DaySequerra M2A-FM Manuale utente

M2A-FM

Analog FM

Modulation Monitor

User Manual

®Ready

2 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: [email protected].

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

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

| | |

M2A-FM User Manual

Table of Contents

Important Safety Information 4

ServiceInformation 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

All logos and trademark used herein are the property of their respective owners.

Specifications subject to change.

M2A-FM Revision D.

M2A-FM - Features

•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 ReadyTM architecture provides factory upgrade path

4 M2A-FM 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 M2A-FM to an uninterruptible power supply (UPS) to

provide other protection against power surges and brownouts.

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

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.

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 TM meaning it can be fully upgraded to provide complete HD Radio

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.

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

6 M2A-FM User Manual

M2A-FM Technical Specifications

RF TUNING RANGE 87.9MHz to 108.1MHz in US 200kHz spacing (Export

version has 100kHz spacing.)

FM DE-EMPHASIS 75µsec (Export version has 50µsec de-emphasis.)

RF USEABLE SENSITIVITY 15dBf for -30dB SNR referenced to 100% modulation

IF REJECTION > 100dB for -30dB SNR

AF BANDWIDTH +1dB 20Hz to 18kHz

AF THD+N < 0.2% @100% modulation

STEREO CHANNEL SEPARATION 50dB off air - typical

RBDS DATA DISPLAY PI (Program Identification-station call sign) and RT (Radio

Text) fields

CARRIER METER Positive peaks only, negative peaks only or both

simultaneously; 1% resolution between 120 and 80%, 2%

resolution between 80 and 46%; Measurement integration

time is user programmable - 0.1ms, 0.2ms, 0.5ms or 1.0ms

DEMODULATED AUDIO METER Left & Right, L+R or L-R, peak responding between

+10dB and -30dB, average responding between -30dB and

-64dB; peak-type measurements of injection level for

19kHz pilot, 67 and 92kHz subcarriers and incidental AM

noise

Unpacking and Installing the M2A-FM

Immediately upon receiving your M2A-FM, 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 M2A-FM is shipped in one carton, which contains: the M2A-FM unit, an AC power cable, a

TorxTM T-8 L-key and this User Manual.

We strongly encourage you to save the shipping carton and shipping materials supplied with your

M2A-FM. They are specially designed to properly protect your M2A-FM, 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 M2A-FM chassis has four rack mounting holes in its chassis and has been

designed to fit in a 19” standard 2RU space. Plastic ‘finishing’ washers are recommended to protect the

painted finish around the mounting holes.

Power Connection. The AC power cable supplied with the M2A-FM must be connected from the M2A-

FM’s IEC320 power entry module to an AC mains outlet with a functional earth ground connection. The

M2A-FM User Manual

M2A-FM has been set at the factory to operate at 120VAC unless otherwise specified on the shipping

carton. The M2A-FM export version is configured for 240VAC operation. Please connect your M2A-FM to

an uninterruptible power supply (UPS) to protect against power surges and brownouts.

Antenna Input Connections. 75ohm F-type connector is provided on the M2A-FM rear panel for an FM

antenna. Rear panel switch selects for antenna or high-level sample port inputs (7VP-P max).

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 M2A-FM digital audio output is 5.1

surround capable.

M2A-FM Operating Description - Controls and Indicators

Power-up and Standby. The Power switch is located on the rear panel of the M2A-FM; when switched on

the hardware and software version of your M2A-FM will be displayed for 3 seconds on the M2A’s VFD.

In any mode, if the SELECT and DN switches are depressed simultaneously for 5 seconds, monitor goes

into Standby mode with all front panel controls and indicators blanked except for SELECT and UP switches;

the M2A’s VFD then indicates the “DaySequerra Standby” message. Holding SELECT together with UP

switch in for 5 seconds when in this Standby mode reactivates all front panel controls and indicators and

returns monitor to normal operation.

TUNER BAND – The front panel TUNER BAND switch selects manual FM tuning controlled by UP and DN

controls. Holding switch in for 5 seconds forces monitor into Forced Mono mode; MONO is displayed on 2nd

line of VFD. Blue arrow LED illuminates when mode is active. Holding on startup allows you to select

between 100kHz and 200kHz tuning and 75 and 50 uS de-emphasis.

PRESETS – The M2A-FM has capability to recall 20 preset or stored FM stations using the front panel

PRESETS switch. Blue arrow LED illuminates when monitor is in PRESETS mode. UP and DN controls

scroll through stored stations. Preset stations are stored for recall in positions F1 through F20. PRESETS

Arrow LED illuminates when monitor is in PRESETS tuning mode.

When the M2A-FM has acquired any station in TUNER BAND mode and the SELECT switch is held for 5

seconds, monitor enters PRESETS store mode and PRESETS arrow LED flashes. UP and DN controls then

allow user to scroll through F1 through F20. When the desired preset location is indicated on VFD, next

momentary push of SELECT switch stores selected station in that PRESETS position.

UP and DN – For manual FM tuning in TUNER BAND mode and scrolling through PRESETS in PRESETS

mode.

