Audio & Design ProDAB-1 Plus, ProDAB-2 Dual User Manual

ProDAB-1 Plus & ProDAB-2 Dual

User Guide

Audio & Design

Rev 3.4

Firmware 1.72/1.74

ProDAB User Guide

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Table of Contents

1. Initial Configuration ........................................................................................................................................... 3

1.1 Getting Started .......................................................................................................................................... 3

1.2 OLED DAB Display screens ........................................................................................................................ 5

1.3 Other OLED display ICONs ......................................................................................................................... 5

2. Network set-up .................................................................................................................................................. 6

2.1 Login details for MP3 upload: ................................................................................................................... 7

3. DAB Scan ............................................................................................................................................................ 8

4. Manual DAB Tune .............................................................................................................................................. 9

5. System Menu ................................................................................................................................................... 10

6. Change Over ..................................................................................................................................................... 13

7. MP3 menu ........................................................................................................................................................ 16

8. Engineering menu ............................................................................................................................................ 17

8.1 GPIO Outputs .......................................................................................................................................... 20

8.2 GPIO Output options available ................................................................................................................ 20

8.3 GPIO Output Pin out ................................................................................................................................ 20

8.4 GPIO Inputs ............................................................................................................................................. 21

8.5 GPIO Inputs options available ................................................................................................................. 21

8.6 GPIO Input Pin out................................................................................................................................... 21

9. Signal Quality troubleshooting......................................................................................................................... 22

9.1 OLED Technical Information Screens ............................................................................................................. 22

9.2 How ProDAB Tunes to a DAB signal ............................................................................................................... 23

9.3 DAB scan ......................................................................................................................................................... 24

10. AES67 Support ............................................................................................................................................. 25

11. System Block Diagrams ................................................................................................................................ 28

12. Rear Panel .................................................................................................................................................... 29

11.1 Inputs ........................................................................................................................................................... 29

11.2 Outputs ........................................................................................................................................................ 29

11.3 Common Grounds ....................................................................................................................................... 29

11.4 +5V Current Limited supply ......................................................................................................................... 29

13. Firmware Upgrade ....................................................................................................................................... 31

14. Web Interface .............................................................................................................................................. 32

13.1 Default Username & Password ............................................................................................................... 32

15. Spectrum Analyser Utility (Front Panel Menu) ............................................................................................ 48

WARRANTY: ..................................................................................................................................................... 51

Audio & Design

51 Paddick Drive, Lower Earley, Reading

Berkshire, RG6 4HF. UK Tel: [phone] Info: [e-mail] Web:www.adrl.co.uk

Copyright © Audio & Design Reading Ltd 2018 Rev 3.4 (Firmware 1.72/1.74)

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1. Initial Configuration

1.1 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.
When displaying currently selected service, station or track press

to change displayed information.

Locked

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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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 16Ω

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

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

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

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1.2 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

1.3 Other OLED display ICONs

Change Over

Disabled

Change Over

Enabled

Change Over

Active

Change Over

Mode Changing

Streaming port

5000 active

LAN

Connected

LAN

Disconnected

LAN & Streaming

Connected

LAN & Streaming

Web Radio

Mode

AES67 or

Multicast active

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2. Network set-up

Press OK then select SYSTEM with  then . Set IP
address mask & default gateway.

Select NETWORK MENU with  or  then 

Choose between Static & DHCP using  keys

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

To edit use  to select &  to change items then OK
to save

To edit use  to select &  to change items then OK
to save

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

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 To save STATIC settings

Or if DHCP has been selected  to save

Then  to reboot unit

Units are shipped with the network set to STATIC:
IP address - 192.168.0.7
Net Mask – 255.255.255.0
Default Gateway – 192.168.0.254
DNS – 8.8.8.8 (Google)

To upload MP3 files use a SFTP client such as Filezilla, but, note that we use non-standard port
for SSH & SFTP of 43222 See MP3 Menu section below on how to upload files using a USB
stick.

2.1 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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3. DAB Scan

Press OK then select DAB Scan with  then 

Choose between Tuner 1 & 2 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

NORMAL SCAN or SLOW SCAN

Press OK to start Scan or  to change scan starting
MUX or  to change scan ending MUX.

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4. Manual DAB Tune

Press OK then select Manual DAB Tune with  then 

Choose between Radio section A or B using  keys
Then  to go to next menu option

Choose between KEEP STATION LIST or CLEAR LIST FIRST
which will clear current station list  Then  to go to
next menu option

Select MUX with  and  to tune to selected MUX

The unit will attempt to tune to selected MUX.
1:1:1:1 are discovery flags for:
Acquired : Ensemble : Service List : Service Audio

Select service with  and OK to jump out of menu
If the unit has been used in a different location then it’s recommended that you

CLEAR LIST FIRST.
This will ensure that there are no conflicts with previously tuned services SID & CID

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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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 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

 to access Network sub-menu, see Network setup

section on previous pages

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 to access sub-menu

 to access sub-menu, manage copy/delete stored MP3

files

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6. 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

Preset 2

DAB

MP3 or Web

FM

MP3 or Web

Web

MP3 or DAB or FM

FM

DAB

DAB

FM

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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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.

