DB4402

High-Performance Dual FM Monitoring Receiver & Radio Streamer

Logger capability and simultaneous audio streaming in one innovative tool

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.

The DB4402 is fully DSP-based, with a built-in oscilloscope and an RDS/RBDS decoder with a BER meter. Users can set alarms for RF, MPX, Pilot and RDS signal via email, SMS or SNMP. The DB4402 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.

Logger capability and simultaneous audio streaming in one innovative tool
  • 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

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 firmware. 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.

RF INPUT
Frequency Range87.0 to 108 MHz, Frequency Agile
Step Increment50 kHz
Antenna Input50 Ω, BNC Connector, 10 dBµV sensitivity
Internal Attenuator0, 10, 20 and 30dB, auto
Dynamic Range0 dBµV to 100 dBµV
S/N57dB, RF > 60dBµV, 30dB, RF > 10dBµV
METERING RESOLUTION & ACCURACY
RF Level0 to 95 dBµV; resolution - 0.1 dBµV; accuracy - ±1 dB (10 to 85 dBµV)
Multipath0 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 Level0 to 12 kHz; resolution - 0.1 kHz; accuracy - ±0.5 kHz, 1 to 12 kHz
RDS Level0 to 9 kHz; resolution - 0.1 kHz; accuracy - ±10% typical and not guaranteed
Audio, MPX, Pilot, RDS levels
ValidityRF level preferably > 50dBµV
Multiplex LevelPeak level, 256 ksamples over 1 sec.
Audio LevelPeak level, 64 ksamples over 1 sec.
Pilot LevelMean peak level, 256 ksamples over 1 sec.
RDS LevelMean peak level, 256 ksamples over 1 sec.
STEREO DECODER
Stereo Separation>25dB, typical >30dB
De-emphasis50 or 75µs, Selectable
THD0.5%
OUTPUTS
Audio streamIcecast/Shoutcast compatible audio stream
AlarmsE-mail, SMS, SNMP
Headphone1/8" (3.5mm) Phone Jack
GSM Modem15-pin Male D-Sub Connector
RDS DATA DECODING
StandardsEuropean RDS CENELEC; United States RBDS NRSC
Error Correction & CountingYes
AF DecodingYes
CT (Time/Date)Yes
PI, PTY, DI, MSYes
TA/TPYes
RT (Radio Text)Yes
PS (Program Service name)Yes
FFT SPECTRUM ANALYSIS
InputComposite MPX, Audio
Dynamic Range80 dB
FFT Length1024
Sampling Rate256 kHz - Composite, 64 kHz - Audio
SCOPE ANALYSIS
InputComposite MPX, Audio
Trigger ModeAuto, Fall
Dynamic Range±120 kHz
Sampling Rate256 kHz - Composite, 64 kHz - Audio
USER INTERFACE
Web interfaceFull monitoring and control; Interactive and easy to use
Indicators6 LEDs (on front panel)
Headphone Output1/8" (3.5mm) phone jack (on front panel)
TCP/IP COMMUNICATION
TypeEthernet 10/100M Base-T Port
ConnectorRJ45 (on rear panel)
OPERATING CONDITIONS
Temperature10° to 60°C
EMC Immunity6V/m
POWER SUPPLY
Voltage100-240V / 50-60 Hz / 25W
ConnectorIEC320
SIZE AND WEIGHT
Dimensions (W;H;D)485 x 44 x 300 mm
Shipping Weight540 x 115 x 300 mm / 4.5kg

DB4402 Demo Devices

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