INOmini AM Broadcast Monitor/Receiver

Model 674

UPC: 850025677219

AM Broadcast Monitor/Receiver

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The INOmini 674 is Inovonics’ second-generation, small form-factor AM broadcast receiver for professional applications.

It serves admirably as a ‘confidence monitor,’ and includes alarms to indicate transmission problems. At the same time it can deliver a high-quality audio feed for program distribution throughout the broadcast facility.

The INOmini 674 is easily programmed to tune the western-hemisphere broadcast band with 10kHz channel spacing, or the European-standard 9kHz-spaced band. It provides adjustable balanced analog and AES digital audio outputs along with local alarm ‘tallies.’

This little jewel is a potent tool. Easily configurable, for the variety of stations I work with, with excellent performance, and quiet reception under a variety of conditions. As a business partner said many years ago, "It leaves me alone." It's a stable, high confidence product, that eliminates many of the worries, the constant tweaking, or the many obstacles to reliable off-air monitoring. Turn it on, Go to work. Value Analysis: A little pricey. But, then, quality generally is. Amortized over the life of the product, which should be substantial, it's a good value.

Warren A. Hammling - Maus Productions / WolfTracks

Features

Specifications

Reviews

Documentation

Downloads

Features


  • The INOmini 674 is a sensitive, DSP-based (SDR) receiver for standard AM broadcasts.

  • Easy front-panel setup uses jog-wheel menu navigation with a large color-LCD display. Critical system menus are hidden.

  • Balanced analog and AES-digital program line outputs have separately-adjustable levels and may be used simultaneously.

  • Flashing-red front-panel alarms and rear-panel ‘tallies’ indicate Carrier Loss 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.


Video Disponible en Español

Reviews

The 674 is easy to install and configure. It meets all of our required expectations. A bit expensive, but highly recommended.

- Vic Malavé - Bridge Radio

Radio World: INOmini 674 AM Monitor Review

- Tom Vernon Exploring the Inovonics 674 AM Monitor Receiver

Specifications


Tuning Range

520kHz – 1710kHz in 10kHz steps, or 531kHz – 1611kHz in 9kHz steps

Antenna Input

Transformer-isolated 50Ω (F) input; a passive outdoor loop antenna is optionally available.

Sensitivity/SNR

10µV for 50dB S/N; 1mV for 60dB S/N

Audio Bandwidth

Selectable: 6kHz, 4kHz, 3kHz, 2kHz (approx. –6dB point)

De-Emphasis

0µs (flat) or NRSC ‘truncated’ 75µs

Program Audio Outputs

  • Balanced Analog (XLR) Left and Right (dual-mono) 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

  • Audio Loss: Alarm threshold is adjustable between 0dB and –30dB, and the alarm delay interval is adjustable between OFF and 120 seconds.
  • Low Signal: Alarm and reset trigger levels are independently adjustable relative to the RF signal level display.
  • 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 275mA; a universal 90 - 240 VAC inline switching power supply is included with the INOmini 674 receiver.

Mounting Options

An optional rack adapter accepts up to three INOmini modules in a 1U, 19-inch rack space. The 674 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

Documentation


674 Manual

674 Data Sheet

674 Manual (Spanish)

674 Data Sheet (Spanish)

Downloads


674 Firmware - Rev. 1.0.1.1

Firmware Update Instructions

Actualizar Firmware_Espanol