DEVA BROADCAST DB4402 DEVA Broadcast DB4402.pdf

MAINTENANCE AND OPERATION

INSTRUCTION MANUAL

DB4402

High-Performance Dual

FM Monitoring Receiver & Radio Streamer

Publish Date: 04-Jan-2018

Contents

Introduction ........................................................................................................................................ 5

Typographic conventions .................................................................................................................. 6

General Information .......................................................................................................................... 7

Product Features ................................................................................................................................ 8

Technical Specications .................................................................................................................. 9

Factory Default Settings .................................................................................................................. 11

Monitoring Receiver ...................................................................................................................... 11

Network Settings ....................................................................................................................... 11

WEB Server .............................................................................................................................. 11

E-mail ....................................................................................................................................... 11

Audio......................................................................................................................................... 11

GSM MODEM .......................................................................................................................... 11

SNMP Settings .......................................................................................................................... 12

Management Settings ................................................................................................................ 12

Channel Presets Default Settings ............................................................................................. 13

Audio Streamer .............................................................................................................................. 14

Network Settings ............................................................................................... 14

WEB Server .............................................................................................................................. 14

Audio......................................................................................................................................... 14

GSM MODEM .......................................................................................................................... 14

SNMP Settings .......................................................................................................................... 14

Management Settings ................................................................................................................ 15

Safety Precautions ............................................................................................................................ 16

Panel Indicators and Appointments ............................................................................................... 17

Front View ..................................................................................................................................... 17

Rear View ...................................................................................................................................... 18

Getting Started ................................................................................................................................ 19

Connection .................................................................................................................................... 19

Network Settings ............................................................................................................................ 20

Login ............................................................................................................................................. 21

WEB Interface FM Monitoring Receiver ...................................................................................... 22

Device Control Interface ............................................................................................................... 22

Main Screen ................................................................................................................................... 23

RDS/RBDS Screen ......................................................................................................................... 24

ODA Screen ................................................................................................................................... 25

FM Graph Screen .......................................................................................................................... 26

MPX Screen ................................................................................................................................... 27

Spectrum Analyzer Screen ............................................................................................................. 28

Scope Screen.................................................................................................................................. 29

Bandscan Screen ........................................................................................................................... 30

Status Screen ................................................................................................................................. 31

LOG Screen ................................................................................................................................... 32

Settings Screen .............................................................................................................................. 33

Main Settings Screen ................................................................................................................ 33

Channel Settings Screen ........................................................................................................... 35

Alarm / Warning Triggers Dened ................................................................................................ 37

Alarm Notications ....................................................................................................................... 39

Management Screen ...................................................................................................................... 40

WEB Interface FM Radio Streamer .............................................................................................. 42

Device Control Interface ............................................................................................................... 42

Main Screen ................................................................................................................................... 43

RDS/RBDS Screen ......................................................................................................................... 44

ODA Screen ................................................................................................................................... 45

Bandscan Screen ........................................................................................................................... 46

Status Screen ................................................................................................................................. 47

LOG Screen ................................................................................................................................... 48

Settings Screen .............................................................................................................................. 49

Main Settings Screen ................................................................................................................ 49

Presets ...................................................................................................................................... 51

Management Screen ...................................................................................................................... 52

External GSM Modem Settings ...................................................................................................... 54

Network Discovery ........................................................................................................................... 56

WARRANTY TERMS AND CONDITIONS ................................................................................. 57

Product Registration Card .............................................................................................................. 58

THIS PAGE

IS INTENTIONALLY

LEFT BLANK

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Introduction

DEVA Broadcast Ltd. is an international communications and high-technology manufacturing
organization, its corporate headquarters and facility located in Burgas, Bulgaria. The company
serves the broadcast and corporate markets worldwide – from consumers and small businesses to
the largest global organizations. It is dedicated to the research, design, development and provision
of advanced products, systems and services. DEVA launched its own brand back in 1997 and has
nowadays evolved to become known as a market leader and internationally reputed manufacturer
of user-friendly, cost-effective and innovative broadcast products.

Creativity and innovation are deeply woven into DEVA corporate culture. Through successful
engineering, marketing and management our team of dedicated professionals creates future­oriented solutions to improve customers’ performance. You may rely that all issues communicated
to our crew would be addressed accordingly. We pride ourselves on our pre and post-sales support
and purchase services, which along with the outstanding quality of our radio gear have won us due
respect and the market authority position.

DEVA best-of-breed solutions have become the best sellers for our partners. The strategic
partnerships which have been formed with industry leaders during all these years that we have been
operating on the broadcasting market, have proved us a reliable business partner and a valuable

asset, as our dealers worldwide would conrm. In constant pursuit of precision and long-term

satisfaction, DEVA enhances the reputation of our partners and clients alike. Furthermore, we have
already a proven merit as a credible partner provider.

Our portfolio offers complete line of high quality and competitive products for FM and Digital
Radio, Radio Networks, Telecommunication Operators and regulation authorities. For almost
two decades of intensive software and hardware development, we have achieved a unique price­performance and endurance of our product lines. Our company’s multitude of equipment and
services is in line with the latest technologies and key trends. The most recognizable characteristics
attributed to DEVA products are their clear-cut, streamlined design, easiness of use and cost­effectiveness: simplicity of forms but multiplicity of functions.

For us there is no stage when we deem that we have reached the most satisfactory level in our
work. Our engineers are in constant pursuit of new ideas and technologies to be captured in DEVA
solutions. Simultaneously, a strict control is being exercised at each step of any new development.
Experience and hard work are our fundament but the continuous improving process is what we
never leave aside. DEVA participates on a regular basis in all landmark broadcasting events, not
only to promote its products, but to exchange valuable know-how and experience. We are also
engaged in international large-scale projects involving radio and audio solutions which makes us
even more competitive on the global market.

All DEVA products are developed and produced in accordance with the latest ISO 9001 quality
control standards.

- 5 -

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Typographic conventions

This manual uses the following typographic conventions:

Style Used for

NOTE

Example

“Menu” on page XX. References

[OK] Interface Interactive buttons.

Settings

Important notes and recommendations
Used when example text is cited

Menu paths are represented as follows: Settings> General> Backup

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- 6 -

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General Information

The DB4402 – Dual FM Monitoring Receiver is a superb and highly practical combination
between a logger and a streamer which allows you to easily and accurately monitor and store all
important parameters of the FM signal while simultaneously giving you the opportunity to listen to
a constant, uninterrupted audio stream. The synchronized performance of both major functions is
at the core of the idea for this model, as well as the unit’s major asset. You can listen to the selected
audio feed at the same time as the logger campaign is running. The design of this device relies
on simplicity coupled with functionality to offer customers the opportunity of a single solution to
both tasks.

Providing the stable, dependable operation characterizing all DEVA products, the DB4402 is
fully DSP-based, with a built-in oscilloscope and an RDS/RBDS decoder with a BER meter. It also
permits users to set alarms for RF, MPX, Pilot and RDS signal via email, SMS or SNMP. What is
more, the TCP/IP and GSM connectivity provides easy remote control, monitoring and listening
to the radio signal from any location.

The device offers a “Restore Factory Defaults” option and easy update of the rmware. It is

an advanced solution giving customers a number of advantages and top all-round, multi-faceted
performance as both a monitoring tool and a streaming device.