SELECT – Multi-function switch for storing PRESETS and controlling other monitor functions, as described

below.

ALARM SET – Momentarily pressing the front panel ALARM SET switch activates the Alarm Configuration

Menu. VFD displays ALARM CONFIG with “ENABLE” and “SETUP” options. Select desired option using UP

and DN switches to toggle the setting. Select “ENABLE” to arm all alarms as configured and exit Alarm

Configuration Menu; select “SETUP” to continue with alarm configuration menu. Exit the Alarm Configuration

Menu at any time by pressing ALARM SET switch.

A L A R M C O N F I G

E N A B L E > S E T U P <

8 M2A-FM User Manual

All Alarms

•Select “ON” to activate all alarms at the minimum threshold with the minimum alarm

delay. Select “OFF” to set all alarms to off; select “SETUP” option to continue with alarm

configuration menu. Use UP and DN switches to toggle the setting.

Push “SELECT” switch to increment the menu to the next alarm function.

A L L A L A R M S

O N O F F > S E T U P <

Alarm Output 1 – RF Carrier Loss (alarm based on analog RF signal strength)

•Highlight desired “SET” or “OFF” option using UP and DN switches to toggle the setting.

Select “SET” to set this alarm and continue with alarm configuration menu; select “OFF”

to set this alarm function to off. Push “SELECT” to continue.

R F C A R R I E R L O S S

> S E T < O F F

•If “SET” is selected, submenu for “Level” threshold with “LOW”, “MED” and “HIGH”

options is displayed next. “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). Use UP and DN switches to toggle the setting and highlight the desired option.

R F C A R R I E R L E V E L

L O W > M E D < H I G H

Push “SELECT” switch to increment the menu to the next alarm function.

•Submenu for “Alarm Delay” with “30”, “60”, “120” and “240” second options is displayed

next. Use UP and DN switches to toggle the setting and highlight the desired option.

A L A R M D E L A Y

3 0 > 6 0 < 1 2 0 2 4 0 S

Push “SELECT” switch to increment the menu to the next alarm function.

M2A-FM User Manual

Alarm Output 2 – Audio Loss (Silence Detect)

•Highlight desired “SET” or “OFF” option using UP and DN switches to toggle the setting.

Select “SET” to set this alarm and continue with alarm configuration menu; select “OFF”

to set this alarm function to off. Push “SELECT” to continue.

A U D I O L O S S

> S E T < O F F

•If “SET” is selected, submenu for “Level” threshold with “LOW”, “MED” and “HIGH”

options is displayed next. “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. Use UP and DN switches to

toggle the setting and highlight the desired option. Push “SELECT” switch to continue.

A U D I O L E V E L

L O W > M E D < H I G H

•Submenu for “Alarm Delay” with “30”, “60”, “120” and “240” second options is displayed

next. Use UP and DN switches to toggle the setting and highlight the desired option.

A L A R M D E L A Y

3 0 > 6 0 < 1 2 0 2 4 0 S

Push “SELECT” switch to save and increment the menu to the next alarm function.

Alarm Output 3 – Audio Peak

•Audio Peak alarm is factory set to alarm for an audio output average greater than +3dB

over-modulation for more than 30 seconds. Highlight desired “SET” or “OFF” option

using UP and DN switches to toggle the setting. Select “SET” to set this alarm and

continue with alarm configuration menu; select “OFF” to set this alarm function to off.

Push “SELECT” to continue.

A U D I O P E A K

> S E T < O F F

10 M2A-FM User Manual

•If “SET” is selected, submenu for “Alarm Delay” with “30”, “60”, “120” and “240” second

options is displayed next. Use UP and DN switches to toggle the setting and highlight the

desired option.

A L A R M D E L A Y

3 0 > 6 0 < 1 2 0 2 4 0 S

Push “SELECT” switch to save and increment the menu to the next alarm function.

Alarm Output 4 – Pilot Present

•Pilot Present alarm is factory set to alarm for a 19kHz pilot injection level of less than 2%.

Highlight desired “SET” or “OFF” option using UP and DN switches to toggle the setting.

Select “SET” to set this alarm and continue with alarm configuration menu; select “OFF”

to set this alarm function to off. Push “SELECT” to continue.

P I L O T P R E S E N T

> S E T < O F F

•If “SET” is selected, submenu for “Alarm Delay” with “30”, “60”, “120” and “240” second

options is displayed next. Use UP and DN switches to toggle the setting and highlight the

desired option.

A L A R M D E L A Y

3 0 > 6 0 < 1 2 0 2 4 0 S

Push “SELECT” switch to save and increment the menu to the next alarm function.

Alarm Output 5 – RBDS Data Loss

•RBDS Data Loss alarm is factory set to activate based on data in Radio Text field.

Highlight desired “SET” or “OFF” option using UP and DN switches to toggle the setting.

Select “SET” to set this alarm and continue with alarm configuration menu; select “OFF”

to set this alarm function to off. Push “SELECT” to continue.

R B D S D A T A L O S S

> S E T < O F F

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