Falcon 15 manual In & Out Settings Fm Version, Calibrating The Pilot Level And Phase

IN & OUT SETTINGS (FM VERSION) ENG

1Escape from the Output Level menu and enter the Output Mode menu.

2Select the Peak Reference Tone option.

The Peak Tone identifies the maximum peak value of the audio and MPX signals reached by the processor while it is operating. This peak corresponds to the maximum frequency deviation. This allows you to set the levels for the entire sound chain simply and safely.

The Peak Tone consists of a 500 Hz/ 0 dBm tone + a 19 kHz / - 20 dB pilot tone (the pilot signal may be disabled by selecting the Off option within the MPX Module menu before enabling the Peak Reference Tone mode).

3Once you have enabled the Peak Tone, adjust the Mpx Output Level until You reach the desired modulation deviation.

4Select the Normal Operation option in the Output Mode menu

(Normal Operation mode allows a normal use of the equipment and all its functions)

NOTE: THE PROCESSOR FACTORY SETTINGS ARE 0 dB FOR BOTH INPUT AND OUTPUT.

TO ACHIEVE THE BEST AUDIO QUALITY, WE RECOMMEND NOT TO LOWER THE OUTPUT LEVEL AND TO ADJUST THE EQUIPMENT CONNECTED TO THE PROCESSOR (STEREO ENCODERS, EXCITERS, ETC.) RATHER THAN THE PROCESSOR ITSELF.

12.3.4 CALIBRATING THE PILOT LEVEL AND PHASE

The Mpx Module / Pilot Level menu allows you to adjust the amount of 19kHz pilot tone injected into the composite signal (expressed in dB). Factory-default value is – 20 dB (+/- 7.5 kHz carrier deviation) compared to the overall Stereo Composite MPX signal. Level may be adjusted within the range of -25 dB to -15.5 dB, in 0.1 dB steps. Pilot tone may also be disabled by turning the jog-wheel anti-clockwise to Off.

The Mpx Module / Pilot Phase menu allows you to adjust the phase relationship between the 19 kHz pilot and the 38 kHz modulator. This can be used to correct for inconsistencies among different transmitters. It may be adjusted from -12.0 to + 12.0 degrees (Deg) in 1 deg steps

12.3.5 ENABLING SYNC OUTPUT

When required, Falcon 15 can supply TTL pilot synchro signal (19 kHz, square wave, 5 Vpp) on the Sync Out connector.

To do this, enter the Mpx Module Setup / Output Sync menu and select Output Sync Enabled option.

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