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M4FM-HD User Manual 

WebServer 
 

Provides full access to the M4FM-HD remotely via web browser.   
 
A network connection or crossover cable is required for this feature.  Crossover cables may be used 
when a Network connection is not available. Power ON the M4FM-HD and open a web browser.  Type 
the IP address of the M4FM-HD in the URL to open the WebServer.   
 
Five  tabs  are  displayed  at  the  top  of  the  WebServer  window  –  M4FM-HD,  Meters,  Alarms,  Network, 
and System 
 

Tuner

 – The main tab that controls Frequency Tuning in a large font, displays station call letters and ST 

indicator  when  the  tuner  is  locked  onto  a  Stereo  signal  and  25  FM  Presets  with  the  current  Alarm 
Status of the M4FM-HD.   
 

Meters

  –  Displays integer  values  for  the  Subcarriers (Pilot,  57  KHz,  67  KHz,  and  92  KHz); Bargraph 

meters for Audio and Demodulation levels. 
 

Alarms

 – Enables and disables each of the 6 alarms (RF Carrier Loss, Audio Loss, OFDM Lock Loss, 

HD Lock Loss, MC Loss, and Over Modulation. A relay output pull down menu is available to set each 
of the six alarms for external monitoring via DB-15.   
 

Network

 – Displays and sets all network settings, Private FTP, and Email Notifications for alarms. 

 

System

  –  Provides  remote  configuration  of  all  of  the  Alarm  features,  Email  and  Network  settings.  

About window displays the M4FM-HD Serial and Firmware number and Box ID.  All Firmware Upgrades 
are  performed  by  clicking  the  ‘Check  for  Update’  box.    A  private  FTP  site  may  be  setup  to  perform 
upgrades.  Please contact DaySequerra if you wish to perform upgrades using Private FTP so you are 
notified when updates become available.  Remotely resetting the M4FM-HD can be accomplished by 
clicking on the Reset button at the bottom of this tab.  The most recent M4FM-HD user manual is also 
available for download by checking its box. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for M4FM-HD

Page 1: ...M4FM HD FM HD Modulation Monitor User Manual...

Page 2: ...ucts has evolved through a process of user feedback extensive listening field testing and careful refinement In the event that you encounter any technical or operational difficulties with this or any...

Page 3: ...oadcasts including FM multicast channels HD 2 through HD 8 user selectable tuning steps and analog FM 50 75 Sec de emphasis Frequency Agile RF Input Synthesized FM preselector provides 50 dB quieting...

Page 4: ...ly 8 2kg 18lbs shipping Important Note Please connect your M4FM HD to an uninterruptible power supply UPS to provide other protection against power surges and brownouts Service Information The DaySequ...

Page 5: ...tput with greater than 1W into 8 ohm for an uncompromised convenient audio monitor The M4FM HD rear panel has an FM composite output as well as a GPIO port that provides opto isolated reset input and...

Page 6: ...digital audio output as well as a high performance headphone output with greater than 1W into 8 ohm Email Alerts and Rear Panel Alarm Tallies For loss of Audio Carrier and RDS RBDS remote reset via re...

Page 7: ...185 0 1 IMD SMPTE 0 1 SNR IEEE 185 75 dB Channel Separation L R and R L 45 dB 30 Hz to 15 KHz Crosstalk L R to L R to L R 45 dB 30 Hz to 15 KHz Pilot Carrier Measurement 0 50 0 to 15 Injection Level A...

Page 8: ...n set at the factory to operate at 120VAC unless otherwise specified on the shipping carton The M4FM HD export version is configured for 240VAC operation Please connect your M4FM HD to an uninterrupti...

Page 9: ...on multiplexing portion of an HD Radium signal and digital carrier S N 58dB Hz thereby permitting HD Radium digital audio to be valid HD is displayed in upper right hand corner of VFD when tuner has a...

Page 10: ...press the reset button hidden behind the front panel to the right of the center button to power cycle the unit while holding all presets and other settings in memory Headphones Accepts any headphone...

Page 11: ...e selection arrow and navigate to position 1 as described above Note the arrow will timeout after 15 seconds of inactivity Press the center button again flashing arrow indicating the station is ready...

Page 12: ...ll fall back to Analog Auto Digital Force enabled in the system tab ensures the tuner will not fall back to Analog if the signal is on the edge of HD and Analog 8 Modulation enters a submenu displayin...

Page 13: ...n dB This is a read only submenu Figure 6 Demodulation Figure 7 Integer values for Positive Negative and Total Positive and Negative are displayed in This is a read only submenu Subcarriers Figure 8 I...

Page 14: ...tuning until SPLIT mode is disabled Alarms Program Loss Monitor Enabling any alarm will disable tuning presets and band selection from the WebServer and M4FM HD box User interface Program Loss Monito...

Page 15: ...the alarm ON and OFF default disabled Save Saves all conditions and exits back to the Alarm menu Audio Loss Silence Detect Threshold Navigate the arrow to Threshold and press ENTER to change the Thre...

Page 16: ...105 by default It can be manually set within the range of 100 125 in 1 increments Modulation Level Use arrow buttons to select between 100 125 modulation in 1 increments Delay Use the arrow buttons t...

Page 17: ...ing Select ON for audible alarm to beep during any active alarm condition and continue with alarm configuration menu select OFF for audible alarm to be silent during any active alarm condition Press E...

Page 18: ...current status of DHCP the static IP address Subnet Gateway and MAC address Toggle Exit with the arrow and press ENTER to exit to the previous menu More NETWORK details can be viewed Figure 15 DHCP i...

Page 19: ...t About A Read Only menu displaying the HDRadio DSP and Firmware version The selection mode arrow is defaulted to the top right corner of the menu To Exit press ENTER More ABOUT details can be viewed...

Page 20: ...dio and Demodulation levels Alarms Enables and disables each of the 6 alarms RF Carrier Loss Audio Loss OFDM Lock Loss HD Lock Loss MC Loss and Over Modulation A relay output pull down menu is availab...

Page 21: ...xt in orange 3 Artist Experience Displays album art when available 4 RF Level and SNR Displays the amount of RF strength from the tuned frequency SNR Displays READ ONLY signal to noise ratio express i...

Page 22: ...3 seconds will save the currently tuned station in that slot Hold an already saved preset for more than 3 seconds will overwrite and save the currently tuned station in that slot Unavailable when Ala...

Page 23: ...rations sets the individual conditions for each of the 6 alarms Slide the Enable switch to the right to enable an alarm The M4FM HD box user interface will display the exact state of the alarm under S...

Page 24: ...ate FTP Settings Enables and disables the use of a private FTP site to store firmware updates Enabling this feature will direct the M4FM HD to the host IP provided by the user when checking for firmwa...

Page 25: ...enuates the amount of RF to the tuner in high RF areas by 30 dB c De Emphasis Switch between 75 sec and 50 sec M4FM HD is set to 75 sec by default Press ENTER after making a selection to save and EXIT...

Page 26: ...dically b Local update select to update locally Contact DaySequerra to obtain a compiled bin file to upload via the local update GUI c Downgrade firmware Downloads the previous firmware version 1 iter...

Page 27: ...be void in the event a covered product has been damaged or failure is caused by or attributable to acts of God abuse accident misuse improper or abnormal usage failure to follow instructions improper...

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