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STEREO GENERATOR – MPX OUTPUT SIGNAL

ENG

Axel Technology srl

www.axeltechnology.com

25 STEREO GENERATOR – MPX OUTPUT SIGNAL

25.1 CONFIGURATION OF THE OUTPUT: NORMAL, PEAK TONE

Output Mode : it sets the Barracuda operating mode:

The Normal Operation refers to the regular operating status, with all features available.

In the Peak Tone Reference mode, the Barracuda outputs a reference tone consisting of

a 500 Hz / 0 dBm sinusoidal signal. This tone corresponds to the maximum frequency

deviation. This is helpful for an easier transmitting chain set-up.

25.2 PILOT PHASE AND LEVEL + MPX SIGNAL LEVEL

Level and phase of the MPX Pilot are adjustable from the Smart Coder Remoter as well as from the Front Panel menu.

You may also choose between a Stereo or a Mono broadcasting using the relevant drop-down menu (MPX Mode).

Mono mode will turn off the Pilot and associated controls.

MPX Level it adjusts the overall level of the Stereo Composite Signal (MPX) and/or RDS signal (with or without signals

injected from Aux 1 and 2 mixed into). Factory preset: 0 dBm (2.2 Vpp).

PILOT Level it indicates the 19 kHz level to inject in MPX Signal in order to enable the stereo decoder in Radio receiver

PILOT Phase set the 19 Khz phase in case you need to make a fine tuning of it. Values allowed are from -12 ° to +12 °

Post Clipper Gain it adjusts the Gain after the clipping stage (see block diagram).

It may adjusted in the + / - 12 dB range, 0.1 dB steps. Default value is 0 dB. See next paragraph.

Synch Out if flagged, allows other RDS Generator to be driven by 19 Synch TTL signal.

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Barracuda Networks SP4 Manual do Utilizador Página 60