655 AARON FM/HD Rebroadcast Receiver

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The AARON 655 employs a sensitive FM / HD Radio™ SDR-based receiver that invariably returns to the programmed frequency and reception mode following a power interruption. In addition to FM and HD1-8 program sources for rebroadcast, the 655 accepts analog, AES-digital and streaming program inputs with fallback-priority selection. Outputs are FM-stereo-multiplex (MPX) as well as both analog and AES digital program line outputs and output streaming.

The AARON 655 includes an onboard RDS encoder that can either pass or regenerate incoming RDS, and can also reformat HD Radio™ ‘PAD’ data for RDS retransmission.

The 655´s audio processor employs a parametric equalizer offering continuous control over the audio signal’s frequency content with 3 bands of dynamic compression and selectable crossovers. Audio processing includes gated and ‘windowed’ AGC, a unique ‘syllabic’ leveler, with both wideband and independent HF limiting.

IP connectivity with a Web-browser interface permits total remote control of the unit from any Web enabled device, along with remote audio monitoring. Local GPIO failure alarms are augmented with email notifications, alarm logs, and full support for SNMP operation.


  • Uncompromising DSP-based (SDR) receiver performance
  • Accepts program audio from analog FM, digital HD1 through HD8 programs, streaming sources and analog or AES-digital line inputs, all with assignable failover audio backup
  • Audio processing with AGC, parametric EQ, bass ‘punch’ enhancement, multiband compression, independent broadband / HF peak control and composite clipping
  • A regenerated and peak-controlled composite/MPX output, plus balanced analog and AES-digital program line outputs for exciters with built-in stereo generators
  • An internal RDS/RBDS encoder that can customize incoming off-air RDS data, convert HD Radio™ PAD to RDS, convert streamed metadata to RDS, or receive IP Telnet data
  • An intuitive remote-control Web Interface with remote audio monitoring; self-logging reception alarms give instant email and text notification
  • SNMP remote monitoring and control of all AARON 655 functions
  • A built-in BandScanner™ for a snapshot of the local RF spectrum

Download the datasheet here.

Not sure if you should buy the Aaron 640, 650 or 655? Compare the series here.

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