M4FM
Analog FM
Modulation Monitor
User Manual
Ready
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M4FM User Manual
Welcome
Thanks for purchasing the DaySequerra M4FM Analog 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.
While the M4FM has been designed to be straightforward to use, we do suggest that you spend a few
minutes familiarizing yourself with the features and operational functions that are contained in this
manual.
DaySequerra has been building broadcast quality products since 1989. The technology developed for
the M4FM, and all of our products, 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 DaySequerra
product, please feel free to contact us at 856-719-9900. Our office hours are from 9 to 5 ET, Monday
through Friday. Or you can email your questions to: info@daysequerra.com.
Also, please remember to visit our website www.daysequerra.com for warranty registration and the
latest DaySequerra product information.
We have worked hard to ensure that your DaySequerra M4FM Analog FM Receiver will reliably serve
as a flawless link between the transmitter and your monitoring facility, or as the primary broadcast
reference source in your studio.
We sincerely hope our products help you achieve a new level of excellence in your work!
David V. Day
and the DaySequerra Team
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Table of Contents
Important Safety Information 4
Service Information 4
Introduction 5
M4FM Key Features 6
M4FM 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 13
WebServer 19
Restore Factory Settings 25
Three Year Warranty 26
All rights reserved DaySequerra Corp. Copyright 2009.
All logo s and trademark used herein are the property of their respective owners.
Specifications subject to change.
M4FM
M4FM – Features
•
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 <0.5 vRMS
to 7 vRMS
• Worldwide Capable – Complete with user-selectable 100 or 200 kHz
tuning steps and 50 or 75 µSec de-emphasis
• Simultaneous Modulation Measurements – Total, pilot, L, R, L+R and
L-R, and all Composite-SCA level measurements with better than 1.0%
accuracy
• Superb Audio Performance – +4 dBm @ 100% modulation with SNR >
75 dB and THD < 0.1%; full-time AES-3 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 rear panel GPI
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M4FM User Manual
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; 8.2kg (18lbs) shipping
Important Note: Please connect your M4FM to an uninterruptible power supply (UPS) to provide
other protection against power surges and brownouts.
Service Information
The DaySequerra M4FM contains no user serviceable components inside the unit. Please contact
DaySequerra for repair and upgrade information. In the event that your unit needs to be returned to the
factory, contact us for a return authorization number. The monitor ID and firmware version is
momentarily displayed at start-up for your convenience. Please visit www.daysequerra.com and
register your new M4FM so we can keep you informed of the latest hardware and software
updates.
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Introduction
DaySequerra’s M4FM 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 M4FM
processing takes place in the digital domain.
The M4FM’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. The M4FM also provides decoded
RDS/RBDS data.
In addition to its accuracy and features, the M4FM gives you audiophile grade Class-A biased audio
outputs at +4 dBm on XLR connectors, so you can monitor and adjust your processing. In addition to L
and R analog outputs, the M4FM has a full-time AES-3 digital audio output, so you can feed your AES
monitoring chain, and a high-performance headphone output with greater than 1W into 8-ohm for an
uncompromised, convenient audio monitor.
The M4FM rear panel has an FM composite output, as well as a GPIO port that provides opto-isolated
reset input and relay-contact closure alarm outputs for loss of audio, carrier and RBDS. You can control
and monitor the M4FM from anywhere in your plant via the M4FM’s integrated webserver, which is fully
compatible with most web browsers and operating systems. The M4FM’s Remote Dashboard provides
complete remote control monitoring, 50 station scanning, logging and alarm status; it delivers
simultaneous total, pilot, L, R, L+R and L-R, all MPX-SCA modulation level measurements and
decoded RDS/RBDS data. The M4FM will send alerts to your phone; and you can reset the M4FM
remotely as well.
Your M4FM is HD Radio ReadyTM meaning it can be fully upgraded at any time to provide complete HD
Radio® capability. With our Factory-Direct Upgrade program, you can be sure that your investment in a
DaySequerra M4FM will continue to pay off well into the future.
Please read this manual thoroughly before operating your M4FM.