- 7 -

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Product Features

• Fully DSP based core

• Built-in Oscilloscope allowing Left, Right and MPX display

• MPX Power measurement with data history

• RF Spectrum analyzer allowing to check the RF Carrier parameters

• MPX Spectrum analyzer for Left, Right and MPX measurements

• Selectable De-emphasis – 50µs and 75µs

• Built-in Stereo Decoder; Stereo Presence Detection

• Date & Time Settings with various formats

• LAN port for full TCP/IP remote control and monitoring

• Up to 90dBµV direct RF Antenna Input

• Adjustable alarms for RF, Deviation, Pilot and RDS signal

• Firmware update for future-proof operation

• Parameters Factory Restore Option

• FM Band 87 - 108 MHz Basic Spectrum Analyzer

• MPX, PILOT & RDS deviation meters

• LEFT and RIGHT demodulated audio level meters

• Headphones audio output

• RDS and RBDS decoder with BER meter

• Intuitive Application Interface

• Alarm dispatch via E-mail, SMS, SNMP

• Channel status reporting via SMS

• RF and RDS Measurements

• Remote Listening via optional GSM modem

• Real Time Audio Program Streaming

• Attractive price and very good price-performance ratio

• Very Intuitive Embedded WEB server for interactive supervision

• Proved and reliable hardware for 24/7/365 operating

• Easy Installation and Setup

• SNTP for automatic synchronization of the built-in clock

• Compact and Robust Aluminum Case for high RF immunity

- 8 -

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TECHNICAL SPECIFICATIONS

RF INPUT

Frequency Range 87.0 to 108 MHz, Frequency Agile
Step Increment 50 kHz
Antenna Input 50 Ω, BNC Connector, 10 dBµV sensitivity
Internal Attenuator 0, 10, 20 and 30dB, auto
Dynamic Range 0 dBµV to 100 dBµV
S/N 57dB, RF > 60dBµV, 30dB, RF > 10dBµV

METERING RESOLUTION & ACCURACY

RF Level 0 to 95 dBµV;

resolution - 0.1 dBµV;

accuracy - ±1 dB (10 to 85 dBµV)
Multipath 0 to 100%; accuracy - ±1%
MPX Deviation ±120 kHz;

resolution - 0.1kHz;

accuracy - ±10%, ±5% typically
MPX Power ±12 dBr;

resolution - 0.1dBr, 10 sec. integration;

accuracy - ±0.2 dBr
Audio Level -50 to +5dB;

resolution - 0.1dB;

accuracy - ±5%
Pilot Level 0 to 12 kHz;

resolution - 0.1 kHz;

accuracy - ±0.5 kHz, 1 to 12 kHz
RDS Level 0 to 9 kHz;

resolution - 0.1 kHz;

accuracy - ±10% typical and not guaranteed

AUDIO, MPX, PILOT, RDS LEVELS

Validity RF level preferably > 50dBµV
Multiplex Level Peak level, 256 ksamples over 1 sec.
Audio Level Peak level, 64 ksamples over 1 sec.
Pilot Level Mean peak level, 256 ksamples over 1 sec.
RDS Level Mean peak level, 256 ksamples over 1 sec.

STEREO DECODER

Stereo Separation >25dB, typical >30dB
De-emphasis 50 or 75µs, Selectable
THD 0.5%

OUTPUTS

Audio stream Icecast/Shoutcast compatible audio stream
Alarms E-mail, SMS, SNMP
Headphone 1/8” (3.5mm) Phone Jack
GSM Modem 15-pin Male D-Sub Connector

- 9 -

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RDS DATA DECODING

Standards European RDS CENELEC;

United States RBDS NRSC
Error Correction & Counting Yes
AF Decoding Yes
CT (Time/Date) Yes
PI, PTY, DI, MS Yes
TA/TP Yes
RT (Radio Text) Yes
PS (Program Service name) Yes

FFT SPECTRUM ANALYSIS

Input Composite MPX, Audio
Dynamic Range 80 dB
FFT Length 1024
Sampling Rate 256 kHz - Composite, 64 kHz - Audio

SCOPE ANALYSIS

Input Composite MPX, Audio
Trigger Mode Auto, Fall
Dynamic Range ±120 kHz
Sampling Rate 256 kHz - Composite, 64 kHz - Audio

USER INTERFACE

Web interface Full monitoring and control; Interactive and easy to use
Indicators 6 LEDs (on front panel)
Headphone Output 1/8” (3.5mm) phone jack (on front panel)

TCP/IP COMMUNICATION

Type Ethernet 10/100M Base-T Port
Connector RJ45 (on rear panel)

OPERATING CONDITIONS

Temperature 10° to 60°C
EMC Immunity 6V/m

POWER SUPPLY

Voltage 100-240V / 50-60 Hz / 25W
Connector IEC320

SIZE AND WEIGHT

Dimensions (W;H;D) 485 x 44 x 300 mm
Shipping Weight 540 x 115 x 300 mm / 4.5kg

- 10 -

Factory Default Settings

MONITORING RECEIVER

Network Settings

IP 192.168.1.2
Gateway 192.168.1.1
Subnet Mask 255.255.255.0
DNS 192.168.1.1
DHCP Disabled

WEB Server

HTTP Port 80

Username user

Admin

Password pass
Username user

User

Password pass

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E-mail

E-mail 1
E-mail 2
Sender
Server
Port 25

Audio

Stream Port 5000
Name DB4402 - FM Radio Monitoring Tool
Quality 128 kbps

GSM MODEM

Number 1
Number 2
Number 3
Number 4
Baudrate 9600

blank
blank
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blank
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- 11 -

SNMP Settings

Agent Enabled
Agent ID 1
Agent Port 161
Read Community DEVA44
Write Community DEVA44
Manager IP 192.168.1.1
Manager Port 162

Management Settings

Attenuator Auto
De-emphasis 50 µs
Internet Time Enabled
Internet Time Server pool.ntp.org
Internet Time Server Port 123
Time Zone UTC (+00:00)
Web session timeout 3 minutes
SNMP session timeout 1 minute
Watchdog Disabled
Target Address 192.168.1.1

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Ping Interval 300 seconds
Startup Delay 300 seconds
Max Retries 9

- 12 -

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Channel Presets Default Settings

Parameter CH 1 CH 2 CH 3 CH 4 CH 5 CH 6

Scheduling Disabled Disabled Disabled Disabled Disabled Disabled
Frequency 98 kHz 98 kHz 98 kHz 98 kHz 98 kHz 98 kHz
Alarms Control All Disabled All Disabled All Disabled All Disabled All Disabled All Disabled
Trigger Time 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes
Release Time 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes
RF Alarm Low Threshold 40 dBµV 40 dBµV 40 dBµV 40 dBµV 40 dBµV 40 dBµV
RF Alarm High Threshold 60 dBµV 60 dBµV 60 dBµV 60 dBµV 60 dBµV 60 dBµV
MPX Alarm Low Threshold 50 kHz 50 kHz 50 kHz 50 kHz 50 kHz 50 kHz
MPX Alarm High Threshold 90 kHz 90 kHz 90 kHz 90 kHz 90 kHz 90 kHz
MPX Power Alarm Low Threshold -8 dBr -8 dBr -8 dBr -8 dBr -8 dBr -8 dBr
MPX Power Alarm High Threshold 6 dBr 6 dBr 6 dBr 6 dBr 6 dBr 6 dBr
Left Alarm Low Threshold -30 dB -30 dB -30 dB -30 dB -30 dB -30 dB
Left Alarm High Threshold 3 dB 3 dB 3 dB 3 dB 3 dB 3 dB
Right Alarm Low Threshold -30 dB -30 dB -30 dB -30 dB -30 dB -30 dB
Right Alarm High Threshold 3 dB 3 dB 3 dB 3 dB 3 dB 3 dB
Pilot Alarm Low Threshold 5 kHz 5 kHz 5 kHz 5 kHz 5 kHz 5 kHz
Pilot Alarm High Threshold 9 kHz 9 kHz 9 kHz 9 kHz 9 kHz 9 kHz
RDS Alarm Low Threshold 2 kHz 2 kHz 2 kHz 2 kHz 2 kHz 2 kHz
RDS Alarm High Threshold

