DaySequerra M2A-FM User Manual

Analog FM

Modulation Monitor

®

Ready

M2A-FM

User Manual

Welcome

Thanks for purchasing the DaySequerra M2A-FM Analog 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 M2A-FM 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 M2A-FM, 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 M2A-FM monitor 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

2

Day Sequerra 154 Cooper Rd. S902 W. Berlin, NJ 08091 Voice 856-719-9900 [e-mail] www.daysequerra.com

M2A-FM User Manual

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Table of Contents

Important Safety Information 4
Service Information 4
Introduction 4
M2A-FM Key Features 5
M2A-FM Technical Specifications 6
Unpacking and Installing 6
Operating Description - Controls and Indicators 7
Alarm Configuration 7
SCA and AM Measurements 13
Alarm Connections 15
Ethernet Port Option 15
One Year Warranty 16

• Brilliant, accurate bargraph metering of analog programming

• Multi-function vacuum florescent display (VFD) shows decoded RBDS

• Precision metering of FM Pilot and SCA injection levels

• MPX output lets you connect external SCA demodulators

• Six dry contact alarm relay outputs for loss of audio program, carrier, pilot and

RBDS as well as audio peak, all with flexible settings for level and duration

• HD Radio Ready

TM

M2A-FM - Features

architecture provides factory upgrade path

All rights reserved DaySequerra Corp. Copyright 2011.
All logos and trademark used herein are the property of their respective owners.
Specifications subject to change.

M2A-FM Revision D.

M2A-FM User Manual

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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 +

• 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 M2A-FM to an uninterruptible power supply (UPS) to
provide other protection against power surges and brownouts.

10% of the nominal voltage

Service Information

The DaySequerra M2A-FM 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 M2A-FM so we can keep you informed of the latest hardware and software
updates.

Introduction

The DaySequerra M2A-FM is the world’s best analog FM monitor complete with world-wide tuning and
de-emphasis settings. The M2A-FM measures your analog signal with digital accuracy, insuring that
readings will remain stable and reliable over time. Selectable measurement integration times let you
control peak reading for maximum modulation.

The M2A-FM includes a sensitive yet selective synthesized FM pre-selector with 20 presets so you can
quickly monitor other stations off the air. A high level input with built-in attenuator lets you connect
directly to a forward power RF port for greatest accuracy. RBDS Program Identification (PI) and Radio
Text (RT) fields are decoded and shown on the M2A’s Vacuum Florescent Display (VFD).

The M2A’s brilliant LED meters can be read from across the room. The upper meters measure stereo,
L+R, L-R and incidental AM noise. The lower meter measures positive and negative carrier deviation,
as well as pilot and SCA injection levels. 57kHz RBDS subcarriers can be accurately read to a
minimum level of 2.6 percent. An MPX output lets you connect external SCA demodulators.

The M2A-FM comes complete with six dry contact alarm relay outputs for loss of audio program,
carrier, pilot and RBDS as well as audio peak and over modulation, all with flexible settings for level
and duration.

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M2A-FM User Manual

In addition to its accuracy and features, the M2A-FM gives you audiophile grade Class-A biased audio
outputs, so you can precisely monitor and adjust your processing. In addition to L and R analog
outputs, the M2A-FM has a full-time digital output, so you can feed your AES monitoring chain, and a
front panel headphone jack powered for uncompromised, full-quality audio.

The optional Ethernet Remote Control package comes bundled with DaySequerra’s Remote
Dashboard™ software, a proprietary PC-based application that gives you 100 station scanning, remote
control monitoring, logging and alarms with E-mail alarm notification.

Your M2A-FM is HD Radio Ready
capability. With our Factory Product Upgrade program you can be sure that your investment in a
DaySequerra product will continue to pay off well into the future. Visit www.daysequerra.com for
details.

Please read this manual thoroughly before operating your M2A-FM.

TM

meaning it can be fully upgraded to provide complete HD Radio

M2A-FM Key Features

FM ANTENNA INPUT – Industry standard 75-ohm “F” connector
FM HIGH LEVEL INPUT – Industry standard 50-ohm “BNC” connector; 7VAC Pk-Pk maximum
ANTENNA - HIGH LEVEL INPUT SELECT – User selected for antenna or high-level input
STEREO ANALOG OUTPUTS – Balanced (+4dBm) for 100% analog modulation
DIGITAL AUDIO OUTPUT – 110-ohm transformer isolated for all broadcasts
IEC320 POWER INLET – 120VAC with integrated fuse holder on rear panel (Export version is

configured for 240VAC input.)

SYNTHESIZED, PUSHBUTTON TUNING and PRESETS – 20 preset stations
DEMODULATED AUDIO LEVEL METERS – Displays Left and Right or L+R and L–R demodulated

audio between +10dB and –64dB Factory preset to display de-emphasized program audio
CARRIER LEVEL METER – Displays positive or negative peaks, or both simultaneously from 46% to
125% with a user programmable measurement integration time Factory preset for 100µSec

AUDIO PEAK LED – Flasher indicates analog program audio peak condition
ALARM LED – Indicates active alarm condition
HEADPHONE OUTPUT – Screwdriver gain control on front panel
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

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