AHD VIDEO TRANSMISSION

AHD_schemadarstellung-ENG_OHNE_RZ.jpg
AHD (HDTV)

VIDEO TRANSMISSION

PROBLEMS WITH VIDEO TRANSMISSION:

  • Non-linear cable loss

  • Loss of video signal quality

  • Signal at the end of the line no longer complies with the standard  specifications and is not suitable for further processing.

OUR SOLUTION:

  • The AHD video signal is driven by a cable line driver with pre emphasis in the high frequency range (6MHz-45MHz) to compensate for nonlinear cable loss. This improves the signal-to-noise ratio over the long transmission path and the associated considerable attenuation.

  • The signal is postprocessed on the control unit side to correct shape and amplitude (adjustable multi-stage band selective amplifier stages - AHD video equalizer).  Additionally the signal is clamped at a constant DC voltage level. The adjustment parameters are used to process signals for different cable types and lengths. They can be saved on files as sets and programmed by software so that in case of service (cable replacement or shortening the cable) the adjustment  
    can be done easily and time saving.

Bedienkonsole als Verdrahtungs-
board, für alle Verbindungen 
für Bedienelemente, Joysticks, 
Schalter, Anzeigen

CAMERA MODULE 1

14 x 14 mm

CAMERA MODULE 2

22 x 26 mm

ZOOM-KAMERA BLOCK 

43 x 44x 60 mm

 

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