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Introducing the M4.2S. DaySequerra's new M4.2S is the most powerful analog AM/FM and HD Radio® AM/FM tuner available today, and it’s an incredibly cost-effective solution.

DaySequerra's new M4.2Si AM-FM Digital Radio Receiver is the most capable next-generation HD
Radio™ platform available today.
With the M4.2Si you can monitor audio and data from your analog and HD Radio broadcasts including
FM multicast channels HD-2 through HD-8. The M4.2Si has no AUTO-Blend function so it stays locked
to the stream you've selected even if the broadcast or your AC power is interrupted. Hear your HD
Radio time-alignment using the M4.2Si built-in Split-Mode. With the optional TimeLock™ Monitor, the
M4.2Si will even send an email if your MPS and HD-1 streams are out of time-alignment. The Remote
Dashboard webserver simplifies your under 3-minute setup and provides total remote control of the
M4.2Si using any browser on your Ethernet network. Plug and Play

  • Stays Locked – Proprietary StreamLock technology make sure the M4.2S stays locked to the stream you've selected - AM-FM analog, AM-FM HD Radio MPS or HD-1 through HD-8, even if the broadcast or your AC power is interrupted; does not automatically revert to analog!
  • Analog AM-FM plus HD Radio – Complete monitoring of HD Radio AM/FM broadcasts including FM multicast channels HD-2 through HD-8: user-selectable tuning steps and analog FM 50/75 µSec de-emphasis.
  • Time-Alignment – Monitor your HD Radio HD-1/MPS diversity delay using the built-in Split-Mode feature.
  • Bright graphic LCD – provides front panel display of all RBDS and HD Radio PAD/SIS, along with network and alarm conditions; audio level, digital audio quality and carrier quality indications.
  • Artist Experience – monitor your broadcast's album art, station logo and advertiser branding.
  • Email Alerts – Get an email alert direct from your M4.2S TimeLock for loss of TimeLock, Program Audio, Carrier, or OFDM HD Radio Lock; 5 rear panel alarm tallies.
  • Built-in Webserver – Remote Dashboard webserver for remote control and logging using any browser on your Ethernet network; 50 presets per band; Artist Experience displays album art, station logo, and advertiser branding; remote Flash upgrades; password protected access.
  • Powerful Audio Outputs – XLR balanced analog outputs +4 dBm @ 100% modulation; high-performance headphone monitor delivering greater than 1W into 8-ohm
  • Front Panel Lockout – Prevents unauthorized settings changes.
  • Optional TimeLock™ – Upgrade your M4.2S to measure HD Radio Diversity Delay time alignment of the HD Radio MPS and HD-1 audio streams with accuracy to one audio sample, includes TimeLock rear panel alarm tally and email alert.

Additional information

Weight 5.4 kg
Product can be split into multiple boxes

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specification

RF TUNING RANGE

AM
520 kHz to 1720 kHz (User-selected 9 kHz or 10 kHz increments)

FM
87.9 MHz to 108.1 MHz (User-selected 100 kHz or 200 kHz increments)

RF USABLE SENSITIVITY

AM
< 20 dBf (-100 dBm) for SNR -20 dB referenced to 30% modulation

FM
< 15 dBf (-100 dBm) for SNR -30 dB referenced to 100% modulation

RF INPUT

F-Type
75-ohm connectors

AM-FM
-55 dBm Nominal; -20 dBm Maximum

IF REJECTION

AM
> 100 dB for SNR -20 dB

FM
> 100 dB for SNR -30 dB

IMAGE REJECTION

> 65 dB

FM ALTERNATE CHANNEL SELECTIVITY

> 70 dB

AM ADJACENT CHANNEL SELECTIVITY

> 35 dB

AF BANDWIDTH

AM
±1 dB, 40 Hz to 15 kHz

FM
±1 dB, 20 Hz to 20 kHz

FM DE-EMPHASIS

50 µSEC or 75 µSEC (User-selected)

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

ALARM NOTIFICATION

5-rear panel tallies, front panel indications and email for loss of Audio, Carrier, OFDM HD Radio Lock, Multicast Available and PAD-RBDS

RBDS DATA

PI [Call Letters], PS [Program Service], PTY [Program Type], and RT [Radio Text]

