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Section I
INTRODUCTION
Product Description
The INOmini 634 is an off-air receiver for standard, medi-
um-wave analog radio broadcasts and targets professional
‘confidence-monitoring’ applications.
The front-panel, back-lighted LCD display is host to various
menu screens, which facilitate easy setup of the 634 and
display various parameters of received signal quality.
Product Features
Features of the Inovonics 634 include:
Sensitive and selective DSP-based receiver tunes in
either 10kHz (American) or 9kHz (European)
increments.
Easy setup using the LCD screen and jog-wheel
navigation of the receiver’s menu tree.
Accurate display of received signal strength and
audio levels.
Analog and AES-digital program line outputs.
Front-panel alarms with rear-panel ‘tallies’ for Carrier
Loss and Audio Program Loss.
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Product Specifications
Tuning Range:
520kHz – 1710kHz in 10kHz steps, or
531kHz – 1611kHz in 9kHz steps
Antenna Input:
High impedance (whip antenna) input (F),
phantom-powered for optional active outdoor antenna
Receiver Sensitivity:
10µV for 50dB S/N
IF Bandwidth:
Selectable at 6kHz, 4kHz, 3kHz, 2kHz; see
graph on Page 12
Audio Frequency Response:
50Hz – 6kHz at full band-
width
De-Emphasis:
NRSC (‘truncated’ 75µs) or OFF
Program Audio Output(s):
+4dBu balanced “dual monaural”
Analog Left and Right, (XLR), 200-ohm source imped-
ance; AES Digital (XLR), 44.1kHz sampling rate; Front-
Panel Headphone Jack (3.5mm TRS)
Alarm Tallies:
Individual open-collector NPN transistor
outputs for Carrier Loss and Audio Loss
Power Requirement:
12VDC at 140mA. A ‘wall-outlet
transformer’ (WallWart®) switching-type power supply
appropriate to the destination AC mains voltage is pro-
vided.
Mounting Options:
An optional rack adapter accepts up to
three INOmini modules in a 1U, 19-inch rack space, or
the 634 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.
