Audio and Design ProDAB-1 Plus Professional DAB Receiver User Manual

Audio and Design ProDAB-1 Plus Professional DAB Receiver

Product Specifications

• Model: ProDAB-1 Plus & ProDAB-2 Dual
• Version: 4.1 ProDAB Version 210/210
• Audio Output: Mono/Stereo selection available
• Headphone Impedance: Minimum 16 ohms
• Network Configuration: Static (Default IP: 192.168.0.7)

Product Usage Instructions

1. Initial Configuration

Getting Started:

ProDAB takes approximately 35 seconds to boot up, during which the power LED will flash. Press the following buttons to select different modes:

• DAB Mode: Display available DAB services, OK to select
• MP3 Mode: Display available MP3 files, OK to play the file
• Web Mode: Display available web links, OK to select a link
• FM Mode: Tune FM receiver in 100KHz steps, OK to tune to the displayed frequency

Unlock/Lock Front Panel:

To unlock the front panel, press and hold the Unlock button until the padlock symbol changes to ‘Unlocked’. This button can also exit Screen Saver or Main Menu to service display.

2. Audio & Design

Preset Button:

Press and hold the Preset button to save the currently selected service, station, MP3 track, or web link.

Headphone Output:

The headphone output is suitable for driving headphones with a minimum impedance of 16 ohms.

3. OLED DAB Display Screens

Display Screens:

Press the Info button to cycle through available display screens, including basic screen information and technical details for both tuners.

4. Network Set-Up

Setting Up IP Address:

To set up the IP address, mask, and default gateway, follow the on-screen instructions for selecting between STATIC & DHCP and editing the network settings.

Frequently Asked Questions

Q: How can I upload MP3 files to the device?

A: You can upload MP3 files using an SFTP client like Filezilla.
The device uses a nonstandard port for SSH & SFTP of 43222. Alternatively, you can use the Web Interface with login details Username: mp3, Password: 2033740.

ProDAB-1 Plus &
ProDAB-2 Dual Quick Start Guide
Version 4.1 ProDAB Version 210/210
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ProDAB Quick Start Guide

Initial Configuration

Getting Started:

ProDAB takes approximately 35 seconds to boot up, during this time the power LED will flash.

Press to select: DAB/DAB+ MP3 Web (Internet Radio) FM
When the OLED display is not in screen saver mode (Pressing any of the “Nav” keys will bring the unit out of screen saver) DAB Mode: display the available DAB services OK, will select the currently displayed service. MP3 Mode: display the MP3 files available OK, will play the currently displayed file. Web Mode: display available web links OK, will select the currently displayed link. FM Mode: tune FM receiver in 100KHz steps OK, will tune to the currently displayed frequency.

Unlocked

To Unlock front panel press and hold Unlock button until padlock symbol changes to Unlocked. This button will also jump out of Screen Saver or Main Menu to service display.

Locked

When displaying currently selected service, station or track press to change displayed information.

When ProDAB is shipped from the factory it will require a “DAB Scan” to find your local multiplexers. You will see a message “No Stream Selected ­ Press OK for Menu” Press the OK button then select DAB Scan use the button to select the type of scan you require and to start scanning. ProDab will then select the first service alphabetically that it finds. Press to view all other
found services & OK to select.

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ProDAB Quick Start Guide

Press and hold Preset button to save currently selected service, station, MP3 track or Web link.
Pressing whilst the preset directory is shown will cycle through the available presets, including those not available by direct access buttons ­ i.e. Presets 5 to 15 Presets also store mode, so can be used as a quick way to switch between DAB, FM, MP3 & Web.
Mono/Stereo selection will change the audio output in all modes, including IP stream output.

The headphone output is suitable to drive headphones with a minimum impedance of 16

Tuner selection button selects which output is currently being monitored by the headphone output and controlled by the front panel buttons

LED Meters – Over = 1dB below fsd. 0dBu = -18dB below fsd

Press and hold Tuner button to change unit mode between Diversity or Independent modes

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ProDAB Quick Start Guide
2 OLED DAB Display screens
Press Info button to cycle through available display screens
Basic screen with Service Name, program information, bit rate & mode
Information about selected MUX, audio algorithm, CID & SID, allocated Consumers Units.
Technical information for both tuners
Oscilloscope display to help with setting change over parameters See Change Over section for more details.

