FM - HD Modulation Monitor M4FM-HD User Manual
Welcome Thanks for purchasing the DaySequerra M4FM-HD FM Modulation Monitor. We design and build all of our DaySequerra products to be completely reliable and easy to use, so you can concentrate on producing great sounding broadcasts, not struggling with complicated equipment or difficult to use product manuals.
Table of Contents Important Safety Information 4 Service Information 4 Introduction 5 M4FM-HD Key Features 6 M4FM-HD Technical Specifications 7 Unpacking and Installing 8 Operating Description - Controls and Indicators 9 Front Panel 9 Rear Panel 10 LCD Display 11 Modulation Measurements 12 System Menu 14 WebServer 20 Restore Factory Settings 26 Three Year Warranty 28 M4FM-HD – Features • Analog FM plus HD RadioTM – Complete monitoring of HD Radio FM broadcasts including FM mult
Important Safety Information • • • • • • • • • • Indoor use only. Not for use in wet or damp environments. Maximum Relative Humidity: <80% Class I Equipment (grounded type) Electrical rating: 100-120/220-240V~50-60Hz 18W Fuse Rating: 2A 250V 20MM AC Mains supply voltage fluctuations are not to exceed +10% of the nominal voltage Operations temperature range -40°C to 70°C Maximum altitude: 3000m (9843ft) Equipment suitable for continuous operation Weight: 5.4kg (12lbs) equipment only; 8.
Introduction DaySequerra’s M4FM-HD is the most powerful and cost-effective FM analog radio modulation monitor available today. Using a state-of-the-art Texas Instruments® DSP running at 350 MHz, all of the M4FMHD processing takes place in the digital domain. The M4FM-HD’s Texas Instruments® DSP provides superb analog audio performance (SNR > 75 dB and THD < 0.1%) as well as simultaneous total, pilot, L, R, L+R and L-R, and all Composite-SCA modulation level measurements with better than 1.0% accuracy.
M4FM-HD Key Features • Analog FM plus HD RadioTM – Complete monitoring of HD Radio FM broadcasts including FM multicast channels HD-2 through HD-8: user-selectable tuning steps and analog FM 50/75 µSec de-emphasis. • Bright LCD front panel display of Station, presets, RBDS with network and alarm conditions • Frequency-Agile RF Input – Synthesized FM preselector provides -50 dB quieting sensitivity < 30 dBf (-90 dBm) • Built-in RF Attenuator – 30 dB for wide RF input range of <0.
M4FM-HD Technical Specifications Frequency Range FM: 87.5 MHz to 107.9 MHz in 100 or 200 KHz increments RF Input Range 0.5 vRMS to 7 vRMS on 75-ohm F-type connector Sensitivity < 30 dBf (-90 dBm) for -50 dB Quieting Modulation Frequency 30 Hz – 100 KHz Frequency Deviation ±75 KHz for 100% Modulation Frequency Deviation Indication 0 to 150% Deviation Frequency Deviation Indication Accuracy ±1.0% @ 0% to 150% Deviation Composite Signal Output Frequency Response < ± 0.
Unpacking and Installing the M4FM-HD Immediately upon receiving your M4FM-HD, please make a careful inspection for any shipping damage. If damage is found or suspected, please notify the carrier at once and then contact your dealer. The DaySequerra M4FM-HD is shipped in one carton, which contains: the M4FM-HD unit, and an AC power cable. We strongly encourage you to save the shipping carton and shipping materials supplied with your M4FM-HD.
Navigation The M4FM-HD employs a 3-button user interface. From the start ‘HomeScreen’ press the center button once. An arrow will appear next to the frequency. Use the UP/DN arrow button to toggle the Arrow on the LCD around the different fields on the HomeScreen. Press the Center button to select a field to change. The arrow will start to flash indicating that the UP/DN arrows are available to change the value of the field. Press the Center button to save and exit.
• Down Arrow – Momentary push DOWN from the Homescreen will enter the Headphone volume menu. Both arrows are used to increase and decrease the volume. From selection mode Press ENTER again to change a value in any a field indicating a blinking arrow ready. Use the UP and DOWN arrows to navigate/toggle through the available choices or range. DOWN Arrow button tunes the frequency down one increment while tuning to a new station, when held for three seconds it tunes faster at 1.5x speed.
• The M4FM-HD Ethernet Port offers the use of DaySequerra’s Webserver by connecting the M4FM-HD to any networked computer with Internet access. The use of crossover cables can be used in areas where a network connection is not possible. More information on the Webserver can be found at the end of this manual.
7. Tuner Mode – Switch between Auto, Forced Digital, Forced Analog, and Mono. By default the tuner is set to AUTO. Auto Mode – The tuner will attempt to lock on an HD Radio signal if available. If HD is unavailable the tuner will fall back to Analog. Forced Mono – Forces the tuner to Mono from Stereo. Forced Analog – Forces the tuner to Analog from Digital. Forced Digital – Forces the tuner to digital. If the digital signal is not strong enough the tuner will fall back to Analog.
Integer values for Left, Right, Left + Right and Left – Right are displayed in 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. Integer values for Pilot, 57 kHz, 67 kHz, and 92 kHz are displayed in %. This is a read-only submenu.
System Menu Press and hold the CENTER button for 3 seconds to enter the SYSTEM menu. Use the arrow buttons to navigate to the desired submenu. To exit to the previous menu enter selection mode and toggle the arrow up to EXIT and press the CENTER button to revert back to the previous screen. Figure 9. Audio Muting - The M4FM-HD’s audio output can be set to automatically mute for received signals with signal strength less than 45dBf.
