Overview
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Audemat FM/HD Probe Advanced FM & HD Radio Monitoring Solution
Building on the proven FM Probe platform, the Audemat FM/HD Probe delivers reliable, advanced monitoring for HD Radio broadcasts, ensuring compliance, quality, and operational peace of mind. The Audemat FM/HD Probe offers outstanding capabilities that simplify HD Radio monitoring while preserving full FM and RDS monitoring capabilities. It includes advanced decoding, RDS analysis, FM signal measurements, and real-time streaming and recording, ensuring engineers can verify and troubleshoot remotely while maintaining complete oversight of their broadcast signals. This robust, compact device is designed for demanding environments, providing intuitive remote access, advanced alarm management, and deep signal analytics to help broadcasters meet regulatory requirements and deliver the best quality of service to their audience.
Features
- Simultaneous HD1, HD2, HD3, FM and RDS monitoring
- Real-time audio streaming, recording, and analysis
- NRSC mask and FM spectrum monitoring
- Advanced alarm management and SNMP notifications
- Compact, robust design for studio or transmitter site deployment
- Scalable monitoring and round-robin options for HD channels

In Depth
Continuous FM/HD Radio Broadcast Monitoring: The fast FM band scanning allows visualizing the entire FM spectrum and identifies the channels you may like to monitor. 24/7 scan monitoring is also available and can inform you in case of missing or unauthorized FM stations.

Advanced FM/RDS Data Analysis and Verification: Engineers can perform deep RDS decoding and FM signal analysis to ensure metadata, such as station IDs, song titles, and service information, are transmitted correctly. This helps maintain a professional image and a seamless listener experience.

Audio Quality and Signal Alignment Monitoring: The unit measures and compares audio levels, timing, and phase between analog FM and HD signals. This ensures that digital and analog broadcasts are synchronized, preventing jarring differences in audio quality or delay when listeners switch between them.

Regulatory Compliance and NRSC Mask Checks: The device automatically compares your on-air FM spectrum to an NRSC mask to verify compliance with broadcasting regulations. This allows you to easily demonstrate conformity to local and national authorities and avoid penalties.

Specifications / Documents
- RF Receiver: 1 RF receiver for FM, HD, and RDS monitoring
- HD Decoding: HD1, HD2, HD3 decoding & monitoring
- FM/RDS Monitoring: Full FM signal analysis with complete RDS decoding
- HD Channel Capacity: Up to 3 HD channels simultaneously, scalable to 8 channels (evaluation phase)
- Audio Monitoring: Real-time listening, recording, round-robin monitoring
- Data Monitoring: PSD, RDS, service detection, stream mode monitoring
- NRSC Mask Monitoring: Integrated FM spectrum analysis with NRSC mask comparison
- Signal Quality: CNR/SNR monitoring, FM deviation and pilot measurements
- HD Alignment: HD/FM alignment, delay and phase monitoring
- Streaming: Remote audio streaming (FM, HD, RDS)
- Recording: On-demand or alarm-triggered recording
- Library Dependencies: Based on decoding library capabilities
- Platform: Built on the FM Probe hardware platform
- Control: Web interface, SNMP, telemetry, alarms
Hardware
- Dimensions: 483mm (19”) x 42mm (1U) x 180mm
- Weight: 2.35 kg
- Power Supply: 100-240VAC / 50-60 Hz, 25 VA
- Operating Temperature: 0°C to +50°C
- Storage Temperature: -30°C to +80°C
- Humidity: 10-95% non-condensing
- Interfaces:
- 2 LAN ports (RJ45)
- 2 XLR analog audio outputs
- 1 XLR AES output
- headphone output
- 8 relay outputs
- 16 digital inputs
- 4 metering inputs
- µSD card slot
- USB ports
- OLED screen
- RF Inputs: BNC type for FM, HD, and RDS monitoring
