Inovonics INOmini 674 Installation & User Manual Download Page 1

 

 

AM Monitor Receiver 

Installation & User Guide 

 

June, 2019 - Rev. 1 Firmware 

 

www.inovonicsbroadcast.com 

674 

TABLE OF CONTENTS 

Section I  -  INTRODUCTION 

Product  Description ............................................. 1 
Product Features ................................................. 1 
Product Specifications ........................................ 2 

Section II  -  INSTALLATION AND CONNECTION 

Unpacking and Inspection ................................... 3 
Warranty Registration.......................................... 3 
Mounting .............................................................. 3 
AC Mains Power ................................................... 4 
Battery Operation ................................................ 4 
Radio Frequency Interference (RFI) .................... 4 
Antenna Considerations ...................................... 4 
The Front-Panel Display and Menu Knob ........... 5 
Headphone Jack .................................................. 5 
Rear Panel Connections ...................................... 5 

Section III  -  OPERATING THE INOmini 674 

Hey, why is the screen flashing? ......................... 7 
Menu Navigation  Basics ....................................... 7 
Locked  Menus ....................................................... 8 
Tuning the Receiver .............................................. 8 
Carrier Strength and Alarm .................................. 9 
Mute on Low Signal ............................................ 10 
Signal-to-Noise ................................................... 10 
The Audio Loss Alarm ........................................ 10 
Program Audio Metering .................................... 11 
Headphone Monitoring ....................................... 12 
Audio Output Levels ........................................... 12 
Program De-Emphasis........................................ 13 
Reception Bandwidth ......................................... 13 
Locked  Menus ..................................................... 14 

HIDDEN MENUS

 

Firmware  Version ................................................ 14 
AM Channel Spacing .......................................... 14 
Alarm Polarity ..................................................... 14 
Backlight Color ................................................... 14 
Loading Factory Defaults ................................... 15 
Returning to the Menu Tree ................................ 15 

Section V  -  UPDATING FIRMWARE 

Firmware Files .................................................... 16 
 ‘Under the Hood’ ................................................ 17 

WARRANTY  ............................................ (inside back cover) 

Summary of Contents for INOmini 674

Page 1: ...Headphone Jack 5 Rear Panel Connections 5 Section III OPERATING THE INOmini 674 Hey why is the screen flashing 7 Menu Navigation Basics 7 Locked Menus 8 Tuning the Receiver 8 Carrier Strength and Alar...

Page 2: ...rmer isolated 50 0hm F input a passive outdoor loop antenna is optionally available Sensitivity SNR 10 V for 50dB S N 1mV for 60dB S N Audio Bandwidth Selectable 6kHz 4kHz 3kHz 2kHz ap prox 6dB point...

Page 3: ...Each Inovonics INOmini module is supplied with an out board universal 90 240VAC switching type power supply As the actual power consumed by the INOmini 674 is 240mA at 12 volts DC a second DC connect...

Page 4: ...eturned to the G Ground terminal The 5VDC sup plied on the 5 terminal is current limited with a 100 ohm series resistor and suitable only for optical couplers LED indicators or small reed relays The p...

Page 5: ...to make a selection or to set a value and then 4 push again to accept the selec 8 tion and lock it into non volatile memory and to be re turned to menu navigation In setup menus any parameter that can...

Page 6: ...distance Background noise level at the receiver location is another factor Receiver AGC may bring up a distant co channel 10 signal or random noise enough to hold off the LOW SIGNAL alarm Be sure to v...

Page 7: ...scale is linear in 1dB steps down to 20dB and then in 2dB steps to 40dB 0dB represents 100 symmetrical amplitude modulation of the carrier 400Hz sinewave modulation of the transmitter 12 to the 100 po...

Page 8: ...Discussed on Page 8 HIDDEN MENUS The INOmini 674 also has settings for little used set and forget features From any normal navigational menu push and hold down the knob to access these top secret set...

Page 9: ...m hidden menu settings back to the normal op erating menu tree navigate back to Hidden Menu 1 show ing 674 Firmware and push the knob 16 Section IV UPDATING FIRMWARE Firmware Files INOmini 674 firmwar...

Page 10: ...hese reasons and also because of the small format of this manual we have dispensed with schematic diagrams servicing instructions and a listing of component parts Nevertheless our policy has always be...

Page 11: ...19 This is a blank page 20 This is a blank page...

Page 12: ...s been removed or altered III TERMS OF WARRANTY Inovonics Inc products are warranted to be free from defects in materials and workmanship A Any discrepancies noted within THREE YEARS of the date of de...

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