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M4FM User Manual
M4FM Key Features
• 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 <0.5 vRMS to 7 vRMS
• Worldwide Capable – Complete with user-selectable 100 or 200 kHz tuning steps and 50 or
75 µSec de-emphasis
• Simultaneous Modulation Measurements – Total, pilot, L, R, L+R and L-R, and all
Composite-SCA level measurements with better than 1.0% accuracy
• Superb Audio Performance – +4 dBm @ 100% modulation with SNR > 75 dB and THD <
0.1%; full-time AES-3 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 rear panel GPI
• Remote Dashboard providing total remote control, display and remote reset from any browser
including
• 50 presets with RBDS, network and alarm conditions
• Audio level, digital audio quality and carrier quality indications
• Complete remote firmware upgrade – tolerant of high-latency networks
• FRONT PANEL ALARM LED – Indicates active alarm condition
• PROGRAMMABLE STATUS ALARMS – alarm outputs for loss of audio program, carrier, pilot
and RBDS as well as audio peak, all with programmable settings for level and duration
• High performance Headphone Monitor delivering greater than 1W into 8-ohm
• Webserver compatible with any browser on your Ethernet network
• Alarms can be emailed to your phone
• Remote reset via WebServer
• Use your Wireless Router for remote control using your Android® or iPhone®
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M4FM 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 < ± 0.25 dB
THD (IEEE 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
Accuracy at all Modulation Levels
<±1.0% @ 0% to 100% Modulation
Audio Output
Frequency Response < ± 0.25 dB
De-Emphasis User Selected 50 or 75 µS
THD (IEEE 185) < 0.1%
IMD (SMPTE) < 0.1%
SNR (IEEE 185) > 75 dB
Power
40 W, Auto-sensing
90-264 VAC, 50/60 Hz
Environmental
Operating Temperature: +41 to +105 F (+5 to +40 C) Storage
Temperature: -13 to +140 F (-25 to +60 C) Relative Humidity:
Maximum 85%, non-condensing
Dimensions
17.3” W x 1.7” H x 16.875” D
Shipping Weight
12 lbs. (5.4 kg)
Warranty
Three years, limited parts and labor
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M4FM User Manual
Unpacking and Installing the M4FM
Immediately upon receiving your M4FM, 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 is shipped in one carton, which contains: the M4FM unit, and an AC power cable.
We strongly encourage you to save the shipping carton and shipping materials supplied with
your M4FM. They are specially designed to properly protect your M4FM, and in the event that you
need to return it for service, only these OEM shipping materials can ensure its safe return to our
factory.
We provide a limited 3-year warranty on all of our products, but if you don’t register your unit, it’s hard
for us to contact you when software updates become available. So please take a few minutes to
complete the warranty registration form on our web site, www.daysequerra.com. Thank you!
Rack Mount Installation. The M4FM chassis has four rack mounting holes in its chassis and has
been designed to fit in a 19” standard 1RU space. Plastic ‘finishing’ washers are recommended to
protect the painted finish around the mounting holes.
Power Connection. The AC power cable supplied with the M4FM must be connected from the
M4FM’s IEC320 power entry module to an AC mains outlet with a functional earth ground connection.
The M4FM has been set at the factory to operate at 120VAC unless otherwise specified on the shipping
carton. The M4FM export version is configured for 240VAC operation. Please connect your M4FM to
an uninterruptible power supply (UPS) to protect against power surges and brownouts.
Antenna Input Connections. Separate 75ohm F-type connector is provided on the M4FM rear panel
for dedicated AM and FM antennas
Audio Output Connections. Analog audio left and right outputs are on rear-panel XLR connectors
with pin 1 GND, pin 2 + and pin 3 -. The digital audio output is transformer-isolated in S/PDIF format on
a rear-panel XLR connector with pin 1 GND, pin 2 XFMR and pin 3 XFMR. The M4FM digital audio
output is 5.1 surround capable. FM Composite Output has a Frequency Response <+/- 0.25dB, Total
Harmonic Distortion (IEEE 185) <0.1%, IMD (SMPTE) <0.1%, SNR (IEEE 185) >75 dB
Ethernet Connection - The M4FM Ethernet Port offers the use of DaySequerra’s Webserver by
connecting the M4FM 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. The Ethernet port with the aid of the webserver will keep the
M4FM up to date on all Firmware upgrades by checking, downloading and installing with the click of the
‘Check Firmware’ button on the webserver. (An internet connection must me available for ‘Firmware
Upgrade. to work. UPON RECEIVING THE UNIT IT IS ENCOURAGED TO ‘CHECK FIRMWARE’
FROM THE WEBSERVER TO BE SURE YOUR M4FM IS USING THE MOST RECENT FIRMWARE
AVAILABLE.
