Radioddity DB25-D Service manual

© Radioddity page 1 of 175
V1.0, February 2022
DB25-D
extended manual

Radioddity Extended manual for Radioddity DB25-D v1.0
© Radioddity page 2 of 175
Overview of Radioddity.......................................................................................................... 11
1Disclaimer ....................................................................................................................... 12
2Product safety and RF exposure for portable radios................................................... 13
2.1 Notes on the use of the radio ................................................................................... 13
2.2 Maintenance and Cleaning........................................................................................ 14
Maintenance ........................................................................................................................ 14
Cleaning................................................................................................................................ 14
3What is in the box? ......................................................................................................... 15
4Preparation for operating the radio.............................................................................. 16
4.1 Radio installation ........................................................................................................ 16
4.2 Power supply options................................................................................................. 17
Mobile Operation ................................................................................................................ 17
Base Station Operation ...................................................................................................... 18
Replace fuse......................................................................................................................... 19
4.3 Antenna connection ................................................................................................... 20
4.4 Accessories connection.............................................................................................. 21
External speaker/headset and microphone.................................................................... 21
Speaker-Microphone .......................................................................................................... 21
4.5 Keypad operations...................................................................................................... 22
4.6 Radio controls ............................................................................................................. 22
Parts description & function applications........................................................................ 23
Status Icons.......................................................................................................................... 27
Transmit / Receiving Icons ................................................................................................. 29
LED Indicators...................................................................................................................... 29
Programmable Function keys............................................................................................ 30
Keys and ENC (channel Selector) operation .................................................................... 30
4.7 Main functions description........................................................................................ 31
Common functions ............................................................................................................. 31
Digital Functions ............................................................................................................ 32
Analog Functions ........................................................................................................... 32
4.8 Operations for Speaker-Microphone keypad ......................................................... 33
Keystrokes............................................................................................................................ 33
5Basic Operation .............................................................................................................. 34
5.1 Turning the radio On/Off ........................................................................................... 34
5.2 Adjust Volume ............................................................................................................. 34
5.3 Adjust Squelch............................................................................................................. 34
5.4 Switch Bands ............................................................................................................... 34
5.5 Busy Channel Lockout ........................................................................................... 35

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5.6 Wide/ Narrow Band ............................................................................................... 35
5.7 CTCSS / DCS ............................................................................................................ 35
5.8 Channel Selection ....................................................................................................... 35
5.9 Switch between VFO and Channel Mode ................................................................ 36
5.10 VFO Frequency Set...................................................................................................... 36
5.11 Zone / Channel Selection ........................................................................................... 36
5.12 Monitor ................................................................................................................... 36
5.13 Permanent Monitor ............................................................................................... 36
5.14 Repeater / Talk Around ........................................................................................ 37
5.15 Emergency Alarm .................................................................................................. 37
5.16 Scan On/Off ................................................................................................................. 37
5.17 Roaming On / Off ........................................................................................................ 38
5.18 1750Hz Pilot tone ................................................................................................... 38
5.19 Promiscuous Mode ............................................................................................... 38
6Using the radio menu .................................................................................................... 39
6.1 Accessing the menus and operations ...................................................................... 40
7Placing a PTT Call............................................................................................................ 41
7.1 High / Low power........................................................................................................ 41
7.2 Select the transmitting band..................................................................................... 41
7.3 Receive and Answer to a digital radio call .......................................................... 41
7.4 Receive and Answer to an analog radio call ...................................................... 43
8Special DMR functions .............................................................................................. 44
Remote monitor ............................................................................................................. 44
Remote Kill ...................................................................................................................... 44
Radio Detection .............................................................................................................. 44
Radio Revive ................................................................................................................... 45
Call Alert .......................................................................................................................... 45
GPS .................................................................................................................................. 45
Record ............................................................................................................................. 45
DTMF ............................................................................................................................... 45
Encryption ....................................................................................................................... 45
9The radio Menu functions in detail ............................................................................... 46
9.1 Contacts .................................................................................................................. 46
Contact list ...................................................................................................................... 46
New Contact ................................................................................................................... 47
Manual Dial ..................................................................................................................... 48
Ham Contacts ................................................................................................................. 48

