I/O CALIBRATION AND SYSTEM SETUP
ENG
Page 58
For instance:
Output mode
Limiting threshold
RDS signal not available
+ 0.25 dB
ITUref
Mono signal (no Pilot available)
+1.0 dB
ITUref
Mono signal (no Pilot available) + RDS
+0.75 dB
ITUref
For better results, we recommend to use the Equalization Presets 29 and 30 (labeled as
ITU), as they have been especially designed to keep the output power as much constant as
possible.
As expected result, the power level will always range by less than 0.5 dB
ITU
in respect of
the reference output level and it will never 1 dB
ITU
ceiling. The other Presets will
provide a still ITU-compatible output, but with power output levels reduced by 0.5 dB.
The graphic shows the performance of the MPX limiter over a 33 minute time period:
This test was done using an audio CD. The dips are due to the pauses between the tracks on the CD; those
dips are thus factored into the average of the measurement.
As can be observed on the graphic, the MPX level never exceeds by more than + 0.5 dB the 0 dBu level limit
(this is the reference level that indicates the 19kHz average power deviation level).
Deviation peaks range between 55Khz and 70Khz depending on the aired audio material.
Summary of Contents for Falcon 35
Page 2: ......
