A/V IF Modulators
CVM/IF

General. This Audio/Video modulator is the basic element for the realization of Compact TV Transmitters, where the CVM/IF is plug-in together with IF-channel converter on a 3U (132 mm) height single rack unit. The Audio/Video are the same of classic VAM01/DV modulator.
 

° Digital-quality. The CVM/IF uses a back-porch clamping circuit, combined with a full band linearity corrector it's possible to obtain a perfect video quality with negligible distortions and intermodulations. All this means a superior video quality with only a slight difference compared with digital TV.

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Compatible with all standard composite video and audio signals (PAL, NTSC, SECAM).Available for B,G,M,N,I,D,K,K1 and L systems. CVM/IF professional multistandard modulator is designed to produce sound and vision modulated signals at any standard intermediate frequency.

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Vestigial sideband SAW filter. For a perfect vestigial sideband modulation an high quality SAW filter is used complying all international standards. This filters outstand for their excellent linear phase and flat pass-band and group-delay characteristics.

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Group delay precorrection. TV receiver group delay precorrection is provided for all standards.

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White clipper. The white clipper is factory set to guarantee the best modulation quality.

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PLL sound carrier. Sound and video intercarrier is synchronized by PLL to video line frequency for maximum stability and negligible intermodulations.

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Stereo and dual sound. Available with dual sound facility (optional) for stereo transmissions.


      OPTIONS FOR VAM 01/DV

 Options for VAM 01/DV
/SDG Dual sound/stereo board.
/DS 2nd audio carrier board for dual sound.
/VDC-VM 24 VDC power supply for battery or solar cells operations.