Hall-research UVA-8 Bedienungsanleitung PDF herunterladen (Seite 7)

4 or 8 Channel Splitter PC Video & Audio over Twisted-Pair Receivers

3. Configuration & Operation

3.1 Why Cable Compensation?

All cables attenuate (reduce) the high-frequency components of the video signal that

is being transmitted. The longer the cable, the more signal loss. If not compensated

for, this signal loss will result in blurry and smeared images being displayed.

The image quality depends on the resolution and level of detail in the image. The

Hall Research URA series of receivers have one of the most precise and complex

equalization techniques in the industry and allow full recovery of the original signal’s

bandwidth.

It is best to make this adjustment using a test pattern that is designed to depict and

exaggerate this effect.

Some Hall Research senders may have a built-in test pattern generator. If your

sender unit is equipped with this feature, simply activate it on the sender. Otherwise,

you can connect a PC to the source and display a test pattern. A sample test pattern

is available at http://www.hallresearch.com/skew.htm

to assist in the adjustment of

the compensation and to evaluate the amount of color skew in the installation.

The table below lists the recommended maximum distances from sender to the

receiver depending on the resolution used.

Refresh Rate

60 Hz 75 Hz

800x600 1000 ft 1000 ft

1024x768 1000 ft 850 ft

1280x1024 850 ft 750 ft

Resolution

1920x1200 750 ft 700 ft

Table 3 -

Recommended maximum

CATx cable length from

sender to the receiver

1 2 3 4 5 6 7 8 9 10 11 12 ... 15 16

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Hall-research UVA-8 Bedienungsanleitung Seite 7