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Navigation
The M4FM 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. To access the SYSTEM menu press and hold
the center button for 3 seconds.
M4FM Operating Description - Controls and Indicators
Front Panel
Figure 1.
Status
• Alarms – Bi-colored LED: Green indicates that an alarm is set. Red LED illuminates when an
alarm is active. Red will flash every second when an alarm conditions are met until either the
user disables the alarm or the conditions move outside of the set parameters. (*M4FM models
that are dated before 2015 do not support bi-colored LED’s)
• RDS – Blue LED illuminates when RDS data is available.
• Stereo - Blue LED illuminates when tuner has acquired and locked onto a Stereo signal
• RF Level – Bi-colored LED: Green indicates strong RF > 40 dB. Red indicates weak RF < 40
dB. (*M4FM models that are dated before 2015 do not support bi-colored LED’s)
• Up Arrow – Momentary push UP 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. UP Arrow button
tunes the frequency up one increment while tuning to a new station, when held for three
seconds it tunes faster at 1.5x speed. UP selects next stored preset station in PRESETS mode
(no faster mode, one push per preset). Selects next item in other menus and is used for other
functions as described herein. Holding the UP arrow while powering the unit on will restore
factory settings.
• 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,
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M4FM User Manual
when held for three seconds it tunes faster at 1.5x speed. Down selects next stored preset
station in PRESETS mode (no faster mode, one push per preset). Selects next item in other
menus and is used for other functions as described herein.
• Center Button – Used to enter SELECTION MODE and to confirm and save that selection;
Press and hold for 3 seconds to enter SYSTEM MENU. Press and hold for 3 seconds to exit
SYSTEM MENU.
• Reset Button – Using a paper clip 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 or monitor that has a 3.5mm stereo mini-jack
connection. Volume control is software based, from the home screen by pressing either arrow
button UP/DN to enter the volume control. Press ENTER to exit and save the desired volume.
Rear Panel
Figure 2.
• RF Input F-Type 75 ohm - FM: -55 dBm Nominal: -20 dBm Maximum
• Analog Audio Outputs – Left/Right Balanced XLR - +4 dBm into 600 ohm at 100% modulation
• Digital Audio Output – AES-3 Professional, 110Ω transformer-isolated on XLR connector; 0
dBFS <0.005% THD+N
• FM Composite Output – Frequency Response <+/- 0.25dB, Total Harmonic Distortion (IEEE
185) <0.1%, IMD (SMPTE) <0.1%, SNR (IEEE 185) < 75 dB for decoding
• GPI – The PLM provides six dry, floating relays with outputs on a rear panel mounted DB15
connector to report selected alarm conditions, including loss of RF carrier, program audio, Over
Modulation, HD Lock and Multicast Loss. See the PIN out chart for details on page 14 under
‘ALARMS’.
• The M4FM Ethernet Port offers the use of DaySequerra’s Webserver by connecting the M4FM
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. The Ethernet port with the aid of the webserver will keep the
M4FM up to date on all Firmware upgrades by checking, downloading and installing with the
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click of the ‘Check Firmware’ button on the webserver. (A network Internet connection must be
available to successfully upgrade the firmware.)
• AC Power - Auto-sensing 85-264VAC, 47-63Hz input.
• The Power (Rocker) switch is located on the rear panel of the M4FM; when switched on the unit
model number will be displayed on the LCD.
LCD HomeScreen
4
1
2
3
Figure 3.
1. Tuner Frequency – Selects manual FM tuning with UP and DN controls. Press the center
button once to bring up the 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 to be tuned. Press the center button again to exit
or wait 15 seconds for it to timeout.
2. Station Call Letters – Displays the station call letters with the Band. (Read-only)
3. IP & RDS/RBDS Data – Toggles between a static IP address and decoded RDS/RBDS data for
display on the bottom of the LCD. This field also displays active alarm details, which override IP
and RDS/RBDS data.
4. RF Indicator – Horizontal strength bars are displayed indicating the RF strength. (Read-only)
5. BAND/PRESET – FM Band indicator; 50 FM stations are available to be stored. To store a
station as a preset hold the center button for 3 seconds while tuned to the desired station. The
next available preset will start flashing in place of FM. Example F-01. While flashing the arrow
buttons can navigate to any of the already saved preset to be overwritten.
