Deva DB4000-FM Radio Monitoring Receiver

DB4000 is the most cost effective unit for permanent monitoring of the quality and continuity of up to 50 FM Radio Stations with innovative features such as TCP/IP connectivity, audio streaming and automatic alerts on out of predefined ranges in regards with the ITU-R. In case of any faults in the transmission the maintenance staff will be immediately alerted via E-mail or SMS which allows to the technicians to restore a normal service as soon as possible. This tool enhances the radio stations' quality control management.

 

DB4000 allows you through its TCP/IP and GSM (optional external GSM Modem) Connectivity to monitor all the RDS/RBDS 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 external Audio Stream Server option you can even listen to, skim and record the audio from any station.

 

DB4000 enables you to monitor your own frequency continuously and at the same time to be informed about your neighbouring stations. The included PC software 'DB4000 Device Manager' allows you to control unlimited number of field installed units, to observe from the monitoring sites all the parameters and measurement values of your network. 'DB4000 Device Manager' is a total control solution for remote monitoring networks. The map interface enables getting immediate and clear view of the monitoring location or to the whole network. Due to the universal cartographic interface any kind of maps can be used. Using the map interface the user is allowed, by a flashing red light, to see quickly which site has an alarm on it. He can access the equipment and the alarm directly from this map just with a click on the desired location.

 

 

 

 

Frequency range 87.0 to 108.0 MHz

Step increment 50 KHz

RDS sensitivity 0 error at Vrf=-90dBµV, 4KHz RDS deviation, no modulation

RF level evaluation ± 4dB from 20°C to 30°C, 20 to 60dBµV without modulation

S/N 60dB

Dynamic 0 to 90dBµV

20 dBµV (-87 dBm) for monaural

43.5 dBµV (-63.5 dBm) for stereo

 

 

Measurement validity RF level preferably > 50dBµV

Multiplex level Peak level displayed, 1000 samples over 1 second

Audio level Peak level displayed, 1000 samples over 1 second

Pilot level Mean peak level, 1000 samples over 1 second

RDS level Mean peak level, 1000 samples over 1 second

 

 

MPX Deviation ± 10%, ± 5% typically

Audio Level ± 5%

Sub-Carrier Level ± 10% typical and not guaranteed

 

 

Connector 'BNC' on rear panel

Impedance 50 Ω

External Attenuator No

 

 

Stereo Separation >40dB

De-emphasis 50 or 75µs, Selectable

Audio Frequency Response ±0.5dB, 20 Hz to 15 kHz; follows selected de-emphasis curve

Typical Separation approximately 26dB to 35dB

 

 

Standards European RDS CENELEC;

United States RBDS NRSC

Error Correction Yes

Error 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

 

 

Storage 2GB Built in Memory Card

Data formats Textual and proprietary

 

 

Indicators 4 LEDs and Navigation Buttons (on front panel)

Headphone output 1/8" (3.5mm) phone jack (on rear panel)

Display Superb 2x40 characters, LCD

 

 

Equipment operational between 10° to 60°C

EMC immunity 6V/m

 

 

Connector Stereo, 1/8" (3.5mm) phone jack

Volume Fixed

 

 

Type RJ45 Ethernet 10/100M Base-T Port

Connector RJ45, rear panel

 

 

Power supply 110/220 V (internal switch)

Connector IEC320, rear panel

 

 

Dimensions (W x H x D) 19" x 1.7" x 6.9"

Weight 8 lbs