DEVA DB44 User manual

MAINTENANCE AND OPERATION
INSTRUCTION MANUAL
Publish Date: 12-Nov-2012
DB44
Compact FM Radio Monitoring Receiver
and Basic Modulation Analyzer

Contents
Introduction........................................................................................................................................4
General Information..........................................................................................................................5
Product Features................................................................................................................................6
Technical Specications ..................................................................................................................7
Block Diagram ................................................................................................................................9
Factory Default Settings..................................................................................................................10
Network Settings............................................................................................................................10
WEB Server ...................................................................................................................................10
E-mail............................................................................................................................................10
Audio .............................................................................................................................................10
GSM MODEM...............................................................................................................................10
SNMP Settings............................................................................................................................... 11
Management Settings .................................................................................................................... 11
Channel Presets Default Settings..................................................................................................12
Safety Precautions............................................................................................................................13
Panel Indicators and Appointments...............................................................................................14
Front View .....................................................................................................................................14
Rear View ......................................................................................................................................15
Getting Started ................................................................................................................................16
Connection ....................................................................................................................................16
Network Settings............................................................................................................................17
Login .............................................................................................................................................18
Operation..........................................................................................................................................19
Tuner Screen..................................................................................................................................19
Main Screen...................................................................................................................................20
RDS Screen....................................................................................................................................21
ODA Screen...................................................................................................................................22
FM Graph Screen..........................................................................................................................23
MPX Screen...................................................................................................................................24
Spectrum Analyzer Screen.............................................................................................................25
Scope Screen..................................................................................................................................26
Bandscan Screen ...........................................................................................................................27
Status Screen .................................................................................................................................28
LOG Screen ...................................................................................................................................29
Settings Screen ..............................................................................................................................30
Main Settings Screen ................................................................................................................30
Channel Settings Screen ...........................................................................................................32
Alarm Triggers Dened.................................................................................................................34
Alarm Notications .......................................................................................................................36
Management Screen ......................................................................................................................37
External GSM Modem Settings .....................................................................................................39
UPnP and DB44 discovery in Local Networks..............................................................................41
UPnPActivation...............................................................................................................................42
WARRANTY TERMS AND CONDITIONS.................................................................................43
Product Registration Card..............................................................................................................44

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65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 4 -
Introduction
DEVA Broadcast Ltd. was established in 1997 as a broadcasting and telecommunications
equipment importer for Bulgaria and Eastern Europe regions. Subsequently, DEVABroadcast Ltd.
hasdeveloped andproduced awiderange oflow and midpower transmitters,RDS/RBDS Encoders
and Decoders, Modulation Monitors, Remote Controls, Site monitoring and other systems for
many companies. Our high degree engineers accomplish their bright ideas through successful
engineering, marketing and management in DEVA Broadcast Ltd.’s Headquarter in Bulgaria.
During the last ten years the company products have become our partners’ best sellers. After
detailed marketing analysis, our team has decided to launch its own brand products based on the
latest technologies in the broadcasting business. The company’s main goal is to design, develop
and offer a complete line of high quality and competitive products for FM and Digital Radio,
Radio Networks, Telecommunication Operators and regulation authorities. We base our market
authority position on our good after sales support and relation with the clients.
Since 2003 DEVA Broadcast Ltd. has been ISO 9001 certied .
The contractors of DEVA Broadcast Ltd. are satised with the permanent business comfort
and to their own confession they owe it to a great extent as well as their prosperity to the loyal
partnership of our company.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 5 -
General Information
Compact, Robust, Reliable and Clever - This is just a small part of all the benets of our DB44
FM Radio Monitoring Receiver and Basic Modulation Analyzer. Based on the latest technology,
the DB44 core is DSP based digital design for 24/7/365 operation.
After demodulating the FM signal, the MPX signal is digitalized and all signal processing
is then made through calculations. Digitizing in this way, at the input gives the equipment
measurement reproducibility over time. Digital lters’ accuracy, used in this equipment, enables
the FM multiplex signal’s components to be accurately and repeatedly reproduced from one device
to another, i.e. same signal applied to two devices will give the same result. The processing power
in this equipment enables all measurements to be refreshed simultaneously and synchronously,
thereby allowing for detailed readings of all the Multiplex FM signal components.
DB44 allows you through its TCP/IP and GSM Connectivity to monitor all the RDS and some
other signal parameters from anywhere. You can easily receive the channel status or listen to the
audio from anywhere, using your mobile phone. With the built-in Audio Streamer you can even
listen to, skim and record the audio from any station. DB44 is our most cost effective unit for
permanent monitoring of the quality and continuity FM Radio Stations or Radio Networks.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 6 -
Product Features
• Fully DSP based core
• Built-in Oscilloscope allowing Left, Right and MPX display
• MPX Power measurement with data history
• MPX Spectrum analyzer for Left, Right and MPX measurements
• Scope with Cloud Lissajous and Star Stereo Signal Representation
• Selectable De-emphasis – 50µs and 75µs
• Built-in Stereo Decoder; Stereo Presence Detection
• Date & Time Settings for manual or automatic synchronization
• LAN port for full TCP/IP remote control and monitoring
• SNMP remote monitoring and conguration
• Up to 90dBµV direct RFAntenna Input
• Adjustable alarms for RF, Deviation, Audio, Pilot, RDS Signal and RGS Groups
• 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
• 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
• Dual level access - Administrator and User accounts
• 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

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 7 -
TECHNICAL SPECIFICATIONS
RF INPUT
Frequency Range 87.0 to 108.0 MHz, Frequency Agile
Step Increment 50 kHz
Antenna Input 50Ω, 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 SMS, E-mail, SNMP
Headphone 1/8” (3.5mm) Phone Jack
GSM Modem 15-pin Male D-Sub Connector

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 8 -
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
PIN Yes
RT+ Yes
TMC 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 3 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 REQUIREMENTS
Power Supply External, 12V/1A
SIZE AND WEIGHT
Dimensions (W x H x D) (125 x 31 x 160mm), (5” x 1.2” x 6.3”)
Shipping Weight 1,5 kg

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 9 -
BLOCK DIAGRAM
A simplied block diagram of DB44 is shown below
Because of the all-digital, minimalist-discrete-component nature of device circuitry, we have
not provided schematic diagrams of the DB44 in this Manual. Please, note that:
NO USER-SERVICEABLE COMPONENTS INSIDE.
REFER ALL SERVICING TO
QUALIFIED TECHNICAL PERSONNEL.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: [phone], Fax: [phone]
E-mail: of[email protected] ,Web: www.devabroadcast.com
- 10 -
Factory Default Settings
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
Admin Username user
Password pass
User Username user
Password pass
E-MAIL
E-mail 1 blank
E-mail 2 blank
Sender blank
Server blank
Port 25
AUDIO
Stream Port 5000
Name DB44 - FM Radio Monitoring Tool
Quality 128 kbps
GSM MODEM
Number 1 blank
Number 2 blank
Number 3 blank
Number 4 blank
Baudrate 9600