auto power OFF 137
- ■ Time-out timer 137
- ■ Packet operation 138
- D 1200 bps packet operation 139
- GPS/GPS-A OPERATION 142
- Sentence formatters selection 143
- GPS message programming 145
- Receiving a GPS transmission 146
- RX GPS message indication 147
- Programming GPS memory 147
- GPS alarm setting 148
- GPS memory clearing 148
- ■ GPS-A operation 149
- MAINTENANCE 150
- ■ Fuse replacement 151
- SPECIFICATIONS AND OPTIONS 153
- ■ Options 154
- ABOUT CE 156
- #02 Europe1 164
- #10 Europe2 164
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