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— 27 — 

When the update is complete, 

the  bootloader  window  will 

appear as shown in this illus-

tration, and the INOmini 673 

will reboot, returning you to 

whatever menu  was  showing 

before the update.

  

The firmware update process 

will retain all the settings from 

the previous firmware version, 

unless the update includes new operational features, which 

may or may not require further setup. 

‘Under the Hood’ 

The INOmini 673 FM/RDS Radio Monitor Receiver is very 

compact, utilizing mostly surface-mounted (SMD) compo-

nents.  Many of these are application-specific and/or pre-

programmed  at  the  factory,  but  all  of  them  are  impossibly  

tiny.  This makes servicing the unit in the field a difficult 

proposition at best.  For these 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 been one of ‘full disclo-

sure.’  We feel that, unless we are doing something either 

nefarious or in the interest of national security, there 

should never be a reason to hide information from the user.  

With a clear conscience, and upon request, we will cheerful-

ly provide additional documentation and divulge all but the 

very darkest secrets concerning any Inovonics product. 
Because it is so small and lightweight, returning the INOmi-

ni 673 for factory servicing is an option that we encourage.  

Inovonics has never considered factory repair charges a sig-

nificant source of revenue, and we are confident that you 

will be astonished at how reasonable our rates actually are! 

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Summary of Contents for INOmini 673

Page 1: ...FM RDS Monitor Receiver Installation User Guide June 2019 Rev 1 0 0 0 Firmware www inovonicsbroadcast com 673...

Page 2: ...1 Tuning the Receiver 11 Carrier Strength and Alarm 12 Audio Muting 13 Signal to Noise and Multipath 13 FM Stereo Mode 14 Program Audio Metering 15 The Audio Loss Alarm 15 Headphone Monitoring 16 Audi...

Page 3: ...MHz 107 9MHz in 100kHz steps Antenna Input 75 ohm F Sensitivity SNR 10 V for 50dB monaural S N 35dB V for 70dB monaural S N IF Bandwidth Auto signal adaptive or manual selection of 110kHz 84kHz 60kHz...

Page 4: ...istration process Not only does registration assure coverage of the equipment under terms of the Warranty printed inside the back cover of this manual but the user automatically receives any specific...

Page 5: ...Section III of this manual covers the easy setup and programming in structions Headphone Jack The front panel mini phone jack will accommodate stereo headphones of virtually any impedance with a 3 5m...

Page 6: ...ainst a red background quite visible even across the room If you have not yet set up the unit for use the LOW SIGNAL and or the AUDIO LOSS alarms will begin to flash soon after the receiver is powered...

Page 7: ...ns A series of bars to the right of RF will give a rudimentary display of incoming carrier strength 12 If it is transmitting an RDS Radio Data System subcarrier once a station is tuned in the station...

Page 8: ...any thing concrete but certainly more is better Likewise MP gives a relative indication of multipath signal reflection effects that radio transmissions encounter on 14 their trip to the receiver whic...

Page 9: ...n lightly processed programming will have frequent peaks reaching toward 0dB or 100 16 modulation A setting of 10dB will probably suffice for nearly any programming format Be sure to push the knob aft...

Page 10: ...may take a short while to receive the RDS Time packet as it is not sent continuously 18 PTY and PTYN Menu Screen 11 The RDS PTY Program TYpe function identifies programming type or format in the US fr...

Page 11: ...ul in Europe where nationwide networks utilize a number of low power transmitters to cover the entire country In the US translators are some 20 times used to rebroadcast a station s program on another...

Page 12: ...LOSS on the front panel and activate the rear panel R terminal With PI Error alarm selection the INOmini 673 gives an alarm for a PI code mismatch between the received PI and a PI code entered into t...

Page 13: ...et functions From most normal navigational menus push and hold down the knob to access these top secret settings 24 Firmware Version Hidden Menu Screen 1 The 673 Firmware screen will apprise you of wh...

Page 14: ...op erating menu tree navigate back to Hidden Menu 1 show ing 673 Firmware and push the knob 26 Section IV UPDATING FIRMWARE Firmware Files INOmini 673 firmware updates are issued at no charge wheneve...

Page 15: ...For these 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 alwa...

Page 16: ...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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