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Hall Research UV232A-8S User Manual

Page 12

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Model UV232A-4S and UV232A-8S

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3.2 Compensation Adjustment Procedure on URA Receivers

• When using a UV232A-4S or UV232A-8S splitter, place the right rear

DIP switch in the CAL position to create the video test pattern on the
receiver video outputs.

• Apply power to the receiver. Wait until all LED’s are turned off

• Press the SEL button once to enter Adjustment-mode.

• In Adjustment-mode, all three (3) LEDs will be turned ON.

• The UP or DOWN buttons can now be used to adjust the high

frequency (HF) compensation up or down until the video no longer
looks smeared (see figure below).

• While using the UP and DOWN buttons, if an upper or lower limit of

adjustment is reached, the LED’s will blink for each continued press
of the UP or DOWN button.

• Pressing both the UP & DOWN buttons together will reset the high

frequency (HF) compensation back to zero.

• To exit the Adjustment mode at any time, press the SEL button until

all LED’s are OFF (the unit also has a built-in 1 minute timeout)

• When using a UV232A-4S or UV232A-8S splitter, return the right rear

DIP switch in the RUN position to send the video input to the
receiver..

Figure 4 - Typical test patterns used for adjusting compensation

Figure 5 - Effect of adjustment on the smearing

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