HD Radio™ SiteStreamer+™

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The SOFIA 568 provides analog, AES3-digital and AoIP-streaming audio outputs. It collects histograms of signal parameters and displays HD Radio™ album artwork, station logos and similar visuals via the Web interface.

Multiple stations can be sequentially monitored using the programmable StationRotation™ feature. The SOFIA 568 includes a built-in BandScanner™, a real-time clock and full SNMP functionality.

The elite SiteStreamer+™ (‘Plus’) series offers advanced features for the most critical monitoring situations.

SiteStreamers™ also deliver important RF and audio signal measurements and dispatch email or text-message alarms for out-of-limits conditions and other reception errors.

"We love it and so do our clients! The SOFIA 568 builds on top of what the Inovonics 638 FM/HD SiteStreamer already offers. With an upgraded web interface, rich station logo and artist experience feature set, extra quality metrics or support for multi-user streaming, audio output options, the new features are accurate, rock-solid, fully controllable via SNMP and dependable."

- Eric Juteau, Engineer. Octave Communications


  • Install the SiteStreamer within the reception contour of your station and monitor off-air analog FM or HD Radio signals (HD1-HD8) via the Web from anywhere in the world.

  • The built-in BandScanner displays a spectrum plot of the entire FM band (or a user-selected portion) and identifies HD Radio transmissions.

  • Gives local and remote readout of all pertinent FM/RDS and HD/PAD data.

  • Easy front-panel setup uses jog-wheel menu navigation and the front-panel readout. The corresponding Web interface offers a detailed presentation and additional options.

  • Stays on-channel and on-mode through signal and power loss; does not auto-blend between FM and HD like a consumer radio.

  • Front-panel alarms and/or rear-panel ‘tallies’ indicate Audio Loss, Low Signal, RDS Errors and HD Reception Loss.

  • ‘Split Mode’ audio monitoring aids transmission diversity delay setup.

  • When issued, free firmware updates are easily installed in the field or remotely through the Web interface.

  • The half-rack package features an OLED hi-res graphic display, wide-range LED level meters and individual alarm LEDs with rear-panel tallies.

  • Real-Time Clock has battery backup.

  • SNMP utility is fully supported.

  • GPOs may be user-assigned to specific alarm functions.

  • Fulltime off-air program audio is available simultaneously as L/R-analog, AES3-digital and Dante®-based AES67 AoIP streaming, all with adjustable levels, plus a multi-listener Internet IP stream and front-panel headphone jack.

  • The SOFIA 568 Internet-listening stream supports up to 10 listeners at once.

  • Enhanced alarm logging includes the duration of each alarm, and there is virtually no limit to the number of alarms that can be logged.

  • Download a complete log randomly, or automatically daily, weekly or monthly.

  Online Demo Available


SOFIA Family: Inovonics’ expansive offering of remote equipment allows users to tap into broadcasts through an easy-to-use remote web interface AM | FM | HD | DAB | DAB+, allowing your staff to social distance from any location.

- David Rusch - Audio Broadcast Canada Broadcast Dialogue - Inovonics Advances Professional Remote Monitoring

RADIO WORLD - User Report: Inovonics Provides FM-HD Radio Toolbox. Sofia 568 offers useful monitoring features including Artist Experience data. "It is a veritable toolbox for FM/HD Radio broadcasters to make sure that what you’re intending to put on the air is exactly what’s going on the air."

- Brian Gullickson, Chief Engineer - KTIS(AM/FM), KDNW(FM), KDNI(FM) and KRFG(FM). User Report: Inovonics Provides FM-HD Radio Toolbox

Truly excellent piece of kit, just what we needed to shore up a hole in our monitoring and alerting. Sounds stellar, perfect for A/B tuning of our audio processing.

- Alexander Audritsh, WDNA - Miami, FL Serious Jazz - Miami


Tuning Range

87.5MHz to 107.9MHz in 100kHz steps.

Antenna Input

75Ω (BNC).


10dBµV required for 50dB mono-FM S/N.

Audio Response

  • FM: ±1dB, 30Hz – 15kHz; de-emphasis is programmable at 75µs or 50µs or OFF.
  • HD Radio™: ±0.25dB, 20Hz – 20kHz.

Reception Modes

  • FM: Stereo / Stereo Auto-Blend / Forced-Mono.
  • HD Radio™: HD1 through HD8; ‘Split Mode’ delivers L+R FM to the left audio channel and L+R HD1 to the right.

RDS Fields Displayed

PS, PI (and call), RT, RT+1, RT+2, PTY, PTYN, C/T, M/S, DI, TP, TA; RDS Block Error Rate, Groups Transmitted (with use statistics), AF, ODA.

HD PAD Data Displayed

  • SIS: Short Name, Universal Name, Station ID, Slogan, Message, Station Location.
  • Misc: Service Mode, Codec Mode, TX Gain, TX Blend Control.
  • PSD (HD1-HD8, each): Slogan, PTY, Artist, Title, Album; Logo and/or Artist Experience graphics.

Graphs and Metering

L, R, L+R and L–R Program Audio; Audio Histogram; RSSI, RF SNR, HD Level and Cd/No levels and histograms.

Program Audio Outputs:

  • Balanced Analog (XLR) Left and Right outputs are adjustable from –15dBu to +15dBu in 0.1dB steps.
  • AES Digital (XLR) output at 44.1kHz or 48kHz is adjustable from –30dBFS to 0dBFS in 0.1dB steps.
  • Headphone Jack (3.5mm TRS) has adjustable listening level.

Streaming Audio

MP3 or OGG (selectable) streams have bitrates from 32kbps to 256kbps and sampling rates from 16kHz to 48kHz.


  • Audio Loss: Alarm responds to the monitored service (FM or HD Radio). Alarm On/Off thresholds and Time On/Off intervals are programmable.
  • Low Signal: Alarm and reset trigger levels are independently adjustable relative to the FM carrier level display and have programmable Time On/Off timings.
  • RDS Alarm: Programmable Time On/Off for RDS Loss or PI Error.
  • Pilot Loss: Programmable Time On/Off for loss of Stereo Pilot.
  • HD Loss: Fixed metrics determine loss of HD Radio reception; programmable Time On/Off.
  • Email Alerts: Email or SMS/text-messaging can alert selected personnel to specific alarms.
  • Alarm ‘Tallies’: Individual open-collector NPN transistor outputs to ground are programmable for logic polarity and GPO assignment.

Real-Time Clock

Auto-sets to Internet time; auto/manual DST setting, battery backup.

AoIP Port

Dante®-based, AES67-compatible (selectable) AoIP utility has independent IP, Audio Format and Transmit Flow settings.

LAN Port

LAN connection to local network or Internet provides remote monitoring (listening and SOFIA 568 control); user-program­mable network setup and streaming parameters.

Power Requirement

12VDC at 450mA; a universal 90-240VAC inline switching power supply is included with the SOFIA 568 SiteStreamer.

Mounting Options

An optional rack adapter mounts one or two half-rack modules in a 1U, 19-inch rack space.

Size and Weight

1.6”H x 8”W x 6”D; 5 lbs. shipping weight.


Continuous operation at ambient temperatures between 32ºF/0ºC and 122ºF/50ºC; 0-95% relative humidity, non-condensing, altitudes to 10,000ft/3,048m.