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ProDAB Quick Start Guide
3 Network set-up
Setting up IP address mask & default gateway. Press OK then select SYSTEM with then .
Select NETWORK MENU with or then

Choose between STATIC & DHCP using keys Then press Next Menu
If Static press to edit IP address/net mask. Then use to select & to change items then OK to save Note: net mask of 255.255.255.0 is shown as /24 i.e. 24 bits Press Next Menu
To edit use to select & to change items then OK to save Press Next Menu

To edit use to select & to change items then OK to save Press Next Menu

Note: The embedded web server can be
accessed via the set IP address port 80. Press Next Menu

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ProDAB Quick Start Guide
to save settings Next Menu
And to re-boot Operating System
Units are shipped with the network set to Static (192.168.0.7). To upload MP3 files use a SFTP client such as Filezilla, but, note that we use nonstandard port for SSH & SFTP of 43222 or use Web Interface (Full User Manual can be downloaded using the Help Button on the Web Interface). Login details for MP3 upload: Username – mp3 Password – 2033740 Filezilla download – https ://filezilla-project.org/
When displaying menus pressing or takes you to the next or previous menu item. OK is for selecting/accepting the desired action or parameter. Will take you into sub-menu or editing function.

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ProDAB Quick Start Guide
4 DAB Scan
Press OK then select DAB SCAN with then
Choose between Radio A & B using keys Then to go to next menu option
Choose between NEW SCAN which will clear current station list or RE-SCAN to append to current list using Then to go to next menu option
Choose NORMAL SCAN or THOROUGH SCAN using keys. Then to go to next menu option
Press OK to start Scan or to change scan starting MUX or to change scan ending MUX.

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ProDAB Quick Start Guide
5 System Menu

Then to go to next menu option

to access, option time before unit will automatically lockout front panel keys. Press and hold Unlock/Clr key to unlock.
to access sub-menu, this sets the MUX range for DAB Scan options: UK Range 10B to 13A EU Range 05A to 13F

to access sub-menu, this sets Tuner 1 & 2 as fully independent or diversity mode.

to access sub-menu options: 100KHZ 50KHZ
to access sub-menu options: OFF AUTO BLEND ­ Audio will automatically be mixed to Mono as RSSI decreases.

to access sub-menu options: DISABLED ENABLED

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ProDAB Quick Start Guide
to access sub-menu options: DISABLED ENABLED to access sub-menu options: NONE (Disabled) Unit will return to previous setting when powered up Select Preset which should be used on power up.
to access sub-menu
to access sub-menu
to edit
to edit
to access Engineering sub-menu

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ProDAB Quick Start Guide
to access Network sub-menu, see Network setup section on previous pages
to access sub-menu
to access sub-menu, manage copy/delete stored MP3 files

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ProDAB Quick Start Guide

Change Over

ProDAB can automatically play out a stored MP3 or switch to Internet radio when audio silence is detected or when RF signal level drops below a set threshold. From version 160/160 Change Over is implemented as a separate software module that is “hard coded” to use Preset 1 as the main program selected and Preset 2 as the “fail over” preset. Once “Armed” front panel controls are locked out. To disable Change Over mode, press and hold the Unlock/Clr front panel button. On ProDAB Dual only Tuner 1 can be set to Change Over mode, Tuner 2 still functions but cannot be changed. Also, from version 160/160 Change Over can be “Armed” and parameters changed via the web GUI.

Change Over modes Preset 1 DAB FM Web FM DAB Web

Preset 2 MP3 or Web MP3 or Web DAB or FM
DAB FM MP3

Press OK then select SYSTEM with then

Then select CH/MENU with then
Change over options are: Disabled, ON AF THRESHOLD (Audio level) or ON RSSI THRESHOLD (Received Signal Strength)

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ProDAB Quick Start Guide
Change over parameters can be optimized for audio threshold/rf RSSI along with delay, attack and decay times. Other options ­ SMOOTH MUSIC, POP MUSIC, SPEECH, CLASSIC MUSIC & RSSI LEVEL
Change Over, Disabled or detection on audio silence or low RSSI

MP3 Repeat options: STOP AT END ­ Play once then stop REPEAT SAME ­ Play single selected MP3 then repeat. NEXT IN LIST ­ Play all MP3 once, then stop

Oscilloscope display, see notes below for how to use this tool.