Figure 11. RF Carrier Loss - Alarm based on analog RF signal strength Threshold: Navigate the arrow to Threshold and press ENTER to change the Threshold. A blinking arrow will indicate the Threshold can be changed. Low, Medium and High are available to choose from. Use the arrows to toggle through the choices. Press ENTER to make a selection and return to the RF Carrier Loss menu.
Status: Use the arrows to toggle between Enabled or disabled to turn the alarm ‘ON’ and ‘OFF’ (default – disabled) Save: Saves all conditions and exits back to the Alarm menu. HD Lock - HD signal lost Delay: Use the arrow buttons to select from 1 – 300 seconds of delay (default – 15 sec) Status: Use the arrows to toggle between Enabled or disabled to turn the alarm ‘ON’ and ‘OFF’ (default – disabled) Save: Saves all conditions and exits back to the Alarm menu.
• Output 5 – RF Carrier loss, Audio Loss, OFDM Lock Loss, HD Lock Loss, Multicast Loss, Over Modulation, Empty Default: Multicast Loss • Output 6 – RF Carrier loss, Audio Loss, OFDM Lock Loss, HD Lock Loss, Multicast Loss, Over Modulation, Empty Default: Over Modulation Toggle the arrow to the top right of the LCD and select EXIT to revert back to the previous page. Audible Alarm Buzzer “ON” or “OFF” option using UP and DN switches to toggle the setting.
RF Loss Pad -30 dB of attenuation is applied during startup by default unless this feature is disabled. Remotely this feature is available with the ‘Other Settings’ box in the System Menu of the webserver. Enable or Disable. (Default: Enabled) Select to exit to the previous menu. Diagnostics A Read-Only menu displaying the SNR (Signal to Noise Ratio) in dB. The Date with a running 12-hour AM/PM clock. Toggle Exit with the arrow and press ENTER to exit to the previous menu. Figure 14.
after the last field saves all changes. The arrow will stop flashing indicating it is in selection mode. Toggle Exit with the arrow and press ENTER to exit to the previous menu. Once a change has been made the unit will reset and automatically restart. 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 in the Settings tab of the WebServer. Figure 16.
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.
Tuner Tab 4 5 6 1 7 2 8 3 9 Figure 17. 1. Tuner Frequency - The tuned frequency is displayed in a large font here. Tuning buttons tunes the frequency Up and Down within the range of 87.5 MHz to 107.9 MHz in 100 or 200 KHz increments. Holding the button for more than 3 seconds will increase the speed by a factor of 2. 2. Multicast - Displays multicast HD-1 thru HD-8 when available highlighted in bold. Selecting highlights the text in orange. 3.
• FORCED DIGITAL – forces the tuner into Digital. If Digital is not available or the signal is too weak the tuner will fall back to Analog. *Enabling Digital Auto Force in the ‘Other Settings’ section of the webservers SYSTEM tab will force the tuner into Digital and prevent it from falling back to Analog. If Analog is unavailable the tuner will mute. 8. Preset selection - 25 slots for FM stations are available to be stored.
2. Carrier Measurements (Bargraph) – displaying Positive, Negative and Total Positive + Negative in percent. Integer values of these measurements are available in the M4FM-HD’s meters submenu. 3. Subcarrier Measurements (Integer) – displaying Pilot, 57 KHz, 67 KHz, and 92 KHz levels in percent Alarms Tab 2. 3. 1. Figure 19. 1. Alarm configurations – sets the individual conditions for each of the 6 alarms. *Slide the Enable switch to the right to enable an alarm.
3. Program Loss Relay Outputs – configures the M4FM-HD for alerts externally via GPIO when Alarm conditions become active. Each relay can be set to any of the 6 alarms or empty. See figure 10 on page 14 for the DB-15 pinout. Network Tab 1. 3. 2. Figure 20. 1. Network Settings – Enables and disables DHCP. Enabling DHCP allows the DHCP router to chose an IP address for the M4FM-HD and auto-populate the subnet and gateway. The tuners MAC is READ-ONLY and cannot be changed.
System Tab 1. 4. 2. 3. Figure 21. 1. Network Time – M4FM-HD will automatically acquire the network time from the host server. Set the Time Zone and Daylight Savings for your region. 2. Misc. Settings – Sets many of the tuners basic features. a. Audio muting - The M4FM-HD’s audio output can be set to automatically mute for received signals with signal strength less than 45dBf. b. RF loss pad - Attenuates the amount of RF to the tuner in high RF areas by -30 dB c.
not available. This feature is independent of the Tuner Mode pull down menu within the main tuner tab. g. Auto backlight off – Enabling this feature will turn the LCD backlight off after 120 seconds. Waking the tuner up by tuning from the webserver or pressing any of the 3 buttons on front panel will turn the LCD back on and reset the 120 second timeout again. Disabling will keep the LCD backlight illuminated full time. 3. Actions a.
DaySequerra – Three Year Limited Warranty DaySequerra warrants this product to be free from defects in materials and workmanship to its original owner for three (3) years from the date of purchase. DaySequerra will repair or replace such product or part thereof that upon inspection by DaySequerra, is found to be defective in materials or workmanship. A Return Authorization Number must be obtained from DaySequerra in advance of return.
