FM/RDS Monitor/Receiver

The INOmini 673 is Inovonics’ second-generation, small form-factor FM broadcast monitor for professional applications.

A sensitive and selective off-air receiver for standard analog-FM broadcasts, it has application as a ‘confidence monitor’ or as a rebroadcast receiver in FM translator service. The 673 decodes and displays the most important data from RDS/RBDS data groups as well.

The INOmini 673 gives front-panel and remote alarm indications of program and RDS transmission errors. It can also deliver a high-quality audio feed for program distribution throughout the broadcast facility with adjustable analog and AES digital audio outputs.

Feature

• This sensitive and selective DSP-based (SDR) receiver has extended band coverage down to 64MHz.
• Easy front-panel setup uses jog-wheel menu navigation with a large LCD display. Accurate, hi-res metering shows RF signal and audio levels; critical system menus are hidden.
• Front-panel display of most-essential RDS/RBDS information including RT+ ‘tagging’ data.
• Balanced analog and AES-digital program line outputs are available simultaneously; levels are independently adjustable.
• Flashing-red front-panel alarms and rear-panel ‘tallies’ indicate RDS Loss or PI Error, Low Signal and Audio Program Loss.
• All receiver setup parameters are held in non-volatile memory.
• When issued, free firmware updates are easily installed in the field.

Specifications

Tuning Range
Extended FM band: 64MHz to 108MHz in 100kHz steps

Antenna Input
75-ohm (F)

Sensitivity/SNR
10dBμV for 50dB monaural S/N; 35dBuV for 70dB monaural S/N

IF Bandwidth
Auto (signal-adaptive) or manual selection of 110kHz, 84kHz,
60kHz, 40kHz

Audio Bandwidth
15kHz or may be manually restricted in steps down to 2kHz

De-Emphasis
75μs/50μs selectable

Reception Modes
Stereo, Auto-Blended Stereo (with front-panel stereo width display), Forced-Mono

RDS Fields Displayed
AF, CT, DI, M/S, PI, PS, PTY, PTYN, RT, RT+, TA, TP, Groups Received; RDS or RBDS protocols are selectable.

Program Audio Output(s)
Balanced Analog (XLR) Left and Right outputs are adjustable from -15dBu to +15dBu in 0.2dB steps.

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.

Front-Panel Red-Flashing Alarms

• RDS: Alarm signals the loss of RDS data or font panel alarms; an error between the received PI code and a user-programmable PI code entry.
• 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 opencollector 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 290mA; a universal 90 - 240 VAC inline switching power supply is included with the INOmini 673 receiver.

Mounting Options
An optional rack adapter accepts up to three INOmini modules in a 1U, 19-inch rack space. The 673 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.