AF is the instant L+R (mixed) volume level for the selected source (i.e channel 1 as “C1”) This is shown as a number (0..255) and also as a time plot.

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ProDAB Quick Start Guide
PK is the peak value of the above, and modified by the attack and decay constants settable by the change over menu, “pk” is shown as a number (0..255) and as a time plot. GT is the raw gate logic level generated by the value PK threshold by constant value TH which is also settable from the changeover menu and displayed as a number (0..255) EG Is the extended (smoothed) gate version of GT by adding extra lead and lag times to avoid glitches. Lead and lag are settable from the changeover menu. The EG gate is the one that defines the changeover state. The general procedure is to set the GT threshold, attack and decay so that it more or less follows the audio, then adjust the lead and lag times for EG so that short glitches are minimised or removed. SI is the silence gate for the same source, (obtained by a different calculation) and shown here for comparison.
7 Engineering menu
key takes you to next menu level

key takes you to next menu level
key takes you to next menu level key takes you to next menu
key takes you to next menu level key takes you to next menu

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ProDAB Quick Start Guide
key takes you to next menu level key takes you to next menu Set AES 3 parameters such as sampling frequency.
Press to edit, then to change key takes you to next menu
Press to edit, then to change key takes you to next menu
Warning key will reboot system
Full or partial spectrum scan of FM band key takes you to menu options key takes you to next menu Full or partial spectrum scan of DAB MUX/Services key takes you to next menu option key takes you to next menu
Application software and FPGA versions key takes you to next menu

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ProDAB Quick Start Guide
DAB (and FM, select FM mode first) chipset firmware versions DAB – 6.04 FM – 4.0C key takes you to next menu Select source for Icecast compatible IP stream output. Either follows the selected “Tuner” (Front panel or web GUI), or fixed to the output of Tuner 1 key takes you to next menu option key takes you to next menu Allows additional calibration of DAB RSSI level Press to edit, then to change key takes you to next menu
Allows additional calibration of FM RSSI level
Default map settings for GPIO Outputs. & to change (compatible with ProDAB-1)
Default map settings for GPIO Inputs. & to change (compatible with ProDAB-1)

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ProDAB Quick Start Guide
7.1 GPIO Outputs
Default GPIO Output mapping and pin out GPO-0 (pin 23) Low = In changeover to MP3, Tuner 1 GPO-1 (pin 22) Low = RDS TA Traffic Flag active, Tuner 1 GPO-2 (pin 21) Low = Mono, Tuner 1 GPO-3 (pin 20) Low = Audio silence detect, Tuner 1 GPO-4 (pin 19) Low = RSSI below threshold, Tuner 1 GPO-5 (pin 10) Low = Audio silence detect, Tuner 2 GPO-6 (pin 9) Low= Network Fail

7.2 GPIO Output options available

OLED Display

Changeover

Changeover Active

AESb AF Silence

Silence detected on Tuner 2 AES Output

Rb AF Silence

Silence detected on Tuner 2 (internal)

AESa AF Silence

Silence detected on Tuner 1 AES Output

Stream Active

Streaming output has active connection/s

Ra AF Silence

Silence detected on Tuner 1 (internal)

CPU AF Silence

Silence detected on Streaming Output (internal)

SNR Low Ra

Signal to Noise low on Tuner 1

Diversity

Unit in Diversity mode

Mono Flag on DACb

Output 2 set to mono (DAB, FM, MP3 or Web)

Network Fail

No network connection

Silence on DACb

Silence detected on Output 2 (internal)

RSS Low Ra

Received Signal Strength Low Tuner 1

Silence on DACa

Silence detected on Output 1 (internal)

Mono Flag on DACa

Output 1 set to mono (DAB, FM, MP3 or Web)

FM TA Flag

FM TA Flag active Tuner 1

Default GPIO allocation version 1.30 firmware onwards
7.3 GPIO Output Pin out:
GPO-0 (pin 23) Low = In changeover to MP3, Tuner 1 GPO-1 (pin 22) Low = RDS TA Traffic Flag active, Tuner 1 GPO-2 (pin 21) Low = Mono, Tuner 1 GPO-3 (pin 20) Low = Audio silence detect, Tuner 1 GPO-4 (pin 19) Low = RSSI below threshold, Tuner 1 GPO-5 (pin 10) Low = Audio silence detect, Tuner 2 GPO-6 (pin 9) Low = Network Fail GPO-7 (pin 8) Low = Not Defined
Common Grounds: pins 2, 3, 4, 11, 12 & 13 +5V Current Limited: pins 24 & 25