7 kHz 7 kHz 7 kHz 7 kHz 7 kHz 7 kHz

RDS Group Alarm All Disabled All Disabled All Disabled All Disabled All Disabled All Disabled

- 13 -

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AUDIO STREAMER

Network Settings

IP 192.168.1.3
Gateway 192.168.1.1
Subnet Mask 255.255.255.0
DNS 192.168.1.1
DHCP Disabled

WEB Server

HTTP Port 80

Username user

Admin

Password pass
Username user

User

Password pass

Audio

Stream Port 5000
Name DB4402 - FM Radio Streamer
Quality 128 kbps

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GSM MODEM

Number 1
Number 2
Number 3
Number 4

blank
blank
blank
blank

Baudrate 9600

SNMP Settings

Agent Enabled
Agent ID 1
Agent Port 161
Read Community DEVA44
Write Community DEVA44
Manager IP 192.168.1.1
Manager Port 162

- 14 -

Management Settings

Attenuator Auto
De-emphasis 50 µs
Internet Time Enabled
Internet Time Server pool.ntp.org
Internet Time Server Port 123
Time Zone UTC (+00:00)
Web session timeout 3 minutes
SNMP session timeout 1 minute
Watchdog Disabled
Target Address 192.168.1.1

Ping Interval 300 seconds
Startup Delay 300 seconds
Max Retries 9

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- 15 -

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Safety Precautions

IMPORTANT: Carefully read this paragraph as it contains important instructions concerning

operator safety and directions regarding the installation, operation and maintenance of the
equipment. Failure to observe the safety instructions and information given in this manual
constitutes an infringement of the safety rules and design specications provided for this piece
of equipment. DEVA Broadcast Ltd. declines all responsibility if any one of the safety rules given
herein is not observed. DEVA Broadcast Ltd. declines all responsibility if the end-user resells the
product. The equipment is to be used by people capable of operating it in a trouble-free manner
and it is assumed that they are aware of the following safety rules.

◊ Keep this manual with the utmost care and close at hand so that it can be consulted whenever

needed

◊ After unpacking the equipment, check its condition.
◊ Avoid banging the equipment.
◊ The packing material (plastic bags, polystyrene, nails, etc.) must never be left within reach of

children, as these items are potential sources of danger.

◊ Do not use the equipment in places where the temperature is not within the recommended

range, as specied by the manufacturer.

◊ Before connecting the equipment, make sure the nameplate specications correspond to the

mains electricity supply (the nameplate is located on the equipment enclosure).

◊ Do not remove the sticker from the equipment as it contains important specications and the

relevant serial number.

◊ To join the equipment to the mains supply, use the power cord purchased with the equipment.
◊ The equipment must be used only for the purposes it was designed for.
◊ Abuse or misuse of the equipment is extremely dangerous for people, pets and property. The

manufacturer declines all responsibility for damage and injury resulting from improper use and
mishandling.

◊ Certain basic safety rules must be observed when using electrical equipment, in particular:

- Never touch the equipment with wet and/or damp hands or other parts of the body.

- Keep the equipment away from drops of water or sprinkling systems.

- Never use the equipment near high heat sources or explosive material.

- Do not introduce any extraneous matter into the equipment.

- Do not allow children or untrained people to use the equipment.
◊ Before cleaning or servicing the equipment outside, disconnect its power supply and wait at

least 2 seconds before working on it, as recommended by current safety regulations.

◊ In the event of faults and/or improper operation, turn off the equipment, shut off the electrical

power and call your dealer.

◊ Do not attempt to make repairs and/or adjustments when covers/guards or circuit boards are to

be removed.

◊ Call your dealer for any repairs and be certain original spare parts are used. Failure to observe

this rule may adversely affect the safety level of your equipment.

◊ The equipment is to be connected to the mains supply and provided with adequate and efcient

earth conductors.

◊ When installing, leave a clearance of at least 1 cm around the equipment to allow air to pass

freely.

- 16 -

Panel Indicators and Appointments

FRONT VIEW

ADIOMONITORINGRECEIVER

FM R

2 3 4 5 6 7

1

PWR

PHO NES

1. Phones Output – Audio signal from the tuned frequency.

2. Power LED Indicator

3. Status

4. RX1 LAN LED Indicator. This LED can be in one of the following states:

- Off – No User Connected, Logger is active;

- Blinking – User is connected, Logger is inactive.

5. RX1 GSM LED Indicator. This LED can in one of the following states:

- Off – no GSM Modem;

- Fast Blinking – GSM Modem initialization;

- Slow Blinking – GSM Modem present and operating.

6. RX2 LAN LED Indicator. This LED can be in one of the following states:

- Off – No User Connected, Logger is active;

- Blinking – User is connected, Logger is inactive.

7. RX2 GSM LED Indicator. This LED can in one of the following states:

- Off – no GSM Modem;

- Fast Blinking – GSM Modem initialization;

- Slow Blinking – GSM Modem present and operating.

STATUS

LAN

RX1

LAN

GSMGSM

RX2

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ODEL

M

DB4402

- 17 -

REAR VIEW

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MADE IN BULGARIA

ww w.devabroadcast.com

1 2 3 4 5 6

RECEIVER 2

GSM MODEMANTENNA

LAN

C A U T I O N

MAX RF INPUT LEVEL

Receiver 2

1. LAN Port / Internet Input – standard RJ-45 port;

2. GSM Modem Connector - DB-15 male;

3. Antenna Input - BNC connector for FM Antenna;

Receiver 1

4. LAN Port / Internet Input – standard RJ-45 port;

5. GSM Modem Connector - DB-15 male;

6. Antenna Input - BNC connector for FM Antenna;

7. Power Supply;

8. GND

110 dB Vµ

RECEIVER 1

CAUTION: TO PREVENT ELECTRICAL SHOCK,

LANGSM MODEMANTENNA

DISCONNECT POWER BEFORE SERVICING

7

100-240VAC

50-63Hz, 25VA

8

GND

- 18 -

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Getting Started

For the normal operation of DB4402, you will need the following conditions:

- Standard Ethernet 10/100M connection;

- Correct assigned Network conguration and device settings;

To provide all these conditions please, follow the instructions below.

CONNECTION

1. Install the unit on its operation place;

2. Before connecting the AC Power, make sure that the fuse rating is in accordance with the
mains supply at your location. DB4402 Power Supply Factory Settings are: 100-240 VAC;
1AFuse.;

3. Connect the antenna cable to the RF antenna input connectors located on the rear panel of
the device - sections RX1 and RX2;

4. Connect the DB4402 to the TCP/IP network using two direct network cables - sections RX1
and RX2;

5. Connect the optional GSM modems via the supplied connection cable/s.

NOTE: Please, locate and select a proper place for the GSM antenna for achieving better GSM

network coverage.

NOTE: The GSM antenna must be far enough from the monitoring devices. The GSM modem

radiate RF signal that may cause spurious emissions that will make troubles with the accuracy of
the measurements.