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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.

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.

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7. MP3 menu

ProDAB can store internally up to 12GB of MP3 files. To upload MP3 files to the unit, copy
your files to the root of a USB stick formatted as FAT32 and insert in to any of the USB sockets
on the rear of the unit.

File names for MP3 files MUST NOT contain spaces.
If you are in MP3 mode whilst uploading files, then you need to change mode and
back to MP3 in order to update the file list.

Delete files

With MP3 file operations press info/Ins key to upload
files and Unlock/Clr key to delete files

Upload files

MP3 file can be selected on your local PC and
uploaded via the web interface.

First option in MP3 menu allows you to copy or Delete
files on the USB stick. Choose file using  keys press

Ins key to upload to ProDAB or Unlock key to delete.

key takes you to next menu 

MP3 files on the ProDAB are stored in /home/mp3 this
menu allows you select () and delete stored files.

MP3 playback options press  to change: Repeat
current track

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8. 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

 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

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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

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

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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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8.1 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

8.2 GPIO Output options available

OLED Display

Changeover

Changeover Active

Power detect wav

Output toggles at 1.5Hz

Power detect ‘1’

Output pulled low whilst unit is operational

Power detect ‘0’

Output high whilst unit is operational

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 1.72/1.74 firmware onwards

8.3 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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8.4 GPIO Inputs

 &  to change

8.5 GPIO Inputs options available

Option

Activate (Closing contact to GND)

Release (Open)

0

No action

No action

1

Preset 1 Tuner 1

No Action

2

Preset 2 Tuner 1

No Action

3

Preset 3 Tuner 1

No Action

4

Preset 4 Tuner 1

No Action

5

Preset 1 Tuner 2

No Action

6

Preset 2 Tuner 2

No Action

7

Preset 3 Tuner 2

No Action

8

Preset 4 Tuner 2

No Action

9

Preset 2 Tuner 1

Return to Preset 1 Tuner 1

10

Preset 3 Tuner 1

Return to Preset 1 Tuner 1

11

Preset 4 Tuner 1

Return to Preset 1 Tuner 1

12

Preset 1 Tuner 1

Return to Silence

13

Preset 2 Tuner 1

Return to Silence

14

Preset 3 Tuner 1

Return to Silence

15

Preset 4 Tuner 1

Return to Silence

Default GPIO allocation version 1.30 firmware onwards

8.6 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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9. Signal Quality troubleshooting

9.1 OLED Technical Information Screens

Press to cycle through screens

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9.2 How ProDAB Tunes to a DAB signal

When tuned to a new RF DAB channel (as shown by the RF flag), ProDAB will first attempt to
obtain low level data sync with the received digital stream. The AQ (acquisition) flag will be set
when this is stable. At this point, a rough measure of signal level is also recorded (RSSI level).
ProDAB will then attempt to obtain ensemble information (EN flag), and then wait for, and
download, the service list (SL flag), which contains the list of services with their SID and CID
numbers. Finally, ProDAB will lock onto the desired audio service (SV flag) and audio enabled.

If no multiplexer is present, or the signal too low or bad, the AQ flag will not be set, even
though RSS may show some positive value (background noise or other carriers) With a good
clean DAB signal (i.e. RSS greater than 30), the AQ flag should be set within 2-3 seconds. The
Ensemble flag (EN) should follow within a second or so, and the Service list (SL) after a few
more seconds. If the "wanted" SID/CID services are not present in the service list, the audio
will not be enabled. Note that ProDAB will accept a CID value of FFFF as a wildcard, and will
lock to the first SID, whatever its CID value present in the service list.

The above tuning status flags are shown on the LDC display in the fourth information display
page in real time form (second line from top). (enter (I) four times) This can be used to show
how ProDAB is tuning and how long it is taking to sync to the various data blocks.

The seventh line of the second information display page (enter (I) once) shows the current
RSSI, SNR (Signal to noise ratio) CNR (carrier to noise ratio) and the accumulated number of
block errors to date. Observing the latter over a short period (e.g. a minute) can give a good
indication on how good the received stream is.