6. ST/Mono – Indicator displaying a Stereo or Mono signal that M4FM has locked on to. Selecting
Mono while locked on to Mono will force the M4FM to Mono.
7. Modulation - enters a submenu displaying measurements for Audio, Demodulation, and
Subcarriers. More information on Modulation on the next page.
5
6
7
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Modulation Measurements
A series of read-only submenus displaying audio, demodulation and subcarrier measurements. 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 home screen. (Graphical representations of these are available in the
meters of the webserver)
Figure 4.
Audio
Figure 5.
Integer values for Left, Right, Left + Right and Left – Right are displayed in dB. This is a read-only
submenu.
Figure 6.
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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.
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Audio Muting - The M4FM’s audio output can be set to automatically mute for received signals
with signal strength less than 45dBf.
Alarms
Program Loss Monitor – Enabling any alarm will disable tuning, presets and band selection from the
WebServer and M4FM box User interface.
Program Loss Monitor (PLM) Connections – The PLM provides four dry, floating relays with outputs
on a rear panel mounted DB15 connector to report selected alarm conditions, including loss of RF
carrier, audio loss, pilot preset, over modulation. Opto-isolated inputs will be triggered by a voltage of
5VDC. The GPIO Alarm output relays are Normally Open and will close when an alarm is active. See
figure 9 for the DB15 pin-outs:
Alarm Loss of: No Contact Common
Audio 5 10
RF Carrier 4 9
Pilot Present 3 8
Over Modulation 2 7
Empty 1 6
Empty 11 12
Reset 14 15
Pins not used – 13
Figure 10.
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. “LOW” option sets RF carrier loss threshold for approximately 10µV (25dBf);
“MED” option sets RF carrier loss threshold for approximately 100µV (45dBf); and “HIGH” option sets
RF carrier loss threshold for approximately 3KµV (75dBf).
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Threshold: Low, Medium or High. (Default – low)
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.
Pilot Preset - Pilot Present alarm is factory set to alarm for a 19kHz pilot injection level
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.
Audio Loss - Silence Detect
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
Audio Loss menu. “LOW” option sets audio loss threshold for approximately -60dB; “MED” option sets
audio loss threshold for approximately -40dB; and “HIGH” option sets audio loss threshold for
approximately -20dB.
Threshold: Low, Medium or High. (Default – low)
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.
Over Modulation - The Carrier Over Modulation alarm is factory set to alarm for a level over 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 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.
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M4FM User Manual
Relay Output
Customizes a specific alarm to each of the six relay outputs on the DB-15. See figure 9. for the DB-15
pin-out
• Output 1 – Audio Loss, RF Carrier Loss, Pilot Present, Over Modulation, Empty. Default: Audio
Loss
• Output 2 – Audio Loss, RF Carrier Loss, Pilot Present, Over Modulation, Empty. Default: RF
Carrier Loss
• Output 3 – Audio Loss, RF Carrier Loss, Pilot Present, Over Modulation, Empty. Default: Pilot
Present
• Output 4 – Audio Loss, RF Carrier Loss, Pilot Present, Over Modulation, Empty. Default: Over
Modulation
• Output 5 – Audio Loss, RF Carrier Loss, Pilot Present, Over Modulation, Empty. Default:
Empty
• Output 6 – Audio Loss, RF Carrier Loss, Pilot Present, Over Modulation, Empty. Default:
Empty
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. 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 ENTER to save and exit to the
previous Alarm menu
FM De-Emphasis
Switch between 75µsec and 50µsec. M4FM is set to 75µsec by default. Press ENTER after making a
selection to save and EXIT to the previous menu. (Figure 12)
Figure 12.
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Region
Figure 13.
M4FM supports 100 KHz or 200 KHz tune spacing for US and Euro. (Illustrated in figure 13.) The
factory default is set to US, 200 KHz. Press ENTER after making a selection to save and EXIT to the
previous menu
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.
Network
A Read-Only menu that displays the 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
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M4FM User Manual
Figure 15.