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

AC POWER

Auto-sensing 85-264 VAC, 47-63 Hz input

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

1RU EMI-hardened; 19” (482 mm) W x 14” (3.5M) D x 1.75” (44) H

SHIPPING WEIGHT

12 lbs. [5.4 kg]

WARRANTY

Three years, limited parts and labor

M4.2S RCA OPTION

Unbalanced analog and digital audio outputs on RCA connectors installed in place of standard XLR connectors; order model M4.2S-RCA

features

Stays Locked to Multicast
Remote Control and Reset
Internal Email – no PC required
Analog AM-FM Plus HD Radio
Time-Alignment
Bright graphic LCD
Artist Experience
Email Alerts
Built-in Webserver
Powerful Audio Outputs
Front Panel Lockout
Optional Timelock

  • Stays Locked Proprietary StreamLock technology make sure the M4.2Si stays locked to the stream you’ve
    selected – AM-FM analog, AM-FM HD Radio MPS or HD-1 through HD-8, even if the broadcast or your AC
    power is interrupted; does not automatically revert to analog !
  • Analog AM-FM plus HD Radio Complete monitoring of HD Radio AM/FM broadcasts including FM multicast
    channels HD-2 through HD-8: user-selectable tuning steps and analog FM 50/75 µSec de-emphasis.
  • Time-Alignment Monitor your HD Radio HD-1/MPS diversity delay using the built-in Split-Mode feature.
  • Bright graphic LCD provides front panel display of all RBDS and HD Radio PAD/SIS, along with network and
    alarm conditions; audio level, digital audio quality and carrier quality indications.
  • Built-in Webserver Remote Webserver for remote control and logging using any browser on your Ethernet
    network; 10 presets per band; remote Flash upgrades; password protected access.
  • Powerful Audio Outputs XLR balanced analog outputs +4 dBm @ 100% modulation; high-performance
    headphone monitor delivering greater than 1W into 8-ohm
  • Front Panel Lockout Prevents unauthorized settings changes

Brand

DaySequerra

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M4.2Si Specifications

  • RF TUNING RANGE:AM: 520 kHz to 1720 kHz (User-selected 9 kHz or 10 kHz increments)
  • FM: 87.9 MHz to 108.1 MHz (User-selected 100 kHz or 200 kHz increments)
  • RF USABLE SENSITIVITY:AM: < 20 dBf (-100 dBm) for SNR -20 dB referenced to 30% modulation
  • FM: < 15 dBf (-100 dBm) for SNR -30 dB referenced to 100% modulation
  • RF INPUT:F-Type 75-ohm connectors
  • AM-FM: -55 dBm Nominal; -20 dBm Maximum
  • IF REJECTION:AM: > 100 dB for SNR -20 dB
  • FM: > 100 dB for SNR -30 dB
  • IMAGE REJECTION:> 65 dB
  • FM ALTERNATE CHANNEL SELECTIVITY:> 70 dB
  • AM ADJACENT CHANNEL SELECTIVITY:> 35 dB
  • AF BANDWIDTH:AM: ±1 dB, 40 Hz to 15 kHz
  • FM: ±1 dB, 20 Hz to 20 kHz
  • FM DE-EMPHASIS:50 µSEC or 75 µSEC (User-selected)
  • 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
  • ALARM NOTIFICATION:5-rear panel tallies, front panel indications and email for loss of Audio, Carrier, OFDM HD Radio Lock, Multicast Available and PAD-RBDS
  • RBDS DATA:PI [Call Letters], PS [Program Service], PTY [Program Type], and RT [Radio Text]
  • 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.
  • RDS/RBDS CAPABLE:All tuners are RDS/RBDS capable
  • AC POWER:Auto-sensing 85-264 VAC, 47-63 Hz input
  • 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:1RU EMI-hardened; 19” (482 mm) W x 14” (3.5M) D x 1.75” (44) H
  • SHIPPING WEIGHT:12 lbs. [5.4 kg]
  • WARRANTY:Three years, limited parts and labor
  • M4.2S RCA OPTION:Unbalanced analog and digital audio outputs on RCA connectors installed in place of standard XLR connectors; order model M4.2S-RCA
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STUDIO Receivers / Off-Air Monitors DaySequerra M4.2Si