The flags are also shown when in DAB manual tune mode (bottom row) the message format
being:
("nn" and "mm" are count up timers)
** TUNING nn RF:AQ:RS:EN:SL mm **

To help visualise the number of DAB multiplexers in the band, a "quick DAB scan" function is
available under the engineering menu (/SYSTEM/ENGINEERING/QUICK DAB SCAN) This shows
a continuous scan of the relevant band together with their RSSI and SNR levels. This can be
left running continuously to visualise a snapshot of all multiplexers present.

Note: See page 9 for more information about how to manually DAB tune.

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9.3 DAB scan

 key takes you to next menu level

Press  to change
Options:
Radio A
Radio B

 key takes you to next menu

Press  to change
Options:
RESCAN ( Keep Station List)
NEW SCAN (Clear List

 key takes you to next menu

Press  to change
Options:
THOROUGH SCAN ( Takes Longer)
NORMAL SCAN (Faster)

 key takes you to next menu

Press OK to start scan

The unit will scan all DAB MUX frequencies and display
any MUXes it finds along with RSSI & SNR. This will run
continuously until stopped by pressing the OK button

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10. AES67 Support

From firmware version 171/170 ProDAB supports basic AES67 connectivity with audio
algorithms for G.711 & PCM 24bit as well as multicast streaming output.

Select Main Menu | SYSTEM | Engineering Menu |
AES67 Menu 

This is the Public IP address, set this if you are using
NAT or Public IP address is different from LAN IP
Address
To edit IP address use  to select &  to change
items then OK to save.
Press  Next Menu

To edit Port use  to select &  to change items
then OK to save. Note traditional SIP port is 5060
Press  Next Menu

Leave as 000.000.000.000 if you wish SIP to negotiate
Remote IP address otherwise, to edit IP address use

 to select &  to change items then OK to save.

Press  Next Menu

Leave as 00000 if you wish SIP to negotiate Remote
Port address otherwise, to edit Port use  to select
&  to change items then OK to save.
Press  Next Menu

With Timeout set to zero, ProDAB will continuously

send UDP audio packets until it receives a “BYE”

command via SIP.
To change Timeout use  to select &  to change
items then OK to save.
Press  Next Menu

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By default ProDAB will answer any calls made to
SIP:[e-mail]. Calling
SIP:[e-mail] will access built-in 1kHz
tone generator.
To edit number use  to select &  to change
items then OK to save.
Press  Next Menu

ProDAB supports G.711 & PCM24bit (48,000 kHz
Stereo) audio modes. To edit mode use  to select &

 to change items then OK to save.

Press  Next Menu

ProDAB can determine the IP address of units trying to
connect using the following methods:

 From UDP source address (default)
 From Contact Field
 From fixed IP/port – set in earlier menus.
 Multicast

When Multicast is selected ProDAB will immediately
start sending Multicast packets.
Typical values for Axia X-node using multicast
IP Address 239.192.x.x
Port 5004

Multicast Address of unit

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Multicast Port

Not needed for multicast

To set ProDAB for multicast transmit:

 Go to AES67 menu
 Enter multicast address under "rem audio ip addr e.g. 239.192.006.001
 Enter multicast port under "rem audio port" e.g. 5004
 Enter multicast protocol (96) under "audio protocol"
 Enter "000" under "audio timeout" (unless time limited multicast is wanted)
 Select multicast under "rem audio address"

This will start multicast immediately on the given port

To turn off multicast (from AES67 menu):

 Select other than multicast under "rem audio address"

To select MULTICAST reception on an Axia xNode:

 Log into the axia web interface
 Select "destinations"
 Under line # enter "239.192.6.1:5004" then apply

xNode will start receiving immediately, note the displayed entry may change

Note: Axia xNode supports multicast addresses by default in the range 239.192.x.x

To select UNICAST reception on the xNode:

 Log into the xNode web interface
 Select "destinations"
 Under line # enter "sip:1@239.192.6.1:5004" then apply

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11. System Block Diagrams

DAB/FM

Tuner

1

DAB/FM

Tuner

2

MP3

Player

Internet

Web

Radio

Output 1

Output 2

Analogue

OP 1

L&R

AES

OP 1

AES

OP 2

Analogue

OP 2

L&R

Streaming

Output

Signal Processing

ProDAB-2 Dual

Independent Mode

DAB/FM

Tuner

1

DAB/FM

Tuner

2

MP3

Player

Internet

Web

Radio

Output 1

Output 2

Analogue

OP 1

L&R

AES

OP 1

AES

OP 2

Analogue

OP 2

L&R

Streaming

Output

Signal Processing

ProDAB-2 Dual

Diversity Mode

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12. 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.

Default GPIO allocation version 1.30 firmware onwards

11.1 Inputs:

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

11.2 Outputs:

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

11.3 Common Grounds: pins 2, 3, 4, 11, 12 & 13

11.4 +5V Current Limited supply: pins 24 & 25

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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

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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13. Firmware Upgrade

Firmware upgrades will be supplied as a package of files in ZIP format.