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ProDAB Quick Start Guide
7.4 GPIO Inputs

& to change

7.5 GPIO Inputs options available

Option Activate (Closing contact to GND)

0

No action

1

Preset 1 Tuner 1

2

Preset 2 Tuner 1

3

Preset 3 Tuner 1

4

Preset 4 Tuner 1

5

Preset 1 Tuner 2

6

Preset 2 Tuner 2

7

Preset 3 Tuner 2

8

Preset 4 Tuner 2

9

Preset 2 Tuner 1

10

Preset 3 Tuner 1

11

Preset 4 Tuner 1

12

Preset 1 Tuner 1

13

Preset 2 Tuner 1

14

Preset 3 Tuner 1

15

Preset 4 Tuner 1

Release (Open) No action No Action No Action No Action No Action No Action No Action No Action No Action Return to Preset 1 Tuner 1 Return to Preset 1 Tuner 1 Return to Preset 1 Tuner 1 Return to Silence Return to Silence Return to Silence Return to Silence

Default GPIO allocation version 1.30 firmware onwards

7.6 GPIO Input Pin out:

GPIO-0 (pin 18) Gnd to select preset 1, Tuner 1

GPIO-1 (pin 17) Gnd to select preset 2, Tuner 1

GPIO-2 (pin 16) Gnd to select preset 3, Tuner 1

GPIO-3 (pin 15) Gnd to select preset 4, Tuner 1

GPIO-4 (pin 14) Gnd to select preset 1, Tuner 2

GPIO-5 (pin 1)

Gnd to select preset 2, Tuner 2

Common Grounds: pins 2, 3, 4, 11, 12 & 13 +5V Current Limited: pins 24 & 25

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ProDAB Quick Start Guide
8 Web Interface
Using a web browser navigate to the IP address of the ProDAB (default 192.168.0.7) Default Username & Password: Sign in as: Username ­ admin Password ­ 1234
Note that the web interface has been tested with the following browsers: Firefox, Chrome & Internet Explorer version 10 onwards

The Summary screen shows information about both tuners on Dual units and Tuner 1 on ProDAB-1 Plus.

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ProDAB Quick Start Guide
Click here to play audio for currently selected tuner. Note: that when option “STREAMER SOURCE” is set to “Tuner 1 Only” in Engineering menu you can only listen to Tuner 1. Click here to turn off audio monitor stream.
This is the user you are currently sign in as.
This will download an “embedded” copy of the full User Guide as a PDF.
Click here to Sign Out.
In order to control a Tuner using the web interface, it has to be selected.

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System Block Diagrams

DAB/FM Tuner 1
MP3 Player
Internet Web Radio
DAB/FM Tuner 2
DAB/FM Tuner 1
DAB/FM Tuner 2
MP3 Player
Internet Web Radio

Output 1 Output 2 Signal Processing
ProDAB-2 Dual Independent Mode
Output 1 Output 2 Signal Processing
ProDAB-2 Dual Diversity Mode

Analogue OP 1 L&R
AES OP 1

AES OP 2

Streaming Output

Analogue OP 2 L&R

Analogue OP 1 L&R
AES OP 1

AES OP 2

Streaming Output

Analogue OP 2 L&R

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10 Rear Panel

Analogue balanced audio outputs, gain adjustable from 0dBU to +20dBU.
Pin 1 = GND Pin 2 = + output Pin 3 = – output
AES3 digital output, sampling rate adjustable via menu to 48Kbps or 96Kbps
Pin 1 = GND Pin 2 = + output Pin 3 = – output

Antenna input for DAB & FM F-Type female connector fitted to unit.

