FM Radio Modulation Analyzer

Fully DSP-based, Professional, Intuitive

The DB3000 FM Modulation Analyzer is a digital FM demodulator and modulation analyzer. This unit is more of a full member of the class of the test equipment rather than just a monitoring receiver device.

The signal digitizing takes place at the input, processing the signal through DSP algorithms. Thus, equipment measurement reproducibility over time is guaranteed. The powerful accuracy of the digital filters ensures that the FM multiplex signal components will be accurately and repeatedly transferred from one device to another.

Having multiple parameters simultaneously displayed on the front panel LED bargraphs, it provides an excellent overview of the main signals, and the LED display allows reading at a glance of all parameters. The front panel menus and controls are very intuitive, as well. The LAN port for TCP/IP connection allows straightforward remote control and monitoring.

Fully DSP-based, Professional, Intuitive
  • Fully DSP based core
  • Bright, accurate bargraph LED metering of the Modulation and Pilot Levels
  • Total and independent Positive and Negative deviation bargraph
  • Left, Right, L+R, L-R bargraph LED audio level meters
  • Accurate "floating dot" program peak marker
  • Easy to ready LED display for selected frequency
  • Very Intuitive Navigational Menu
  • Built-in Oscilloscope allowing IF, MPX, Pilot, Subcarriers, L&R display
  • MPX Power measurement with data history
  • RF Spectrum analyzer allowing to check the RF Carrier parameters
  • MPX Spectrum analyzer for Pilot, SCA, L/R, L+R and L–R measurements
  • Direct MPX Input for external composite signal measurement
  • Selectable De-emphasis – Off, 50µs and 75µs
  • Quick Station access via 15 Presets
  • Built-in Stereo Decoder and Selectable Forced Mono mode
  • Protected access to the device settings
  • Date & Time Settings with various formats
  • Level Adjustable Balanced Analog Audio Outputs on XLR Connectors
  • Professional AES/EBU Digital audio output on XLR connector
  • LAN port for full TCP/IP remote control and monitoring
  • Headphone output with front panel level control
  • Up to 90dBµV direct RF Antenna Input
  • Adjustable alarms for Multipath, Deviation, Pilot, Subcarriers, Audio Loss
  • USB, and RS232 communication interfaces
  • Alarm tally outputs for remote fault indicators
  • Easy and intuitive Windows Application
  • Firmware update for future-proof operation
  • Parameters Factory Restore option
  • Operating voltage range 110-120V or 220-250V AC
  • 19" Professional Case for high RF immunity

The DB3000 FM Modulation Analyzer is a digital FM demodulator and modulation analyzer. The RF (IF) and MPX signal is digitalized as soon as it enters the device, and all signal processing is then made through calculations. The signal being digitalized at the input, the equipment acquires measurement reproducibility over time. Digital filters’ 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. the same signal applied to two devices would give the same result. The processing power of this equipment enables all measurements to be refreshed simultaneously and synchronously, thereby allowing for detailed readings of all the Multiplex FM signal components.

DB3000 incorporates easy to read, high-resolution bargraph displays that allow reading the main signal parameters at a glance. The built-in DB3000 Oscilloscope represents the observed signal change over time, and enables you to visualize the most important signal components involved in the process of demodulating and stereo decoding. The Spectrum analyzer likewise the Oscilloscope mode, is a mode for spectral analysis of the input signal and part of DB3000 features. The Spectral components of the selected signal are determined on the basis of Fast Fourier Transform. MPX Power measurement, supporting measurement history data is yet another DB3000’s impressive feature. Additionally to the list of DB3000's features, RDS information that is contained in the processed MPX signal is easily visualized and represented as RDS/RBDS Data and RDS/RBDS Statistics.

Adjustable Alarm settings enable Alarm Signal for the most important signals and signal components and parameters to be generated and fed to the Rear Panel Alarm Terminal for remote alarm notification. DB3000 is designed to support RS232, USB and LAN communication interfaces, allowing flexibility in remote connection and control of the unit. Dependable off-air monitoring enables you to keep an eye on other stations in the market as well as measuring the important parameters of your own signal.

RF Input
Frequency Range88 to 108 MHz, Frequency Agile, 100 kHz Increments
Antenna Input30 dBµV sensitivity, 50 Ω , BNC Connector
Internal attenuator0, 10, 20 and 30 dB
Dynamic range0 dBµV to 100 dBµV
MPX Input
Frequency Range10 Hz to 200 kHz, 1 BNC Connector
Impedance10 kΩ
Sensitivity3.5 Vp-p @ 75kHz
FM Demod
Frequency Response±0.1 dB, 10 Hz to 96 kHz
SCA filter38 kHz and 57 kHz selectable
MPX power±12 dBr, 20 sec. integration
Stereo Decoder
Frequency Response (L and R)±0.1 dB, 10 Hz to 15 kHz
SNR (Stereo)80 dB, 50 µs de-emphasis
Distortion0.02%, 10 Hz to 15 kHz, 50 µs de-emphasis
L to R, R to L50 dB, 50 Hz to 10 kHz, 50 µs de-emphasis
L+R to L-R55 dB min
L-R to L+R55 dB min
FFT Spectrum Analysis (RF, Composite, Audio)
Display ModesRealtime, Average, Min Hold, Max Hold
Dynamic range90 dB
FFT length2048
Sampling rate572 kHz - IF, 192 kHz - Composite, 48 kHz - Audio
Scope Analysis (RF, Composite, Audio)
Display ModesRealtime, Average, Min Hold, Max Hold
Trigger modeRise, Fall, Off
Dynamic range90 dB
Sampling rate572 kHz - IF, 192 kHz - Composite, 48 kHz - Audio
Metering Accuracy
RF Level±1 dB, 10 to 90 dBµV
MPX Power±0.2 dBr, -12 to 12 dBr, 0.1 dBr resolution
Total, Pos, Neg±2 kHz, 10 to 100 kHz, 1 kHz resolution
Pilot±0.5 kHz, 1 to 12 kHz, 0.2 kHz resolution
SCA±0.5 kHz, 1 to 6.5 kHz, 0.2 kHz resolution
L, R, L+R, L-R±1 dB, +10.0 to -70.0 dB, 0.1 dB resolution
Composite3.5 Vp-p @ 75kHz, 75 Ω, unbalanced BNC Connector
Audio (L, R)+6 dBm, 600 Ω, balanced XLR Connector
AES3 (L, R)5.0 Vp-p, 110 Ω, balanced XLR Connector
Alarmsdedicated terminals on rear panel, optoisolated
Headphone1/4” Phone Jack
Computer Interface
RS-2329-pin Male D-Sub Connector
USBB-type Connector
Ethernet 10/100 Base–TRJ-45 Connector
Power Requirements
Power Supply40 Watts, 115/230V, 50/60 Hz
Size and Weight
Dimensions (W;H;D)482 x 89 x 300 mm
Shipping Weight540 x 157 x 430 mm / 7.400 kg
HS Code8527212000