- 19 -

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NETWORK SETTINGS

After connecting the network cable the Led ‘LAN’ located on the rear panel must be ON or

ashing. The next and most important step for conguration is the adjustment procedure of the

Network Communication. The settings shown below are Default Network Settings:

Monitoring Receiver IP 192.168.1.2

Audio Streamer IP 192.168.1.3

Mask 255.255.255.0

Gateway 192.168.1.1

DNS 192.168.1.1

DHCP Disabled

HTTP Port 80

Stream Port 5000

SNMP Agent Port 161

SNMP Manager IP 192.168.1.1

SNMP Manager Port 162

DB4402 is controlled through the built-in web server and a standard web browser can be used
to monitor its status or make some adjustments. To connect to the device you need to know its IP
address and follow the next steps:

• Open a WEB Browser.

• Enter the device IP address in the browser’s address eld.

NOTE: If the port is different than the default one (80), it is necessary to specify it, e.g.

http://192.168.1.2:9000

• Press <ENTER>.

If you do not know the IP address you can access DB4402 by using UPnP discovery in local
networks (see “UPnP and DB4402 discovery in Local Networks” on page 56).

ATTENTION: Depending on Internet Protocol Settings, assigned IP address may not be visible

outside your local network, thus device may be accessed only within that network. Consult with
your network administrator for the appropriate IP settings.

- 20 -

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LOGIN

ATTENTION: Upon Login on the FM Monitoring receiver, the Logger will stop and will start

again automatically after Logout.

The DB4402 can serve two users at a time, one logged in the FM Monitoring receiver, and one
logged in the FM Radio Streamer. Username and Password will be requested when connecting.
Default values are user and pass.

Enter your credentials and press Login button to continue to Main screen.

If the WEB Interface is already in use you will be prompted shortly:

NOTE: DB4402 will Logout automatically the current session after the dened WEB session

timeout. (see “Management Screen” on page 40)

- 21 -

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WEB Interface FM Monitoring Receiver

DEVICE CONTROL INTERFACE

Control interface is visually divided into three parts:

- Top – Navigational Menu;

- Middle – specic contextual readings;

- Bottom – the “dashboard” of the device - General Tuner and Channel readings, functional

buttons.

NOTE: Bottom section of the Control Interface is persistent regardless of the current screen,

allowing immediate tuner interactions.

1

5 6 7 8

2 3 4

9 10

11 12 13

1. Frequency indicator showing currently tuned frequency;

2. Stereo indicator;

3. RDS/RBDS presence indicator;

4. RF Attenuator Status;

5. RF Level indicator. The red zone (low level) indicates RF level below 20 dBμV;

6. MPX Level indicator;

7. Alarm presence indicator – will be lit in red when an alarm on at least one channel is
detected;

8. Channel Alarms indicator – will be lit in red when the Scheduler has detected an alarm on
channel. (see “Channel Settings Screen” on page 35);

9. Frequency set buttons;

10. Channel Preset Buttons – when one of the buttons is pressed, the Tuner will be set to the

predened frequency. Upon hovering with the mouse over a preset button, the name of the

channel will be displayed;

11. Device Time (“Management Screen” on page 40);

12. Session remaining time;

13. Listen Button – Button with double usage used to Play/Stop the current audio stream (an
audio device will be required).

- 22 -

MAIN SCREEN

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The main page shows meters for RF level, measured multipath level, baseband modulation

(positive and negative peaks), audio levels, PILOT and RDS/RBDS levels.

- 23 -

RDS/RBDS SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

One of our core competencies lies in the RDS/RBDS. The RDS/RBDS page is very

comprehensive, with a display of the RadioText (RTA and RTB), basic RDS/RBDS elds and a

table of all decoded RDS/RBDS groups with a percentage measurement based on the overall RDS/
RBDS data stream or group count. A very useful graph on this display is the rolling RDS/RBDS
bit error rate (BER) display.

Total groups Indicator – all received groups are systematized into a table, representing the
percentage/quantity of the groups in the received RDS/RBDS signal. The user selects how the
“Total groups received” data should be displayed: as Percents (%) or Count, by selecting the
corresponding button.

NOTE: The bit error rate or bit error ratio (BER) is the number of bit errors divided by the

total number of transferred bits during a studied time interval. Result closer or equal to 0 indicates
that no bit errors are detected and vice versa result closer or equal to 1 indicates that the received
transferred bits are only errors.

- 24 -

ODA SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

If the selected station transmits RadioText+ (RT+) or TMC – here will be displayed the
information from the supported ODA Groups.

A BER Indicator with graphics is placed at the right bottom part of the screen, showing 60 sec
history of the BER quantities.

- 25 -

FM GRAPH SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

The FM graph is a multi-colored plot of MPX, Pilot, Left and Right audio levels. These
mandatory parameters are represented in the time slice of 2 minutes, ensuring reading at a glimpse

all signicant parameters of the analog signal. Each parameter has its own color representation

and measurement units, which are indicated on the right-side of the graph. When RDS mode is
selected, the MPX and PILOT readings are in kHz. When RBDS mode is selected, the readings
are in %.

- 26 -

MPX SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

The MPX page shows the baseband MPX deviation as a function of deviation in kHz over the
observation period. The graph immediately shows modulation density.

There is also a rolling 30-minute graph of the MPX power with average indicator, measured in
dBr. The MPX Power is calculated continuously with an integration window of 60 seconds and

a new sample every 10 seconds. Therefore, the rst sample is available 60 seconds after tuning.

The rule of MPX Power provides to measure the modulation power which is seen equal to
modulate signal electric power, for one minute time period and to compare it to a sinusoidal
modulating signal one which deviates ±19kHz. The result, expressed in dB, must be lower or equal
to zero to comply with the rule.

- 27 -

SPECTRUM ANALYZER SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

The spectrum analyzer tab is a very useful feature: It is a MPX and audio spectrum display.
Initially it shows the MPX from 0-65kHz so that the readings of the currently selected source
(composite MPX or stereo Left/Right) to be clearly visible. The signal source to be calculated
and visualized is chosen from the Source section placed on the right part of the screen. Spectral
components of the selected signal are determined on the base of Fast Fourier Transform.

The window function can be selected through the relevant menu with interactive buttons. The
available windows and their features are given below. This table can be used to choose the best
windowing function for each application.

Window

Best type for

these Signal

Types

Frequency

Resolution

Spectral Leakage

Amplitude

Accuracy

Transient &

Rectangle

Synchronous

Best Poor Poor

Sampling

Barlett Random Good Fair Fair
Blackman Random or mixed Poor Best Good
Hamming Random Good Fair Fair
Von Hann Random Good Good Fair

Kaiser Random Fair Good Good

Flat-top Sinusoids Poor Good Best

User-dened frequency of the spectrum can be selected by moving vertical marker along the

horizontal scale. Values at the cross-point will be shown at the top right corner of the graph.

- 28 -

SCOPE SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

SCOPE screen represents the signals participating in the process of demodulating and stereo
decoding over time. In order for the signal source to be changed, the corresponding button on the
right-side of the graph should be pressed.

Once the Stereo source is selected, the following visualization modes are available:

- Scope – standard 2 channel oscilloscope:

- Lissajous – Lissajous gure representation of Left vs. Right channel;

- Star – Star-shaped representation of Left vs. Right channel;

- Cloud – Left vs. Right channel represented as cloud of points.

NOTE: Source “Stereo” visualizes the Left and Right signals at once.

