ECRESO FM 100/300 W, user manual– 06/2015
Page 38
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PRESENCE
(INPUT.MPXn.PRESENCE) – read only
This parameter gives the composition of the signal on the MPXn input.
MO (mono), MO+R (mono+RDS), MO+R+S (mono+RDS+SCA), ST (stereo), ST+R (RDS) ou ST+R+S
(RDS+SCA)
LEVEL
(INPUT.MPXn.LEVEL) – read/write
This parameter is the max audio peak in dBu that can come from the transmitter on the MPX input. For example, if the
audio peak from the source is +6 dBu, this parameter must be set to +6 dBu for optimal operation. If you do not know
the audio source level, you may use an audio analyzer or display first level measurements on the front panel to read
the MPXn LEVEL. Be aware that if the level is poorly set the deviation may become too low or too high. This level is
also called nominal level, i.e. the level producing the deviation as set in the Modulation menu.
From -18 dBu to +18 dBu
DRIVE
(INPUT.MPXn.DRIVE) – read/write
With this parameter, you can slightly compensate the input audio level. It directly affects the final deviation. A
negative value decreases the deviation; a positive value can increase the deviation and/or cause the MPX hard clipper
to be used (if enabled) which in turn may lead to audio distortion. We recommend you leave it at 0 dB.
From -6 dB to +6 dB
RMS
(INPUT.MPXn.RMS) – read only
This parameter indicates the average value of the transmitted signal’s excursion in kHz.
From -150 to +150 kHz
PEAK
(INPUT.MPXn.PEAK) – read only
This parameter indicates the peak value of the transmitted signal’s excursion in kHz.
From -150 to +150 kHz
SAMPLING
(INPUT.LINE1.GET_SAMPLING) – read
This parameter reads the sampling rate in Hz.
From 0 to 200000 Hz
5.8.
Player parameters (audio backup)
These parameters are available as:
Front panel
PLAYER menu
see section 6.3.7
Serial commands
INPUT.PLAYER
see section 7.2.6
Engi PC application
Audio Input page
see section 8.2.2
Embedded web site
Transmitter/Input Source/Audio backup page
see section 9.4.5
They are identical to LINE2 parameters.