Application scenarios

  • Scenario I: Copyright protection monitoring
  • Scenario II: Advertisement and music monitoring and tracking
  • Scenario III: Radioplayer (entire FM and DAB+ retransmission in Internet or LAN)
  • Scenario IV: Technical monitoring
  • Scenario V: Hybrid broadcasting support
  • Scenario VI: New advertising forms; interactive advertisement incl. Google Analytics integration
  • Scenario VII: Live channel detection and synchronisation (second screen)
  • Scenario VIII: Remote regional partner controlling (e.g. control of regional programm insertions)

Why Broadcast Radio Monitoring is necessary?

  • Web-streaming and broadcast content could be different, e.g. server-side Ad serving by Internet streaming
  • Local and regional stations or regional content inserts may not be online.
  • Controlling and access to the broadcast signals of regional partners
  • Regional restrictions for the content access via Internet
  • Significant audio delays on the web-streams ->not acceptable for hybrid radio or channel detection and synchronisation
  • Different standards and protocols for content access
  • Law-requirements: monitoring should be on the broadcast audio and not on the internet streams
  • Broadcast monitoring system cannot be easily blocked or manipulated
  • Innovative radio advertisement forms using the second screen
  • Access to the broadcasting meta-data, e.g. RDS

Our Solution

Scalable multichannel hardware and software platform for remote broadcasting monitoring of FM broadcast radio stations (87.5…108 MHz band) and DAB+ radio stations (174…240 MHz band) incl. capturing, transcoding and streaming of audio signals and accompanying metadata. The platform can also be configured to support AM, DRM, DRM+, HD, SDR or Microphone Arrays.

Technical Characteristics

Item Value
FM operating frequency range, MHz 76…108
DAB+ operating frequency range, MHz 168…240
Active Splitter
  • Frequency range: 50…1000MHz;
  • Noise N=2.8dB,
  • Gain G>10dB;
  • 75 Ohm input and output impedance;
  • Voltage supply: +5V;
  • Current supply: 250mA;
  • Number of channels: 8;
  • Expansion to 16 channels;
  • Input Connector: F-female;
  • Expansion Connector: SMA-female;
  • Output Connectors: UMCC
Sensitivity of the receiving part, mV 70
Minimum number of simultaneously received FM / DAB+ channels 8
Maximum number of simultaneously received FM / DAB+ channels 62 or 93 (>93 on request)
Decoding related digital data (Program Associated Data (PAD)) RDS, RBDS, MOT
Measuring ratio, SNR Yes
Input level measurement, RSSI Yes
Audio content encoding bit depth 16
Modes of one audio channel operation Stereo or Mono
Coding rate, kHz 48
Audio stream compression formats (software) MP3, AAC
Audio stream bitrate, kbps (software setting) 64, 128, 256, VBR
Power supply 220V 50 Hz
Power consumption, W 120
Network Ethernet 100 / 1000
Number of Ethernet ports, 100/1000Base-TX 1
Antenna type F-type
Antenna inputs 1
Power connectors 1
Enclosure dimensions, mm 421х330х44
Weight, kg 4,2
OS Linux
REST API Support Yes
Embedded Web Server (open source) Yes
Embedded Streaming Server (open source) Yes
ROOT Access Yes

Functions of integrated Mini-PC

  • Power management via GPIO interfaces
  • Tuner management and tuner configuration
  • Receive digital audio signals via USB3.0 interface
  • Processing and compression of digital audio signals
  • Transmission of digital audio signals through a local network or remotely via Internet
  • Processing and transmission of accompanying digital data, e.g. RDS (Radio Data System), MOT (Multimedia Object Transfer including Slide Show) signals
  • Control and retrieval of data from a single-channel SDR module
  • Low-level REST API
  • ZeroMQ support (optional)

Successfully tested with Stirlitz Media Logger

62 FM and DAB+ channels in parallel

Integrated SDR Receiver

  • Frequency range: 42…1002MHz;
  • Sensitivity: -97,5dBm (3,5uV);
  • Noise figure: 3.5dB;
  • Mirror channel suppression: 65dB;
  • Input resistance: 75 Ohm;
  • Interface: USB2.0.

Additional Functions

  • Calculation of SNR
  • Calculation of RSSI
  • FFT generation (spectral panorama of received signals) in the working frequency range, 65-240 MHz
  • Acoustic fingerprint generation (on request)


Contact us with any question
We’d love to help!