- 29 -

BANDSCAN SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

This Screen evaluates FM broadcast band congestion by sweeping the tuner across the FM
band, logging every carrier and generating a spectrum display of carrier level vs. frequency.

In order for the Band scan process to be initiated, press the Start button and wait for the process
to complete. The current scan could be stopped at any time by pressing the Stop button. To evaluate

the RF level of specied frequency, move the vertical marker along the horizontal scale. Values at

the cross-point will be shown at the top right corner of the graph.

All of the performed Band scans can be downloaded to your computer into CSV format using
the “Export” button.

NOTE: While band scan is running, the Device Control Interface will be disabled.

- 30 -

STATUS SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

The status tab shows the alarm status of each parameter of the preset frequencies, along with the
basic device and network status (IP address, MAC, etc.).

The Channel parameters (RF, MPX, Pilot etc.) have several conditions:

- In range – green OK. (“Channel Settings Screen” on page 35)

- Out of range – red LO or HI;

- Signal monitoring is not enabled – n/a.

The status of the RDS/RBDS Groups Alarm is displayed on the bottom of the channels’ section:

- Green – RDS/RBDS Group is received;

- Red – RDS/RBDS Group is not received and an alarm has been triggered;

- White (blank) – RDS/RBDS Group is not received and no alarm has been triggered.

- 31 -

LOG SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

This screen shows the Device Log, which shows the last 100 important events. Selecting/

deselecting the corresponding check-boxes will lter the events by type.

- 32 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

SETTINGS SCREEN

WARNING: The applied changes will take effect upon pressing the SAVE button. All settings

marked with
through the screens will revert to the last saved changes.

NOTE: The edited eld will become red if the new value is invalid or out of range.

Main Settings Screen

require Reboot hence the Save & Reboot button should be used. Navigation

WEB Server

Enter desired WEB Server Port, Username and Password to be used when accessing the WEB
Server. There are 2 levels of access. Admin can access all screens and change all settings. The user
can access only the operational screens and has no access to the settings.

Network

The network addresses could be set manually (static IP) or automatically via the DHCP server.
To set static IP, MASK, GATEWAY and DNS addresses, the DHCP should be disabled. In order
for the built-in DHCP client to be activated, the function should be enabled. As a result, all network
addresses will become read-only. When the DHCP client is activated, all assigned values will be

shown in the relevant elds of the “Status Screen”. If due to any reason, the DHCP procedure

cannot be completed, DB4402 will use AutoIP and will generate an IP Address.

- 33 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

E-mail

Enter desired alarm recipients into e-mail 1 and/or e-mail 2 elds. Fill in your e-mail account

settings: Sender, Username and Password, Server and corresponding port. It is mandatory the type

of connection with the server to be specied from Security - Regular, STARTTLS, SSL/TLS. The

Server port will be changed accordingly. Please note that the most commonly used port will be

entered in the eld. If the port that is to be used is different, change it manually to the correct value.

We recommend you to use the ‘Test’ button and generate test e-mail, which upon success will

be delivered to specied E-mail 1 and/or E-mail 2.

Example of Test E-mail Message:

DB4402 Test Message.

Please do not reply to this e-mail.

Audio

Specify Port for audio Streaming, Name of the stream (which is used also for email sender
name and web title) and Quality (64, 96, 128, 192 or 256 kbps). The Audio Stream could be heard
using suitable audio player (MS Media Player or Winamp) or through a WEB interface by pressing
the “Listen” button.

GSM Modem

Up to four numbers for SMS alarm notications could be set. Baud Rate is mandatory for the

proper operation of the GSM Modem.

We recommend a test SMS to be generated (via pressing the ‘Test’ button), once all needed

settings are applied. Upon success, the SMS will be delivered to all specied GSM numbers.

Example of Test SMS Message:

DB4402 Test Message

NOTE: The current condition of the GSM Modem could be checked in the “Status Screen”.

SNMP

Specify Agent ID, Agent Port, Read/Write Communities, Manager IP and Manager Port.

Agent - enables/disables SNMP Agent.

NOTE: Agent ID is used for identication of the device among others when an SNMP

notication is sent.

Once all needed settings are applied, use Test button to generate a test notication, which upon

success will be received by the SNMP Manager.

Press the ‘Download’ button to download the latest available DB4402 SNMP MIB le.

NOTE: The MIB le may vary from one rmware revision to another. Downloading this le

from the device guarantees that you have the proper MIB le.

- 34 -

Channel Settings Screen

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

The DB4402 can monitor 6 FM Stations at regular intervals and send alarm notication via

E-mail, SMS, SNMP. Every Channel consists of a group of settings (explained in details below),
which are used when monitoring and alerting. Each preset has its own page where it is being

congured. Measurement windows can be set for each of the six parameters: RF level, Left and

Right audio levels, MPX (baseband) deviation, Pilot and RDS/RBDS deviation. Trigger and alarm
release times can be set for each alarm.

- 35 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

Channel

- Enable – enables/disables channel monitoring and sending of warnings and alarms;

- Frequency – specify the frequency to be monitored;

- Name – channel alias;

- Observation – specify the observation time for the current station (before switching to the

next channel).

NOTE: When MPX Power alarm is enabled the observation time must be more than 70 seconds.

Alarm Control

- Alarm – enables/disables the corresponding parameter alarm logging;

- Warning – enables/disables the corresponding parameter warning;

- E-mail – enables/disables E-mail notication;

- SMS – enables/disables SMS notication;

- SNMP – enables/disables SNMP notication.

NOTE: If the monitoring option is disabled, notications will not be sent, nevertheless whether

they are enabled or disabled. A click on the label (left or above) will enable/disable the entire
column/row.

To ensure early notication in case of a potential or actual problem, the DB4402 provides two­stage alarm notications.

- Stage 1 – Warning for a potential problem. It has a narrower range;

- Stage 2 – Alarm for actual problem. It has a wider range.

Alarm

- Alarm Range – interactive slider used to adjust the Low & High thresholds at which an alarm

will be generated;

- Warning range – interactive slider used to adjust the Low & High thresholds at which a

warning for possible problem will be generated;

- Trigger Time – waiting time before Active Alarm/Warning is generated;

- Release Time – waiting time before Idle Alarm/Warning is generated;

- RDS/RBDS Group Alarm – alarm only for selected groups will be generated.

IMPORTANT NOTE: Alarms are generated only when the Logger mode is running. Until

there is any user interaction, alarm will not be generated and send. The Logger starts running once
the user logs out of the WEB interface.

The release time denes the time, which should elapse in order for the received signal to be
dened as restored/OK. The release time is user-dened. What we recommend is the release time

to be bigger than the trigger time.

NOTE: When setting Trigger and Release times, have in mind that 01:00 means 1 minute, and

00:01 means 1 second.

- 36 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

ALARM / WARNING TRIGGERS DEFINED

After collecting all the data the DB4402 DSP core compares the values measured with the

predened by the user threshold levels for all the channels monitored. In case that any parameter

is out of its limits or a potential problem has been detected, the device will initiate the sending of

alarm/warning notication via the alarm type selected. All the alarms/warnings are stored in the

device’s log. You have to have in mind that, if there is a very short fault of the signal, with duration
less than the ‘channel trigger time’, the device would not trigger an alarm/warning.

There are several Alarm/Warning Triggers for the following parameters: RF, MPX, MPX Power,

Left/Right Audio, RDS and Pilot levels. There is an option for dening different limits for each

of the parameters. All these values, the ‘trigger time’ and the ‘release time’ have to be assigned
separately for each of the channels.