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Ham Group Contacts ..................................................................................................... 50
9.2 Message ............................................................................................................ 51
Network support for short messages .............................................................................. 51
CreateMsg ....................................................................................................................... 52
Common Messages CommMsg ................................................................................... 53
lnbox ................................................................................................................................ 54
Outbox ............................................................................................................................ 55
Draftbox .......................................................................................................................... 56
9.3 Call Log .............................................................................................................. 57
Dialed Calls (DialedNumbs) .......................................................................................... 57
Received Calls ................................................................................................................. 58
Missed Calls .................................................................................................................... 59
9.4 Scan ......................................................................................................................... 60
Scan....................................................................................................................................... 60
Scan List................................................................................................................................ 60
Scan Mode............................................................................................................................ 61
Roam Setting........................................................................................................................ 61
Precautions for roaming .................................................................................................... 64
9.5 Zones & Channel ................................................................................................... 64
9.6 Local Set .................................................................................................................. 65
Language .............................................................................................................................. 65
Keypadlock ........................................................................................................................... 65
Backlight ............................................................................................................................... 66
LED indicator (LEDs)............................................................................................................ 66
Display Mode ....................................................................................................................... 67
VOX........................................................................................................................................ 68
Factory Reset ....................................................................................................................... 68
9.7 Parameters ............................................................................................................. 69
TOT ........................................................................................................................................ 69
Power.................................................................................................................................... 69
Slot/Repeat ..................................................................................................................... 70
Encryption (ENC Level) .................................................................................................. 71
Squelch Level (SQ level) ................................................................................................. 71
Wide / Narrow Band (Band) .......................................................................................... 71
Busy Channel Lockout (BCLO) ...................................................................................... 72
Signaling .......................................................................................................................... 72
CTCSS Phase Reverse (Ctcss Tail) ................................................................................. 73
9.8 Tone Set .................................................................................................................. 74
Profiles.................................................................................................................................. 74
Key Tone (KeyTone)............................................................................................................. 74
Message Tone (MsgTone) ............................................................................................. 74
Private Call Ring Tone (PCallTone) ............................................................................... 75
Group Call Ring Tone (G Call Tone) ............................................................................. 75
Alert Ring Tone (AlertTone) .......................................................................................... 75
Power On Tone (FM Call Tone) .................................................................................... 76

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9.9 Appendix ................................................................................................................ 76
GPS ........................................................................................................................................ 76
FM Radio............................................................................................................................... 77
Time ...................................................................................................................................... 78
DTMF ............................................................................................................................... 79
Headset+Speaker ................................................................................................................ 79
APRS ...................................................................................................................................... 80
9.10 Record ................................................................................................................ 81
9.11 Device Info .............................................................................................................. 82
9.12 Channel Edit ........................................................................................................... 83
10 Programming with the CPS........................................................................................ 85
10.1 Install device driver..................................................................................................... 85
10.2 Install CPS .................................................................................................................... 86
10.3 Start CPS....................................................................................................................... 89
Special functions ................................................................................................................. 90
Safe factory settings to a file ............................................................................................. 90
Connect to the radio ........................................................................................................... 90
Read codeplug from DB25-D............................................................................................. 91
Safe codeplug to file ........................................................................................................... 92
Write codeplug to DB25-D ................................................................................................. 92
Open existing codeplug...................................................................................................... 93
FactoryReset ........................................................................................................................ 93
11 Make changes to your settings.................................................................................. 95
11.1 Device Info ................................................................................................................... 95
Factory Number .................................................................................................................. 95
Serial Number...................................................................................................................... 95
Model Number .................................................................................................................... 96
Firmware Version ................................................................................................................ 96
Version Data......................................................................................................................... 96
Frequency Range................................................................................................................. 96
The Latest Update ............................................................................................................... 96
Firmware ID.......................................................................................................................... 96
11.2 Basic Parameters ........................................................................................................ 96
Radio Name.......................................................................................................................... 97
Rolling Code ......................................................................................................................... 97
Language .............................................................................................................................. 97
TOT ........................................................................................................................................ 97
Busy Channel Lockout ........................................................................................................ 98
VOX........................................................................................................................................ 98
VOX Sensitivity ..................................................................................................................... 98
Power-saving........................................................................................................................ 98
Power Saving Ratio ............................................................................................................. 98
Save power startup time .................................................................................................... 99

