Inovonics JUSTIN 808

The Inovonics JUSTIN 808 is an HD Radio™ Alignment Processor designed to maintain precise time alignment between analog FM and HD1 channels, ensuring optimal audio quality without interruptions or discrepancies. Here’s a breakdown of its features and specifications:

Features:

1. Time Alignment:
   • Maintains time alignment between analog FM and HD1 channels to within 23 microseconds (±1 sample).
   • Adjustments are made only to the HD1 channel, leaving the FM transmission untouched.
2. Automatic Corrections:
   • Automatic phase correction and RMS gain leveling to prevent issues like lost words, stuttering, echoes, or level shifts.
3. Web Interface:
   • Full web interface for remote control, metering, and monitoring.
   • Supports SNMP for additional monitoring capabilities.
   • Dispatches email and SMS alarm messages for various conditions.
4. Approved for HD Radio™:
   • Approved by DTS/iBiquity for HD Radio™ applications.

Specifications:

1. Connectivity:
   • Receiver Input: 75-ohm ‘F’ connector, tunes 87.5 to 107.9MHz.
   • AES Digital Audio I/O: AES3 (XLR) digital audio loop-through at 44.1kHz sampling rate.
   • Network Interface: LAN (RJ45) connection for remote control and monitoring via the web interface.
2. Placement in Airchain:
   • Can be placed in line with the AES audio feed to either the HD Radio™ exciter or analog FM stereo encoder, depending on the application.
3. Delay Correction:
   • Correction Resolution: Corrects to ±1 sample (±23 μs).
   • Maximum Delay Error Correction: 16 seconds.
4. Audio Level and Phase Correction:
   • Automatic program phase correction and RMS level correction.
5. Alarms and Logging:
   • Alarm Conditions: RSSI (Low RF signal), Audio Loss or Levels Out of Range, Out of Alignment Range (user preset).
   • Alarm Indications: Front-panel OLED display, rear-panel ground-closure ‘tallies’, SMS-text/email notifications, JUSTIN 808 Webpage indication.
   • Alarm Logging: All alarms are logged with graphical statistics available via the web interface.
6. Power Requirements:
   • 105 – 130VAC or 210 – 260VAC, 50/60Hz; 20 watts.
7. Size and Weight:
   • 1¾”H x 19”W x 9”D (1U); 10 lbs. (shipping weight).
8. Environmental:
   • Continuous operation at ambient temperatures between 32ºF/0ºC and 122ºF/50ºC; 0-95% relative humidity, non-condensing, altitudes to 10,000ft/3,048m.

Overall, the JUSTIN 808 offers precise time alignment and automatic corrections, making it suitable for maintaining optimal audio quality in HD Radio™ applications with ease of remote monitoring and control.