User guide

M4.2Si User Manual

Use the UP and DOWN arrows to navigate/toggle through the available choices or range.

DOWN Arrow button tunes the frequency down one increment while tuning to a new station,

when held for three seconds it tunes faster at 1.5x speed. Down selects next stored preset

station in PRESETS mode (no faster mode, one push per preset). Selects next item in other

menus and is used for other functions as described herein.

• Center Button – Used to enter SELECTION MODE and to confirm and save that selection;

Press and hold for 3 seconds to enter SYSTEM MENU. Press and hold for 3 seconds to exit

SYSTEM MENU.

• Reset Button – Using a paper clip press the reset button hidden behind the front panel to the

right of the center button to power cycle the unit while holding all presets and other settings in

memory.

• Headphones - Accepts any headphone or monitor that has a 3.5mm stereo mini-jack

connection. Volume control is software based, from the home screen by pressing either arrow

button UP/DN to enter the volume control. Press ENTER to exit and save the desired volume.

Rear Panel

Figure 2.

• RF Input F-Type 75 ohm - AM-FM: -55 dBm Nominal: -20 dBm Maximum

• Analog Audio Outputs – Left/Right Balanced XLR - +4 dBm into 600 ohm at 100% modulation

• Digital Audio Output – AES-3 Professional, 110Ω transformer-isolated on XLR connector; 0

dBFS <0.005% THD+N using HD Radio™ input

• GPI – The PLM provides six dry, floating relays with outputs on a rear panel mounted DB15

connector to report selected alarm conditions, including loss of RF carrier, program audio,

OFDM lock and PAD data. See the PIN out chart for details under ‘ALARMS’

• The M4.2Si Ethernet Port offers the use of DaySequerra’s Webserver by connecting the M4.2Si

to any networked computer with Internet access. The use of crossover cables can be used in

areas where a network connection is not possible. More information on the Webserver can be

found at the end of this manual. The Ethernet port with the aid of the webserver will keep the

M4.2Si up to date on all Firmware upgrades by checking, downloading and installing with the

click of the ‘Check Firmware’ button on the webserver. (A network internet connection must be

available to successfully upgrade the firmware.)