Block Diagram of Alarm Automata

- 37 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

Every time an observation event takes place, the Alarm/Warning Trigger’s State of the channel
refreshes (if necessary). For example: Let’s suppose that the Alarm/Warning Trigger is in Idle state.
Note, that an alarm is not triggered immediately when a parameter level passes over threshold
(above High Threshold or under Low Threshold). If the parameter level becomes stable (within
Thresholds) and Alarm/Warning Trigger Time is not elapsed, then Alarm/Warning Trigger remains
in Idle state. If Alarm/Warning Trigger Time expires and the parameter level is still out of bounds,

then Alarm/Warning Trigger changes its state to Active. This causes predened actions - Alarm/
Warning Notications (E-mail, SMS, SNMP trap) and Save a Log Record. The state will not be

immediately changed to Idle when the parameter stabilizes (within Threshold levels), but will wait
until ‘Alarm/Warning Release Time’ is elapsed. Meanwhile if the parameter passes over again any
Threshold, the Alarm/Warning Trigger will remain in Active state. If the parameter remains within
Threshold levels and Alarm/Warning Release Time expires, Alarm/Warning Trigger switches to

Idle state and again predened actions are initiated (as when entering Active state).

LEVEL

Hi Threshold

Alarm Idle No Alarm

Period > Alarm Trigger Time

Period < Alarm Trigger Time

Notification
for Active Alarm

Alarm Active Alarm IdleAlarm Idle No Alarm

Notification
for Idle Alarm

Period > Alarm Release Time

TIME

If RDS Group has not been received for more than Alarm/Warning Trigger Time state is changed
to Active. If state is Active and Release Time has elapsed and the RDS Group is received state is
changed to Idle. If the RDS Group is received before the Release Time is elapsed state remains
Active.

- 38 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

ALARM NOTIFICATIONS

Alarm/Warning Notications (E-mail, SMS, SNMP trap) consist of DB4402 Alias (see “Main

Settings Screen” on page 33), date and time of Alarm/Warning triggered, channel number, frequency

and information for Alarm/Warning activation or deactivation. The basic signal parameters are
evaluated and included as well.

Because of the SMS length limitations, only most important parameters are included, when

sending SMS Notications.

Example for E-mal Notication:

Date: 27 Sep 2011, 09:05:09

DB4402 - FM Radio Monitoring Tool reports ACTIVE alarm on 95.70MHz

- BG Radio (CH2)

Alarm: RF < 40dBuV

Signal parameters:
RF Level: 64.6 dBuV
MPX: 65.8 kHz
Left: -1.6 dB
Right: -1.9 dB
Pilot: 7.95 kHz
RDS: 4.47 kHz
Multipath: 3.3 %

Example for SMS Notication:

ACTIVE ALARM:CH#2

27.09.2011 09:08:34
FREQ:95.7MHz
RF:35.0dBuV *L*
MPX:60.3kHz
Left:-2.8dB
Right:-3.1dB
Pilot:7.92kHz
RDS:4.12kHz

NOTE: *L* for LOW (below threshold), *H* for HIGH (above threshold)

- 39 -

MANAGEMENT SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

RF Attenuator

Indicates the Antenna Input Attenuator’s setting. Attenuation level can be selected by pressing
on the preferred value. When AUTO is selected, DB4402 will adjust automatically the Attenuator’s
position.

De-emphasis

Indicates currently selected de-emphasis.

Date and Time / Internet Time

When Internet Time is enabled, DB4402 will automatically adjust its internal clock through
the Internet. When Internet Time is disabled, Date and Time should be entered manually into

corresponding elds or lled from PC Clock by pressing the ‘Get From PC’ button.

Ping Watchdog

The idea of this feature is a connection to DB4402 over the Internet to be established if the
device is connected behind a mobile router. If there is no connection with the Internet, some mobile
routers disconnect their radios and the DB4402 will become inaccessible. The Ping Watchdog will

make enough trafc for the router to stay connected to the network. Reboot is needed because

there are some routers that nevertheless the ping, will disconnect. Reconnection will be made only
if there is a disconnect and connect at the LAN port.

The Ping Watchdog will ping the specied IP address for connection status. If the remote IP
address does not respond to Ping for the specied number of times (Max Retries), the DB4402 will

power reboot. Please note that the ‘Ping Watchdog’ is disabled by default.

- 40 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

Firmware Update

If needed, DB4402’s rmware could be updated. Updating the rmware will ensure:

• New function(s);

• Improved performance;

• Eliminated bugs (if any).

To update the device rmware, please follow the steps listed below:

- Press the ‘Browse’/’Choose File’ button and select the new rmware le;

- Press the “Upload” button;

- Wait for the process to complete.

NOTE: Checking for updates regularly will ensure that the device is functioning correctly, and

avoid potential problems.

Reboot Device

Pressing Reboot button will initiate a ‘hardware reset’ as if you have switched off and on the
device. The previously applied/saved settings will not be deleted.

Factory Defaults

DB4402 could be restored to Factory Defaults from its non-volatile memory. The procedure is

quite simple - Press the ‘Restore Button’ and conrm the procedure.

WARNING: Before returning DB4402 to its factory defaults, all remote users should be

informed that they may cease to communicate with the device.

Session Timeout

Set WEB and SNMP sessions timeout. PLEASE NOTE that during session, the Logger mode
is not active, thus no Alarms are generated.

SNMP MIB File

Press the ‘Download’ button to download the latest available DB4402 SNMP MIB le.

NOTE: The MIB le may vary from one rmware revision to another. Downloading this le

from the device guarantees that you have the proper MIB le.

- 41 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

WEB Interface FM Radio Streamer

DEVICE CONTROL INTERFACE

Control interface is visually divided into three parts:

- Top – Navigational Menu;

- Middle – specic contextual readings;

- Bottom – the “dashboard” of the device - General Tuner and Channel readings, functional

buttons.

NOTE: Bottom section of the Control Interface is persistent regardless of the current screen,

allowing immediate tuner interactions.

1

2 3 4

5 6

7 8

9 10 11

1. Frequency indicator showing currently tuned frequency;

2. Stereo indicator;

3. RDS/RBDS presence indicator;

4. RF Attenuator Status;

5. RF Level indicator. The red zone (low level) indicates RF level below 20 dBμV;

6. MPX Level indicator;

7. Frequency set buttons;

8. Channel Preset Buttons – when one of the buttons is pressed, the Tuner will be set to the

predened frequency. Upon hovering with the mouse over a preset button, the name of

the channel will be displayed. The preset buttons are set in the Presets tab. For detailed
information, refer to “Presets” on page 51.

9. Device Time (“Management Screen” on page 52);

10. Session remaining time;

11. Listen Button – Button with double usage used to Play/Stop the current audio stream (an
audio device will be required).

- 42 -

MAIN SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

The main page shows meters for RF level, measured multipath level, baseband modulation

(positive and negative peaks), audio levels, PILOT and RDS/RBDS levels.

- 43 -

RDS/RBDS SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

One of our core competencies lies in the RDS/RBDS. The RDS/RBDS page is very

comprehensive, with a display of the RadioText (RTA and RTB), basic RDS/RBDS elds and a

table of all decoded RDS/RBDS groups with a percentage measurement based on the overall RDS/
RBDS data stream or group count. A very useful graph on this display is the rolling RDS/RBDS
bit error rate (BER) display.

