Overview
The INOmini 679 is Inovonics’ third-generation, small form-factor FM and FM-band HD Radio broadcast monitor receiver. It receives both analog FM and digital HD1-HD8 radio channels for confidence monitoring and delivers a high-quality audio feed for rebroadcast or program distribution throughout the broadcast facility with adjustable analog and AES digital audio outputs.
FM RBDS and HD Radio PAD data may be called-up for display on the front-panel LCD screen.
Strictly for professional applications, the INOmini 679 purposely does not blend between the analog FM and HD1 simulcast like a consumer radio. Tuning and mode preferences are held in nonvolatile memory and all settings are restored following a power cycle.
Features
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The INOmini 679 is a sensitive, DSP-based (SDR) radio that receives standard FM analog and FM/HD Radio broadcasts.
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Stays on-mode and on-channel through signal and power loss; does not blend between FM and HD.
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Easy front-panel setup uses jog-wheel menu navigation with a large LCD display. Accurate, hi-res metering shows RF signal and audio levels, RBDS/PAD data and reception metrics. 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 HD Reception Loss, Low Signal and Audio Loss.
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‘Split Mode’ audio monitoring aids transmission diversity delay setup.
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The LCD displays RSSI, SNR, Cd/No, Multipath and HD Level metrics to help with receive antenna alignment.
- When issued, free firmware updates are easily installed in the field.
Specifications
Tuning Range
87.5MHz – 107.9MHz in 100kHz steps
Antenna Input
75-ohm (F)
HD Radio™ Channels
Selectable HD1 through HD8
Sensitivity/SNR
10dBμV for 50dB monaural-FM S/N
Audio Response
- FM: ±1dB, 30Hz – 15kHz; de-emphasis is menu-selectable for 75μs or 50μs
- HD Radio™: ±0.25dB, 20Hz – 20kHz
FM Stereo Modes
Stereo / Stereo Auto-Blend / Forced-Mono
RDS Fields Displayed
PI (and call), C/T, PTY, PTYN, PS, RT, RT+1, RT+2
HD Radio™ Channels
Selectable HD1 through HD8
HD Pad Fields Displayed
HD Name/Slogan, HD PTY, FCC ID, HD Artist, HD
Title, HD Album, HD Genre, Primary Service Mode, Coded Mode, Transmit
Gain, Transmit Blend Control
Program Audio Outputs
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Balanced Analog: (XLR) Left and Right outputs are adjustable from
–15dBu to +15dBu in 0.2dB steps.
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AES Digital: (XLR) output at 44.1kHz is adjustable from –30dBFS to 0dBFS in
0.2dB steps.
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Headphone Jack: (3.5mm TRS) has adjustable listening level.
Front-Panel Red-Flashing Alarms
- HD Loss: Fixed metrics determine loss of HD Radio reception.
- Low Signal: Alarm and reset trigger levels are independently adjustable relative to the FM carrier level display.
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Audio Loss: Alarm responds to monitored service (FM or HD Radio).
Alarm threshold is adjustable between 0dB and –40dB, and the alarm delay interval is adjustable between OFF and 120 seconds.
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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 679 receiver.
Mounting Options
An optional rack adapter accepts up to three INOmini modules in a 1U, 19-inch rack space. The 679 also may easily be fastened to any convenient surface with two small screws.
Size and Weight
1.6”H x 5.5”W x 5.5”D; 4 lbs. 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.