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Scanmode............................................................................................................................. 99
End-tone types..................................................................................................................... 99
Squelch (A) Level .......................................................................................................... 100
Squelch (B) Level .......................................................................................................... 100
Radio ID ......................................................................................................................... 100
Backlight ON/OFF .............................................................................................................. 101
Keylock................................................................................................................................ 101
Roaming ............................................................................................................................. 101
Roaming Mode .................................................................................................................. 102
RSSI threshold.................................................................................................................... 102
Connect Check Timer........................................................................................................ 102
Repeater Check Timer ...................................................................................................... 103
Connect Time..................................................................................................................... 103
Record Set ..................................................................................................................... 103
11.3 Common Menus ....................................................................................................... 104
11.4 Prompt Tone.............................................................................................................. 104
Profiles................................................................................................................................ 105
SMS prompt .................................................................................................................. 105
Private Call Tone .......................................................................................................... 105
Group Call Tone ........................................................................................................... 105
Roaming restart prompt .................................................................................................. 105
Repeater lock prompt....................................................................................................... 105
Keytone............................................................................................................................... 106
Keytone volume................................................................................................................. 106
Low Battery Alert tone...................................................................................................... 106
Low Battery Alert volume................................................................................................. 106
Boot ringtone..................................................................................................................... 106
Call hang up .................................................................................................................. 107
11.5 Indicator ..................................................................................................................... 107
All Indicators ...................................................................................................................... 107
TX Indicator ........................................................................................................................ 108
RX Indicator........................................................................................................................ 108
Scanning Indicator ............................................................................................................ 108
Low battery Indicator........................................................................................................ 108
11.6 Preset Buttons........................................................................................................... 109
Long Press Duration ......................................................................................................... 109
Available Function for the Preset Buttons ..................................................................... 110
11.7 Mic Gain ..................................................................................................................... 111
MIC Gain 1 ON/OFF........................................................................................................... 112
MIC Gain 1 .......................................................................................................................... 112
MIC Gain 2 ON/OFF........................................................................................................... 112
MIC Gain 2 .......................................................................................................................... 112
11.8 Quick Msg ............................................................................................................. 113
11.9 DMR Service ......................................................................................................... 113
Remote monitor duration .......................................................................................... 113

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Remote Monitor Decode ............................................................................................ 114
Remote Kill Decode ..................................................................................................... 114
Radio Detection ............................................................................................................ 114
Radio Revive ................................................................................................................. 115
Call Alert ........................................................................................................................ 115
Group Call Hang Time ................................................................................................. 115
Private Call Hang Time ................................................................................................ 115
Import Delay ................................................................................................................. 116
DTMF Duration (On-time) ........................................................................................... 116
DTMF Interval (Off-time) ............................................................................................. 116
DTMF Volume ............................................................................................................... 116
DTMF code .................................................................................................................... 117
GPS ...................................................................................................................................... 117
GPS interval........................................................................................................................ 117
GPS channel ....................................................................................................................... 117
Mandown ........................................................................................................................... 117
Mandown Interval ............................................................................................................. 118
Mandown Angle................................................................................................................. 118
Mandown Alarm Duration ............................................................................................... 118
Inactive Time...................................................................................................................... 118
Pre-alarm Time .................................................................................................................. 118
Response transmission interrupt ................................................................................... 118
Scrambling frequency....................................................................................................... 118
Keylock Password On/Off ................................................................................................ 118
Keypad Password .............................................................................................................. 119
11.10 APRS........................................................................................................................ 119
Analog APRS .................................................................................................................. 119
Digital APRS .................................................................................................................. 120
Manual TX Interval[s] ................................................................................................... 120
APRS Auto TX Intervals[s] ................................................................................................. 120
Beacon ................................................................................................................................ 121
Latitude (degrees) ............................................................................................................. 121
Longitude (degrees) .......................................................................................................... 121
TX Freq [MHz] ............................................................................................................... 122
TX QT/DQT .................................................................................................................... 122
Transmit Delay ............................................................................................................. 123
Prewave Time ............................................................................................................... 123
Transmit Power ............................................................................................................ 123
APRS Tone ..................................................................................................................... 123
Destn SSID ..................................................................................................................... 124
Destn Call Sign .............................................................................................................. 124
Your SSID............................................................................................................................ 124
Your Call Sign ................................................................................................................ 125
APRS Symbol Table ........................................................................................................... 125
APRS Map Icon................................................................................................................... 125
APRS Signal Path .......................................................................................................... 127
Your Sending Text ........................................................................................................ 127