GPIO allocation version 1.30 firmware onwards

Inputs: GPIO-0 (pin 18) GPIO-1 (pin 17) GPIO-2 (pin 16) GPIO-3 (pin 15) GPIO-4 (pin 14)

Gnd to select preset 1 Gnd to select preset 2 Gnd to select preset 3 Gnd to select preset 4 Gnd to select preset 5

Outputs **: GPO-0 (pin 23) GPO-1 (pin 22) GPO-2 (pin 21) GPO-3 (pin 20) GPO-4 (pin 19)

Low = In changeover to MP3 Low = RDS TA Traffic Flag active Low = Mono Low = Audio silence detect Low = RSSI below threshold

Common Grounds: pins 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 & 11 +5V Current Limited: pins 24 & 25
RS232 I/O ­ ProDAB Production units allows access to operating system console at 115k baud.

Pin 2 = Tx data Pin 3 = Rx data Pin 5 = GND

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ProDAB Quick Start Guide
RJ45 LAN connector 10/100 auto negotiation MDX USB Can be used for additional MP3 storage.
IEC Mains inlet ­ Fuse T3.15A 90/240VAC Provision for IEC retaining clip and M4 Earth tag

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ProDAB Quick Start Guide
Audio & Design Reading Ltd. Hereby confirm that the ProDAB1 conforms to the requirements of EN50081-1 & EN60950 Provided it is used as described in this manual and in the sections below:
To comply with the EMC Directive EN50081-1 (generic), it is recommended that all-digital input and output cabling be of Belden type 1696A or its exact equivalent. All input/output connectors must be of good quality and be constructed with RF protected covers. All interconnections via cables must carry a full earth shield, which should be connected to the RF shielded covers at all times. Input/output cables must be terminated to comply with the AES/EBU and IEC958 digital audio standards protocol.
This unit is wired so that a technical earth is connected to the chassis via the mains input socket. It is recommended that this connection be made to the mains earth system at all times to minimise the effects of radiated and conducted RF emissions.
Low Voltage Directive EN60950: There are no serviceable parts within the unit. All repair work must be referred to a qualified electronic engineer or returned to the factory. In the case where the unit contains plug in modules, always switch off the unit before removing or replacing any module.
Audio & Design Reading Ltd does not accept responsibility for non-compliance if the above criteria are not met in full.
WARRANTY: All Audio & Design products are of the highest quality and designed to give long, trouble free service. Nevertheless they are fully guaranteed for one year from the date of purchase. Provided any faulty equipment is returned, post paid, to Audio & Design or its established Agent by the original purchaser during the relevant period we will repair, or at our opinion replace, entirely free of charge all breakdowns due to faulty workmanship or materials. In keeping with normal practice, breakdowns due to fair wear and tear, misuse, neglect or faulty adjustment by the user, are outside the scope of this warranty.
Warning: Warranty repairs are subject to serial number checking. We reserve the right not to service any equipment whose serial number has in any way, been defaced or altered.
WEEE Directive: The end user must excise due care when disposing of this product at the time it is deemed as waste material.
RoHS: The current status of Audio & Design products can be obtained from www.adrl.co.uk/Rohs.htm
Audio & Design Reading Ltd practices lead-free manufacturing processes. Lead free solder is used on the surface-mount PCB manufacturing processes and for hand soldering. Printed circuit boards used are immersion tin plated, and as such use no lead. The manufacturing processes include the assembly of purchased components from various sources. Our products are offered as RoHS compliant, or lead free, only after sufficient evidence is received from the component manufacturers that their components are RoHS compliant. Audio & Design Reading Ltd relies solely on the distributor, or manufacturer of the components for identification of RoHS compliance. Whilst every effort is made to ensure compliance, Audio & Design Reading Ltd makes no warranty, or certification, or declaration of compliance concerning said components. Audio & Design Reading Ltd defines “Lead Free” as pertaining to any product, which has been manufactured by Audio & Design Reading Ltd using components which have been declared by the manufacturers as “Lead Free”. All statements by Audio & Design Reading Ltd of RoHS compliance are based on component manufacturer documentation

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Audio & Design 51 Paddick Drive
Lower Earley Reading
Berkshire RG6 4HF UK
Tel.: +44 118 324 0046
Info: sales@adrl.co.uk Web: www.adrl.co.uk
Copyright © 2024 Audio & Design Reading Ltd Rev 4.1
Audio & Design

References

• Audio Design Reading | High quality professional audio equipment.
• adrl.co.uk/Rohs.htm
• FileZilla - The free FTP solution

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