Total groups Indicator – all received groups are systematized into a table, representing the
percentage/quantity of the groups in the received RDS/RBDS signal. The user selects how the
“Total groups received” data should be displayed: as Percents (%) or Count, by selecting the
corresponding button.

NOTE: The bit error rate or bit error ratio (BER) is the number of bit errors divided by the

total number of transferred bits during a studied time interval. Result closer or equal to 0 indicates
that no bit errors are detected and vice versa result closer or equal to 1 indicates that the received
transferred bits are only errors.

- 44 -

ODA SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

If the selected station transmits RadioText+ (RT+) or TMC – here will be displayed the
information from the supported ODA Groups.

A BER Indicator with graphics is placed at the right bottom part of the screen, showing 60 sec
history of the BER quantities.

- 45 -

BANDSCAN SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

This Screen evaluates FM broadcast band congestion by sweeping the tuner across the FM
band, logging every carrier and generating a spectrum display of carrier level vs. frequency.

In order for the Band scan process to be initiated, press the Start button and wait for the process
to complete. The current scan could be stopped at any time by pressing the Stop button. To evaluate

the RF level of specied frequency, move the vertical marker along the horizontal scale. Values at

the cross-point will be shown at the top right corner of the graph.

All of the performed Band scans can be downloaded to your computer into CSV format using
the “Export” button.

NOTE: While band scan is running, the Device Control Interface will be disabled.

- 46 -

STATUS SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Information on the basic device and network status (IP address, MAC, etc.) is available in this
section. If a GSM modem is connect to the DB4402, information on its current status will also be
available.

- 47 -

LOG SCREEN

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

This screen contains the device’s Log, which shows the last 100 important events. Selecting/

deselecting the corresponding check-boxes will lter the events by type.

- 48 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

SETTINGS SCREEN

WARNING: The applied changes will take effect upon pressing the SAVE button. All settings

marked with
through the screens will revert to the last saved changes.

NOTE: The edited eld will become red if the new value is invalid or out of range.

Main Settings Screen

require Reboot hence the Save & Reboot button should be used. Navigation

WEB Server

Enter desired WEB Server Port, Username and Password to be used when accessing the WEB
Server. There are 2 levels of access. Admin can access all screens and change all settings. The user
can access only the operational screens and has no access to the settings.

Network

The network addresses could be set manually (static IP) or automatically via the DHCP server.
To set static IP, MASK, GATEWAY and DNS addresses, the DHCP should be disabled. In order
for the built-in DHCP client to be activated, the function should be enabled. As a result, all network
addresses will become read-only. When the DHCP client is activated, all assigned values will be

shown in the relevant elds of the “Status Screen”. If due to any reason, the DHCP procedure

cannot be completed, DB4402 will use AutoIP and will generate an IP Address.

- 49 -

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

Audio

Specify Port for audio Streaming, Name of the stream (which is used also for email sender
name and web title) and Quality (64, 96, 128, 192 or 256 kbps). The Audio Stream could be heard
using suitable audio player (MS Media Player or Winamp) or through a WEB interface by pressing
the “Listen” button.

GSM Modem

Up to four numbers for SMS alarm notications could be set. Baud Rate is mandatory for the

proper operation of the GSM Modem.

We recommend a test SMS to be generated (via pressing the ‘Test’ button), once all needed

settings are applied. Upon success, the SMS will be delivered to all specied GSM numbers.

Example of Test SMS Message:

DB4402 Test Message

NOTE: The current condition of the GSM Modem could be checked in the “Status Screen”.

SNMP

Specify Agent ID, Agent Port, Read/Write Communities, Manager IP and Manager Port.

Agent - enables/disables SNMP Agent.

NOTE: Agent ID is used for identication of the device among others when an SNMP

notication is sent.

Once all needed settings are applied, use Test button to generate a test notication, which upon

success will be received by the SNMP Manager.

Press the ‘Download’ button to download the latest available DB4402 SNMP MIB le.

NOTE: The MIB le may vary from one rmware revision to another. Downloading this le

from the device guarantees that you have the proper MIB le.

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Presets

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Presets tab allows the frequency presets and audio stream to be congured. The FM streamer

works on a rotation principle. Each of the enabled and set channels will be included in an
uninterrupted audio stream that could be heard using suitable audio player (Media Player, Winamp,
etc.) or through the WEB interface by pressing the [Listen] button. The Audio Stream Server is
congured in Settings > Audio, “Main Settings Screen” on page 49.

NOTE that in order for a frequency to be included in the audio stream, the channel must be

enabled. If frequency, name and observation time are set, but the channel is not enabled, it will not
be included in the audio stream, but will appear in the Channel Preset Buttons, hence allowing the
frequency to be heard upon manually pressing the relevant button.

Each of the 6 channels includes the following settings:

• Enable – includes the frequency in the constantly playing/rotating audio stream;

• Frequency – specifying the frequency to be monitored/streamed;

• Name – species the name of the channel;

• Observation – sets the time duration - how long will the audio from this channel will be

heard in the audio stream.

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MANAGEMENT SCREEN

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RF Attenuator

Indicates the Antenna Input Attenuator’s setting. Attenuation level can be selected by pressing
on the preferred value. When AUTO is selected, DB4402 will adjust automatically the Attenuator’s
position.

De-emphasis

Indicates currently selected de-emphasis.

Date and Time / Internet Time

When Internet Time is enabled, DB4402 will automatically adjust its internal clock through
the Internet. When Internet Time is disabled, Date and Time should be entered manually into

corresponding elds or lled from PC Clock by pressing the ‘Get From PC’ button.

Ping Watchdog

The idea of this feature is a connection to DB4402 over the Internet to be established if the
device is connected behind a mobile router. If there is no connection with the Internet, some mobile
routers disconnect their radios and the DB4402 will become inaccessible. The Ping Watchdog will

make enough trafc for the router to stay connected to the network. Reboot is needed because

there are some routers that nevertheless the ping, will disconnect. Reconnection will be made only
if there is a disconnect and connect at the LAN port.

The Ping Watchdog will ping the specied IP address for connection status. If the remote IP
address does not respond to Ping for the specied number of times (Max Retries), the DB4402 will

power reboot. Please note that the ‘Ping Watchdog’ is disabled by default.

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Firmware Update

If needed, DB4402’s rmware could be updated. Updating the rmware will ensure:

• New function(s);

• Improved performance;

• Eliminated bugs (if any).

To update the device rmware, please follow the steps listed below:

- Press the ‘Browse’/’Choose File’ button and select the new rmware le;

- Press the “Upload” button;

- Wait for the process to complete.

NOTE: Checking for updates regularly will ensure that the device is functioning correctly, and

avoid potential problems.

Reboot Device

Pressing Reboot button will initiate a ‘hardware reset’ as if you have switched off and on the
device. The previously applied/saved settings will not be deleted.

Factory Defaults

DB4402 could be restored to Factory Defaults from its non-volatile memory. The procedure is

quite simple - Press the ‘Restore Button’ and conrm the procedure.

WARNING: Before returning DB4402 to its factory defaults, all remote users should be

informed that they may cease to communicate with the device.

Session Timeout

Set WEB and SNMP sessions timeout. PLEASE NOTE that during session, the Logger mode
is not active, thus no Alarms are generated.

SNMP MIB File

Press the ‘Download’ button to download the latest available DB4402 SNMP MIB le.

NOTE: The MIB le may vary from one rmware revision to another. Downloading this le

from the device guarantees that you have the proper MIB le.

