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DaySequerra M4FM-HD
DSPrecision FM / HD Radio Analog Modulation Monitor


The DaySequerra M4FM-HD is a cost-effective analog FM and HD Radio® FM modulation monitor that uses a state-of-the-art Texas Instruments® DSP...
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List Price: $5,490.00
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DaySequerra M4FM-HD
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The DaySequerra M4FM-HD is a cost-effective analog FM and HD Radio® FM modulation monitor that uses a state-of-the-art Texas Instruments® DSP, which is where all of the M4FM-HD processing takes place in the digital domain.

DaySequerra M4FM-HD Features:

  • Analog FM plus FM-HD Radio –Complete monitoring of HD Radio FM broadcasts including FM multicast channels HD-2 through HD-8: user-selectable 100 or 200kHz tuning steps and analog FM 50/75 µSec de-emphasis.
  • Built-in RF Attenuator –30 dB for wide RF input range of <0.5 vRMS to 7 vRMS.
  • Simultaneous Modulation Measurements– Total, pilot, L, R, L+R and L-R, and all Composite-SCA level measurements with better than 1.0% accuracy shown as integer values on front panel LCD and on Remote Dashboard-Meters tab.
  • Bright graphic LCD – provides front panel display of audio and modulation levels, RBDS and HD Radio PAD/SIS, along with network and alarm conditions; audio level, digital audio quality and carrier quality indications.
  • High-performance Audio Outputs – XLR balanced analog outputs +4 dBm @ 100% modulation; front panel headphone monitor delivering greater than 1W into 8-ohm. Full-time AES3 digital audio output is available, even when tuned to non-HD signals.
  • Powerful Alarm Monitor –Simultaneously monitor for loss of MPS and HD-1 Program Audio as well as loss of:
    • Carrier
    • OFDM HD Radio Lock
    • Artist Experience artwork
    • PSD and SIS data
    • RBDS PS and RT fields
    • Each alarm condition has dedicated user-configured parameters.
  • Email Alerts and Rear Panel Alarm Tallies– Get an email alert direct from your M4FM-HD.
  • Remote reboot –via rear panel GPI.
  • Front Panel Lockout –Prevents unauthorized settings changes.
  • Composite BNC output - for external subcarrier (SCA) decoding and translator applications.
  • M4FM-HD Powerful Remote Dashboard:
    • Built-in Web server – Remote Dashboard with 50 FM presets for remote control and logging using any browser on your Ethernet network
    • Tuner Tab –station PSD and SIS info; digital audio quality and carrier quality indications; alarm indications.
    • Artist Experience -monitor your broadcasts’ album art, station logo and advertisers’ branding.
    • Meters Tab –Total, pilot, L, R, L+R and L-R, and all Composite-SCA level measurements
    • Remote Flash upgrades – tolerant of high-latency networks.
    • Password protectedaccess

DaySequerra M4FM-HD Specifications:

  • Frequency Range: 87.3-108.1 MHz in user-selected 100 or 200 KHz increments
  • RF Input Range: 0.5 vRMS to 7 vRMS on 75-ohm BNC connector
  • Sensitivity: < 30 dBf (-90 dBm) for -50 dB Quieting
  • IF Rejection: FM: > 100 dB for SNR -30 dB
  • Image Rejection: > 65 dB
  • FM Alternate Channel Selectivity: > 70 dB
  • 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
  • Display Accuracy of All Modulation Levels: <±1.0%@ 0% to 100% Modulation  
  • Audio Output:
    • Frequency Response: < ± 0.25 dB, 20 Hz to 20 kHz
    • De-Emphasis: User-Selected 50 or 75 µs
    • THD (IEEE 185): < 0.1%
    • IMD (SMPTE): < 0.1%
    • SNR (IEEE 185): > 75 dB
  • Analog Audio Outputs:
    • Left/Right Balanced XLR connectors
    • +4 dBm into 600 ohm at 100% modulation
  • Digital Audio Output:
    • AES-3 Professional, 110-ohm transformer-isolated on XLR connector
    • 0 dBFS <0.005% THD+N using HD Radio™ input
  • HD Radio™ Hybrid Acquisition: <4.5 seconds
  • HD Radio™ Split-Mode: MPS Left (on R output) and HD-1 Left (on L output) on Analog, Digital and Headphone audio outputs
  • HD Radio™ Pad and SIS Data: SIG, SIS, Extended SIS, AAAS, and LOT; PAD including station long and short name, program type, song file, artist, album, genre and comment fields; Artist Experience - album art, station logo and advertiser branding.
  • RDS/RBDS Data: PI [Call Letters], PS [Program Service], PTY [Program Type], and RT [Radio Text]
    • Note: There are exceptions and special cases on RDS decoding the PI field that vary from country to country. Not all countries are supported in the current release firmware; contact us for more details.
  • Alarm Notification: 5 user-selectable rear paneltallies, front panel indications and email for loss (and stuck data fields where applicable) of  MPS and HD-1 program audio, Artist Experience artwork fields, PSD and SIS fields, RBDS PS and RT fields, Carrier, OFDM HD Radio Lock, Multicast Available.
  • AC Power: Auto-sensing 85-264 VAC, 47-63 Hz input
  • Enivronmental:
    • 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 (WxDxH): 1RU EMI-hardened; 19" x 14" x 1.75" (482 x 356 x 44 mm)
  • Shipping Weight: 10 lbs. (4.5 kg)
  • Warranty: Three years, limited parts and labor

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