This can either applied directly from the web GUI (Version xxx onwards) by browsing to the
ZIP file or by unzipping files to the root of a USB flash drive formatted FAT32

Root of USB flash drive should look like above.
Insert the flash drive into one of the USB sockets on the rear on the unit.
After a few minutes the ProDAB will re-start using the new firmware.

From version 160/160 there is new DAB front-end firmware available (version 6.0.4) please
contact [e-mail] if you wish to apply this upgrade.

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14. Web Interface

Using a web browser navigate to the IP address of the ProDAB (default 192.168.0.7)

13.1 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

System information & User Information is only
available when you sign In as Admin. Users can only
be added or changed when you sign in as Admin.

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Info Bar ICONs

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.

Change Over mode disabled

Change Over “Armed” Set to AF Threshold mode,

Preset 1 currently selected

Change Over “Active” Set to AF Threshold mode,

Preset 2 currently selected

This is the user you are currently signed in as.

Click here to access or download an “embedded”
copy of the User Guide as a PDF.

Click here to Sign Out.

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In order to control a Tuner using the web
interface, it has to be selected in the
individual Tuner Info page.

Select here

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

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DAB Mode Info

MP3 Mode Info

FM Mode Info

Web Radio Mode Info

RSSI (Received Signal Strength Indicator) and
SNR (Signal to Noise Ratio) for DAB reception.
Note: Black bar on RSSI gauge is the threshold
for change over set in the Change Over menu.

Real time audio level indicators. LED meter 0dBu audio output is factory set to

18dB below FSD (Full Scale Digits)

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Select for more detailed
information to be displayed.

Current mode selected. Note:
only one tuner at a time can be
set to Web or MP3 mode.

Click here to take control of a
tuner.

Black markers indicate set
threshold for change over for
either RSSI or Audio level (silence)
set in Change Over menu.

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Real time history display of Audio level and RSSI

Service list for MUX that tuner is currently tuned to.

The table columns can be sorted by clicking in the heading cell of each column.

Using “Change Mux” button you can select a specific MUX from the dispalyed table. ProDAB

will attempt to turn to the selected MUX and if it is available will then display the Service List.

Note that Services will then also be added to the Station list.

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Stored Stations list obtained by DAB SCAN or added via “Change MUX” button.

Click here to set or recall presets.
Presets can be any combination of DAB, FM,
MP3 or Web. Up to 12 presets can be
defined.
Click the Number to recall a preset.

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Preset Details

Preset Edit Screen

System information is only available
when you sign In as Admin.

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GPIO Options available

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Press “Upgrade” then browse to upgrade
file, the “Install” – The upgrade process

takes about 3 minutes and you will need
to refresh the browse page.

Note: System configuration files and USB
upload script are downloaded as a single
zip file.

To restore, either unzip all files to the root
of a blank USB stick formatted FAT32 or

Upload via the “Restore” button using the

web application.

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Change Over Armed

Change Over Active

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DAB Band Scan, Select Start & End Frequency either by MUX or frequency. Scan setting have
been optimised for the ProDAB but can be changed if needed.

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15. Spectrum Analyser Utility (Front Panel Menu)

The ProDAB has a built-in simple spectrum analyser, which can be accessed as detailed below.
All scans are run using the FM mode of the chip set (DAB mode only “looks” for multiplexers).
Typical setting as below:

Note: That when in this mode the current tuner is dedicated to this function.

Press OK then select SYSTEM with  then



Use  to navigate to ENGINEERING
MENU then 

Use  to navigate to FM SCAN MENU
then 

Select Tuner with  then  to go to next
option

Select either DAB or FM band with 
then  to go to next option

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 to go to next option, or change with 

 to go to next option, or change with 

 to go to next option, or change with 

Set frequency step, either 50kHz or 100kHz
with  then  to go to next option

Set settling delay (time system waits after
frequency has been set) with  then 
to go to next option

Set display “gain” in order to optimize
display with  then  to go to next
option

Test type:
FM Scan (also covers DAB frequency band)
DAB Scan for Muxes
Set with  then  to go to next option

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 To continuously run scan, Unlock/Clr to

stop

Example “zooming” in to a specific MUX

Mux 12A very low level between 11D & 12B

11D – RSSI = 42dBuV
12A – RSSI = 22dBuV
12B – RSSI = 41dBuV

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Audio & Design Reading Ltd. Hereby confirm that the ProDAB-2 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.

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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.: [phone]

Info: [e-mail]

Web:www.adrl.co.uk

Copyright © Audio & Design Reading Ltd 2018 Rev 3.3 (Firmware 1.72/1.74)