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E-mail: of[e-mail] ,Web: www.devabroadcast.com

Tel: [phone], Fax: [phone]

External GSM Modem Settings

To fulll the Remote Monitoring Functions via GMS it is necessarily to connect an external

GSM modem to DB4402. To do this, connect the GSM Modem to the rear panel DB-15 male
connector through the cable provided together with GSM Modem. A GSM Antenna must be
supplied and connected to the connector of the GSM Modem.

IMPORTANT: Position the GSM Antenna as far as possible from the DB4402’s FM Antenna.

WARNING: Please check SIM Card PIN request to be disabled. Otherwise DB4402 can not

operate the modem.

The GSM Modem must be congured with the following settings:

Baud rate: equal to DB4402 setting (see “Main Settings Screen” on page 49)

Data bits: 8

Stop bit: 1

Parity: None

Hardware Flow Control: None

NOTE: The GSM Modems provided by DEVA Broadcast Ltd. are pre-congured. In case of

using different modems, please comply with the settings above.

To ensure proper installation of the GSM Modem, please observe the following sequence:

1. Install and connect the GSM Antenna according to the above recommendations.

2. Insert the SIM card into the holder. Card must be with deactivated PIN request.

3. Connect the GSM Modem and DB4402 with the communication cable.

4. Power-up the GSM Modem.

5. Power-up DB4402.

If the installation is proper, the GSM Modem will immediately startup. This will be noticed by
the fast blinking of the ‘GSM’ Led on the DB4402’s front panel. The status of the GSM Modem
will also be exposed on “Status Screen”. Few seconds are usually necessary for the GSM Modem
to initialize and to register into the GSM Network. When the GSM Modem is Ready the ‘GSM’
Led will start blinking slowly. The GSM Opeartor’s Logo and the Field Strength will be also
shown on the “Status Screen”.

It is important to notice the call duration, which is 1 minute, otherwise the GSM connection

may turn overused. ‘Call Duration’ denes the maximum outgoing call duration, which will be
hanged-up by DB4402 when it reaches the dened value (1 minute).

Only authorized GSM numbers can request remote notications and remote listening. To

register up to four GSM numbers use Main Settings Screen.

It is important to enter the GSM numbers properly, using the correct prex for the country. For

example: [phone]

NOTE: The GSM Modem may be connected to DB4402 without shutting down the device - so

called ‘Hot Plug’. When disconnected or powered down, the GSM Modem can be reconnected after
the ‘GSM’ Led stops blinking (about 5 seconds). To prevent possible problems, we recommend,
when possible, not to use ‘Hot Plug’.

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65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

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‘Status Request’ Command Format:

Status FFF.FF

‘Remote Audio Listening’ Command Format:

Listen FFF.FF

Where FFF.FF is the frequency to Tune in the range of 87 to 108 MHz.

For example: “Status 102.55” or “Listen 88.80”.

IMPORTANT: Do not include leading zeroes such as “Listen 089.90”. Fill in with trailing

zeroes up to two digits after the decimal symbol. Decimal symbol must be “.” (dot)

If DB4402 receives an authorized ‘Status Request’ command, after a short interval (about 5
seconds), in which DB4402 has to retune and collect summarized data, the Caller will receive a
SMS response. For Example:

STATUS:

27.09.2011 09:08:34

FREQ:102.50MHz

RF:32.7dBuV

MPX:103.2kHz

Left:-4.8dB

Right:-4.9dB

Pilot:7.5kHz

RDS:18.5kHz

‘Remote Audio Listening’ command will generate (only if the calling number is authorized)
a response call from DB4402 to the command sender. DB4402 will wait for answer, and will
hang-up after 30 seconds, if there is no incoming answer. When a call is accepted, the duration of
‘listening’ is determinate by ‘Call Duration’ interval or until the call is ended.

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Network Discovery

Network discovery is a network setting that denes whether your computer can see (nd) other

computers and devices on the network and whether other computers on the network can see your
computer. By default, Windows Firewall blocks network discovery but you can enable it.

1. Open Advanced sharing settings by clicking the Start button, and then click on “Control
Panel”. In the search box, type “network”, click “Network and Sharing Center”, and then,
in the left pane click “Change advanced sharing settings”.

2. Select your current network prole.

3. Click “Turn on network discovery”, and then click “Save changes”. If you’re prompted

for an administrator password or conrmation, type the password or provide conrmation.

4. To access the device, open a new Explorer bar and click on Network (1). If you have
successfully enabled the network discovery option, the device will be displayed. Double
click on DB4402 - FM Monitoring Tool (2) or DB4402 - FM Radio Streamer will open
a new WEB browser window requiring a username and a password.

2

1

NOTE: If you have already enabled this function on your computer just open a new Explorer

bar and click on Network (1). The device will be displayed.

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65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

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Tel: [phone], Fax: [phone]

WARRANTY TERMS AND CONDITIONS

I. TERMS OF SALE: DEVA Broadcast Ltd. products are sold with an understanding of “full
satisfaction”; that is, full credit or refund will be issued for products sold as new if returned to the
point of purchase within 30 days following their receipt, provided that they are returned complete
and in an “as received” condition.

II. CONDITIONS OF WARRANTY: The following terms apply unless amended in writing
by DEVA Broadcast Ltd.

A. The Warranty Registration Card supplied with this product must be completed and returned
to DEVA Broadcast Ltd. within 10 days of delivery.

B. This Warranty applies only to products sold “as new.” It is extended only to the original end­user and may not be transferred or assigned without prior written approval by DEVA Broadcast Ltd.

C. This Warranty does not apply to damage caused by improper mains settings and/or power
supply.

D. This Warranty does not apply to damage caused by misuse, abuse, accident or neglect. This

Warranty is voided by unauthorized attempts at repair or modication, or if the serial identication

label has been removed or altered.

III. TERMS OF WARRANTY: DEVA Broadcast Ltd. products are warranted to be free from
defects in materials and workmanship.

A. Any discrepancies noted within TWO YEARS of the date of delivery will be repaired
free of charge, or the equipment will be replaced with a new or remanufactured product at
DEVA Broadcast Ltd. option.

B. Parts and labor for factory repair required after the two-year Warranty period will be billed
at prevailing prices and rates.

IV. RETURNING GOODS FOR FACTORY REPAIR:

A. Equipment will not be accepted for Warranty or other repair without a Return Authorization

(RA) number issued by DEVA Broadcast Ltd. prior to its return. An RA number may be obtained
by calling the factory. The number should be prominently marked on the outside of the shipping
carton.

B. Equipment must be shipped prepaid to DEVA Broadcast Ltd.. Shipping charges will be
reimbursed for valid Warranty claims. Damage sustained as a result of improper packing for return
to the factory is not covered under terms of the Warranty and may occasion additional charges.

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PRODUCT REGISTRATION CARD

• All elds are required, or warranty registration is invalid and void

Your Company Name

Contact

Address Line 1

Address Line 2

City

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: [phone], Fax: [phone]

E-mail: of[e-mail] ,Web: www.devabroadcast.com

State/Province ZIP/Postal Code

Country

E-mail Phone Fax

Which DEVA Broadcast Ltd. product did you purchase?

Product Serial #

Purchase date / / Installation date / /

Your signature*

*Signing this warranty registration form you are stating that all the information provided to DEVA Broadcast Ltd. are truth and correct.
DEVA Broadcast Ltd. declines any responsibility for the provided information that could result in an immediate loss of warranty for

the above specied product(s).

Privacy statement: DEVA Broadcast Ltd. will not share the personal information you provide on this card with any other parties.

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