ECRESO FM 5kW / 10kW, user manual
–
11/2021
Page 67
WorldCast Systems SAS - 20 avenue Neil Armstrong - 33700 Mérignac (Bordeaux Métropole) FRANCE
+33 (0)5 57 928 928
–
www.worldcastsystems.com
–
contact@worldcastsystems.com
Interaction between the various components according to the input type:
In all cases described below, the transmitter configuration is as follows:
Audio = 67.5 kHz
Pilot = 7.5 kHz
RDS = 4.0 kHz.
In the case of audio inputs (analog or AES), the set MPX represents the total of audio, pilot and RDS. If the RDS is
disabled, the audio is automatically adjusted with +4 kHz.
Ex 1: set
MPX = 75 kHz
Pilot = 7.5 kHz
RDS = 4.0 kHz.
If the RDS is enabled:
Audio = 63.5 kHz
Pilot = 7.5 kHz
RDS = 4.0 kHz
If the RDS is disabled:
Audio = 63.5 + 4 = 67.5 kHz
Pilot = 7.5 kHz
In the case of MPX inputs, if the RDS is disabled,
the audio cannot be adjusted
.
Ex 2: inject stereo MPX + RDS with:
Audio = 63.5 kHz
Pilot = 7.5 kHz
RDS = 4.0 kHz.
If the RDS is disabled:
Audio = 63.5 kHz
Pilot = 7.5 kHz
RDS on the MPX input:
Audio = 63.5 kHz
Pilot = 7.5 kHz
RDS = 4.0 kHz
With internal RDS:
Audio = 63.5 kHz
Pilot = 7.5 kHz
RDS = 4.0 kHz
Ex 3: inject stereo MPX with:
Audio = 67.5 kHz
Pilot = 7.5 kHz
If the RDS is disabled:
Audio = 67.5 kHz
Pilot = 7.5 kHz
With internal RDS:
Audio = 67.5 kHz
Pilot = 7.5 kHz
RDS = 4.0 kHz
!
The total modulation 67.5+7.5+4.0 = 79 kHz is too high!
