Inovonics 673 INOmini FM/RDS Monitor/Receiver

The Inovonics 673 INOmini FM/RDS Monitor/Receiver is a compact, professional FM broadcast receiver designed for continuous off-air monitoring and signal verification. Ideal for broadcasters, engineers, and regulatory authorities, it ensures reliable reception of FM and RDS data with clear audio monitoring, accurate signal metrics, and simple remote management.

Part of the trusted INOmini series, the 673 delivers full FM and RDS decoding in a 1/3-rack width chassis. It’s perfect for use at transmitter sites, rebroadcast facilities, or studios needing real-time FM signal confidence. Rugged, space-saving, and cost-effective, it’s the ideal companion for professional FM broadcast monitoring applications.

Key Features

• Professional FM and RDS monitoring receiver

• Compact 1/3-rack width design, ideal for tight spaces

• Displays RDS data including PS, PI, PTY, and RadioText

• Built-in alarms for carrier loss and audio silence

• Analog and AES3 digital audio outputs

• Web-based control and configuration via Ethernet

• Optional rack kit allows up to three INOmini units in 1U

Technical Specifications

• Reception: FM 87.5–108 MHz

• De-emphasis: 50 µs/75 µs, user selectable

• Outputs: Balanced analog and AES3 digital

• RDS Data: Full decoding and display of service data

• Audio Response: ±0.2 dB, 30 Hz–15 kHz

• Signal-to-Noise Ratio: >70 dB typical

• Alarm Outputs: GPI contact closures for carrier or audio loss

• Power: 90–240 VAC, 50/60 Hz universal supply

• Mounting: 1/3-rack width chassis (three units fit 1U)

• Dimensions: 4.6 × 8.5 × 1.7 in (117 × 216 × 44 mm)

Comparison with Other INOmini FM Models

• INOmini 673: FM/RDS monitoring with web-based control and alarms.

• INOmini 514: FM multiplex decoder for signal analysis.

• INOmini 650: FM rebroadcast receiver with full program relay capability.