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No........................................................................................................................................ 127
Report Channel.................................................................................................................. 127
APRS TG ......................................................................................................................... 128
Report Slot .................................................................................................................... 128
Call Type ........................................................................................................................ 128
PTT ................................................................................................................................. 128
11.11 Encryption ........................................................................................................ 129
11.12 Contacts ............................................................................................................ 129
Contact list .................................................................................................................... 129
Ham contacts ............................................................................................................... 131
Ham groups .................................................................................................................. 133
11.13 Digital Alarm List ............................................................................................. 135
11.14 Scan List ................................................................................................................. 135
Scan List.............................................................................................................................. 136
Talkback.............................................................................................................................. 137
Scan TX Mode .................................................................................................................... 137
Appointed Channel ........................................................................................................... 137
Optional Channel .............................................................................................................. 138
Selected Channels ............................................................................................................. 138
11.15 RX Group .......................................................................................................... 139
11.16 Zone [Channel]...................................................................................................... 139
Zone name ......................................................................................................................... 139
12 Setup of channels..................................................................................................... 140
12.1 Z-1 ............................................................................................................................... 140
12.2 CH mode .................................................................................................................... 140
12.3 CH Name .................................................................................................................... 140
12.4 RX Freq ....................................................................................................................... 140
12.5 TX Freq........................................................................................................................ 141
12.6 Power.......................................................................................................................... 141
12.7 Only RX ....................................................................................................................... 141
12.8 Alarm .......................................................................................................................... 141
12.9 Prompt ....................................................................................................................... 142
12.10 PCT (Private Call Type) .................................................................................... 142
12.11 RX TS ................................................................................................................. 142
12.12 TX TS .................................................................................................................. 143
DMR use with simplex hotspot .................................................................................. 143
12.13 RX CC (Color Code) .......................................................................................... 144
12.14 TX CC ................................................................................................................. 144

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12.15 Msg Type .......................................................................................................... 144
12.16 TX Policy ................................................................................................................. 145
12.17 RX Group .......................................................................................................... 145
12.18 Encryption List ................................................................................................. 145
12.19 Scan List ................................................................................................................. 146
12.20 Contacts ............................................................................................................ 146
12.21 EAS (Emergency Alarm System) .......................................................................... 146
12.22 Bandwidth.............................................................................................................. 146
12.23 RX SQ ................................................................................................................. 147
12.24 RX QT/DQT (RX CTCSS/DCS) ........................................................................... 147
12.25 TX SQ ................................................................................................................. 148
12.26 TX QD/DQT (TX CTCSS/DCS) ........................................................................... 148
12.27 APRS........................................................................................................................ 148
13 Firmware update ...................................................................................................... 149
Install program for firmware update.................................................................................. 149
13.1 Perform Firmware update ....................................................................................... 149
14 Firmware Release notes........................................................................................... 153
15 CPS Release notes .................................................................................................... 154
16 Quickstart for common use cases........................................................................... 155
16.1 Simplex analog FM operation with other station ................................................. 155
16.2 Duplex analog FM operation with a local analog FM-repeater .......................... 156
16.3 Analog FM operation including analog APRS ........................................................ 157
16.4 Simplex digital DMR operation with other station ............................................... 158
16.5 Simplex digital DMR operation with Single-HAT hotspot .................................... 159
16.6 Duplex digital DMR operation with Dual-HAT hotspot........................................ 160
16.7 Digital DMR operation with digital repeater ......................................................... 161
17 Common problems and how to solve them........................................................... 164
18 CTCSS and DCS sub audio signaling........................................................................ 166
18.1 Supported CTCSS frequencies ................................................................................ 166
18.2 Supported DCS (Digital Coded Squelch) ................................................................ 166
18.3 Supported DCS-I (Digital Coded Squelch Inverted) values .................................. 167

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19 Connectivity .............................................................................................................. 168
19.1 Power connector....................................................................................................... 168
19.2 HF Antenna ................................................................................................................ 168
19.3 GPS antenna .............................................................................................................. 168
19.4 RJ45 Speaker-Microphone ....................................................................................... 169
19.5 K1 connector ............................................................................................................. 169
20 Technical specifications of the DB25-D................................................................... 170
20.1 General specifications .............................................................................................. 170
20.2 Receiver...................................................................................................................... 171
20.3 Transmitter ................................................................................................................ 171
21 Certification .............................................................................................................. 172
21.1 FCC part 90 approval................................................................................................ 172
21.2 CE certificate.............................................................................................................. 173
22 Where to find support material............................................................................... 174
23 Revision history of this document........................................................................... 175