DaySequerra M4FM User Manual

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: [e-mail].

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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!!!!!!!!!!!!!!M4FM User Manual

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.