I/O CALIBRATION AND SYSTEM SETUP
ENG
Page 54
19.11 MPX OUTPUT LEVEL (FM VERSION ONLY)*
The MPX signal (+ any internally or externally generated RDS signal or SCA signal) is available on the Bnc
MPX OUT connector. * the MPX module is available as an option
The MPX output may be tuned using the small trimmer located next to the output BNC. In
order to best adjust the output level, we recommend enabling a pilot tone (see paragraph
20.7), which identifies the maximum peak which match the deviation of 75 KHz.
The Peak Tone is a 400-Hz reference tone that identifies the peak value of the mpx signal, which must
match the maximum frequency deviation of 75KHz. In other words, the peak tone identifies an audio level
that will never be exceeded during normal processor operation.
To enable the Peak Reference Tone:
DEFAULT SCREEN
OUTPUT CALIBRATION menu
OUTPUT MODE menu
PEAK REFERENCE TONE
To disable the Peak Reference Tone:
DEFAULT SCREEN
OUTPUT CALIBRATION menu
OUTPUT MODE menu
NORMAL MODE
pre-emphasis on the MPX output can never be turned off. You must therefore cut out any
pre-emphasis from transmitters or transfer links.
We recommend connecting the processor output directly to the transmitter or radio link,
without inserting any other equipment. The factory preset for the overall MPX signal is 0dBu.
Summary of Contents for Falcon 35
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