DHCP is set to ‘ON’ by default. Disabling DHCP allows the users to manually enter an IP, Subnet and
Gateway. Exiting this menu will save and reset the M4FM if a change has been made to DHCP. The
new manual IP address will be displayed on the LCD homescreen
Enter selection mode and toggle the arrow to IP, Subnet or Gateway and press the ENTER button
once. The first field (3 digits) will start to flash. Use the arrow buttons to change up or down within the
allowed range. Press ENTER after each field to save and move to the next field. Pressing ENTER
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.
Exit
Located at the top right corner of the Alarm menu is used to exit back to the previous SYSTEM menu.
From Alarms menu press the UP arrow button until the arrow is to the right of EXIT on the LCD then
press ENTER to exit.
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WebServer
Provides full access to the M4FM 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 and open a web browser. Type the
IP address of the M4FM in the URL to open the WebServer.
Five tabs are displayed at the top of the WebServer window – M4FM, Meters, Alarms, Network, and
System
Tuner – The main tab that controls Frequency Tuning displayed in a large font, station call letters and
ST indicator when the tuner is locked onto a Stereo signal along with 25 FM Presets. Current alarm
status is displayed at the top right corner indicated when any of the set alarms become active.
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 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 can be accomplished by
clicking on the Reset button at the bottom of this tab. The most recent M4FM user manual is also
available for download by checking its box.
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M4FM User Manual
Tuner Tab
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. RF Level and SNR – Displays the amount of RF strength from the tuned frequency; SNR – Displays
READ-ONLY signal to noise ratio express in dB
3. Webserver Status - READ-ONLY message field that displays the active status of the web browser
4. Alarm Status window – Indicator displaying any active alarms in a bold red font.
5. Preset selection - 25 slots for FM stations are available to be stored. Holding a preset buttons for
more than 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 Alarms are enabled.
6. RDS/RBDS data window – RDS/RBDS data will scroll when available. RBDS scrolls the PI (Call
Letters), PS (Program Service), PTY (Program Type) and RT (Radio Text). Any active alarm
condition will override this data.
1
2 3
4
5
6
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Meters Tab
Figure 18.
1. Audio Measurements (Bargraph) – displays Left, Right, Left + Right and Left – Right channels
in dB. Integer values of these measurements are available in the M4FM’s meters submenu.
2. Carrier Measurements (Bargraph) – displaying Positive, Negative and Total Positive +
Negative in percent. Integer values of these measurements are available in the M4FM’s meters
submenu.
3. Subcarrier Measurements (Integer) – displaying Pilot, 57 KHz, 67 KHz, and 92 KHz levels in
percent
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M4FM User Manual
Alarms Tab
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.
The M4FM box user interface will display the exact state of the alarm under ‘Status’ Enable = Alarm
ON, Disable = Alarm OFF.
Enabling any one alarm will disable tuning. Disable ‘Alarms Lock Tuning’ from the ‘Other Settings’
section of the webservers SYSTEM tab to turn this feature off. By default the Alarms Lock Tuning is
enabled.
2. Alarm Status – READ-ONLY window that displays the real-time status for each of the set alarms.
3. Program Loss Relay Outputs – configures the M4FM 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.
2.
3.
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Network Tab
1.
2.
Figure 20.
1. Network Settings – Enables and disables DHCP. Enabling DHCP allows the DHCP router to
chose an IP address for the M4FM and auto-populate the subnet and gateway. The tuners
MAC is READ-ONLY and cannot be changed. Disabling DHCP allows the user to manually
enter the IP address, Subnet, and Gateway. Select SAVE to store the settings. The settings
are not set until saved.
2. Private FTP Settings – Enables and disables the use of a private FTP site to store firmware
updates. Enabling this feature will direct the M4FM to the host IP provided by the user when
checking for firmware updates. Select SAVE after entering the Host IP, User name, Password,
and Port #. The settings are not set until saved.
3. Email Notifications – Enables and disables emails sent out when alarm conditions are active.
To enable enter SMTP IP, Port #, User name, Password, Sender email address, and receiver
email address. Select SAVE to save the settings and activate. Settings are not set until saved.
Select TEST to verify that the settings have been entered properly and emails are
sent/received. *Password is case sensitive alphanumeric. No spaces or symbols may be used.
SSL encrypted logins are currently unavailable – coming soon in a future firmware release.
3.
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M4FM User Manual
System Tab
1.
2.
3.
Figure 21.
