Overview
The INOmini 661 is Inovonics’ second-generation, small form-factor off-air monitoring receiver for EBU-specified DAB and DAB+ digital radio broadcasts.
The 661 provides high-quality confidence monitoring and delivers a dual audio feed with independently-adjustable analog and AES digital audio outputs.
Important text metadata that accompanies the broadcast can be read in multiple menu levels on the front-panel display. The large, easy to- read LCD screen also shows pertinent signal quality metrics and audio levels.
Front-panel and remote alarms indicate transmission problems, and the compact size of the INOmini 661 allows the mounting of three units in a 1U rack space.
Features
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The INOmini 661 is a sensitive, DSP-based (SDR) receiver for EBU Band III DAB and DAB+ digital radio broadcasts.
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Easy front-panel setup uses jog-wheel menu navigation.
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A large LCD display shows essential signal parameters, demodulated audio levels, alarm conditions and program related metadata. Critical system menus are hidden.
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Balanced analog and AES-digital program line outputs are available simultaneously; levels are independently adjustable.
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Flashing-red front-panel alarms and rear-panel ‘tallies’ indicate DAB Loss, Low Signal and Audio Loss.
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All receiver setup parameters are held in non-volatile memory.
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When issued, free firmware updates are easily installed in the field.
Specifications
Tuning Range
DAB Band III, Mode 1 (174.928MHz – 239.200MHz); all EBUsanctioned frequency allocations (Blocks 5-12, A-D) plus Block 13 A-F
Antenna Input
75-ohm (BNC)
Sensitivity
10dBμV for error-free reception
Audio Codecs
MPEG-1, Audio Layer 2 (MP2); HE-AAC (AAC+)
Audio Response
±0.25dB, 20Hz – 20kHz
Signal Parameters Displayed
FQ (FIC Quality), RF (RSSI), SNR, CNR
Metadata Displayed
Ensemble Label, Component List & ID, Service List & ID, Dynamic Label, PTY, Sample Rate, Bit Rate, Gain Mode, Service Mode, Protection Info, Current CU & Address, Country, Language, Time & Date
Program Audio Outputs
- Balanced Analog (XLR) Left and Right outputs are adjustable from –15dBu to +15dBu in 0.2dB steps.
- AES Digital (XLR) output at 44.1kHz is adjustable from –30dBFS to 0dBFS in 0.2dB steps.
- Headphone Jack (3.5mm TRS) has adjustable listening level.
Front-Panel Red-Flashing Alarms
- DAB Loss: Fixed metrics determine loss of digital radio reception.
- Low Signal: Alarm and reset trigger levels are independently adjustable relative to the RF signal level display.
- Audio Loss: Alarm threshold is adjustable between 0dB and –40dB, and the alarm delay interval is adjustable between OFF and 120 seconds.
- Alarm “Tallies”: Individual open-collector NPN transistor outputs to ground are programmable for logic polarity.
USB Port
The front-panel mini-USB port allows the quick uploading of firmware updates when issued.
Power Requirement
12VDC at 335mA; a universal 90 - 240 VAC inline switching power supply is included with the INOmini 661 receiver.
Mounting Options
An optional rack adapter accepts up to three INOmini modules in a 1U, 19-inch rack space. The 661 also may easily be fastened to any convenient surface with two small screws.
Size and Weight
4.6cm H x 14cm W x 14cm D; 1.8kg shipping weight
Environmental
Continuous operation at ambient temperatures between 32ºF/0ºC and 122ºF/50ºC; 0-95% relative humidity, non-condensing, altitudes to 10,000ft/3,048m.
