13
M4DDC User Manual
Status
•
Alarms
– Red LED illuminates when an alarm is enabled and flashes red every second when
an alarm condition is active.
•
Time Lock
– Green LED illuminates when the TimeLock
TM
Correction function is enabled on
the TimeLock
TM
tab of the webserver. Disabling this function on the webserver will not align
HD-1 and MPS streams.
•
HD Locked
– Blue LED illuminates when tuner has acquired OFDM (orthogonal frequency
division multiplexing) portion of an HD Radio
TM
signal and digital carrier S/N > 58dB/Hz, thereby
permitting HD Radio
TM
digital audio to be valid. HD is displayed in upper right hand corner of
VFD when tuner has acquired OFDM portion of an HD Radio
TM
signal.
•
Level Lock–
Green LED illuminates when the Level-Lock Correction function is enabled on
the TimeLock
TM
tab of the webserver. The average audio loudness between the HD Radio
TM
MPS analog and HD-1 digital audio streams are then corrected to within 1 dB.
Buttons
•
Up / Down Arrows
– Momentary push UP / DOWN from the Main HomeScreen to toggle
each homescreen starting with the Network menu followed by the Headphone Volume, LCD
Contrast, and About menus. Both arrows are used to increase and decrease tuning, volume,
contrast, or change any dynamic field found in the user interface.
•
Center Button
– Used to enter SELECTION MODE and Confirm / Save any changed field.
•
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 menu. Press ENTER to exit and save the desired volume. Headphone output is full time SPLIT
mode (HD-1 in left ear; MPS in right ear).