1. Network Time – M4FM 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’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. De-Emphasis - Switch between 75µsec and 50µsec. M4FM is set to 75µsec by default.
Press ENTER after making a selection to save and EXIT to the previous menu.
d. Region – Sets the tune spacing to 100 kHz for Euro or 200 kHz for US. Default setting
is set to US.
e. Alarms lock tuning – Enables and disable front panel and webserver tuning while
alarms are set.
f. 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
4.
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!!!!!!!!!!!!!!M4FM User Manual
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. Check for update - Check for Update’ when selected will search for a more recent
version of firmware if available. A pop-up window will tell the user if the Firmware is
current or an update is available. If an update is available the firmware will be
automatically downloaded. Once the download is complete the M4FM will automatically
power cycle to complete the update. Refreshing the web browser is recommended after
an update. The new Firmware version, Build number, and build date will be displayed in
the ‘ABOUT’ window of the Settings tab and also in the About menu of the M4FM Box
User Interface. At this time ‘Firmware Upgrade’ does not automatically check for
updates so it is recommended to manually check periodically.
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 iteration behind the
current). The current and previous firmware versions are always available for download.
d. Update DSP only - downloads and updates the most recent firmware version for the
DSP without disturbing the system firmware.
e. Reset Unit – Performs a soft reboot of the unit. This does not restore factory defaults.
The last state of the machine will be returned.
f. Download user manual – The most recent version of the M4FM user manual in PDF
format is available at all times by clicking ‘Download’.
g. Lock front panel - Disables the front panel locking it out from changes by unwanted
users.
4. About
Read-only menu that displays the Box ID, Serial Number, Firmware Version, Build Number, and
Build Date.
Restore Factory Settings
To restore your M4FM unit back to the original factory settings hold the UP arrow button in for 3
seconds while applying power to the unit. Release the UP arrow button once the power is restored to
the unit. The original factory default settings will then be restored.
Warning: Restoring the tuner to the original factory defaults will erase all settings and presets and
cannot be reversed. Copy any settings and presets before restoring the tuner.
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M4FM User Manual
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. Call
DaySequerra at (856) 719-9900 to receive the number to display on the outside of your shipping carton.
A written statement with the name, address, and daytime telephone number of the original owner,
together with receipt from the original purchase, and a brief description of any claimed defects, must
accompany all returns. Parts or product for which replacement is made shall become the property of
DaySequerra. The customer shall be responsible for all costs of transportation and insurance to and
from the DaySequerra factory, and all such costs will be prepaid.
DaySequerra shall use reasonable efforts to repair or replace any product covered by this limited
warranty within thirty days of receipt. In the event repair or replacement shall require more than thirty
days, DaySequerra shall notify the customer accordingly. DaySequerra reserves the right to replace
any product that has been discontinued from its product line with a new product of comparable value
and function.
This warranty shall 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 installation or maintenance, alteration, or lightning, power fluctuations and other
incidental or environmental conditions. Further, product malfunction or deterioration due to normal
wear is not covered by this warranty.
DAY SEQUERRA DISCLAIMS ANY WARRANTIES, EXPRESSED OR IMPLIED, WHETHER OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE, EXCEPT AS EXPRESSLY SET FORTH
HEREIN. THE SOLE OBLIGATION OF DAY SEQUERRA UNDER THIS LIMITED WARRANTY SHALL BE TO
REPAIR OR REPLACE THE COVERED PRODUCT, IN ACCORDANCE WITH THE TERMS SET FORTH
HEREIN. DAY SEQUERRA EXPRESSLY DISCLAIMS ANY LOST PROFITS, GENERAL, SPECIAL, INDIRECT
OR CONSEQUENTIAL DAMAGES WHICH MAY RESULT FROM BREACH OF ANY WARRANTY, OR
ARISING OUT OF THE USE OR INABILITY TO USE ANY DAY SEQUERRA PRODUCT.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitation
on how long an implied warranty lasts, so the above limitations and exclusions may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to
state. DaySequerra reserves the right to modify or discontinue, without prior notice to you, any model
or style product. If warranty problems arise, or if you need assistance in using your product contact:
DaySequerra
154 Cooper Road, Building 902
West Berlin, NJ 08091
856-719-9900 (phone)
856-719-9903 (fax)
For more information, please visit www.daysequerra.com or email us at support@daysequerra.com.
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