User Manual

!!!!!!!M4FM-HD User Manual

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 M4FM-

HD 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. The M4FM-HD also provides decoded

RDS/RBDS data.

In addition to its accuracy and features, the M4FM-HD 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-HD 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-HD 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-HD from anywhere in your plant via the M4FM-HD’s integrated

webserver, which is fully compatible with most web browsers and operating systems. The M4FM-HD’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-HD will send alerts to your phone; and you

can reset the M4FM-HD remotely as well.

Your M4FM-HD is HD Radio Ready

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-HD will continue to pay off well into the future.

Please read this manual thoroughly before operating your M4FM-HD.