Tecatel CENT TAC 645 Manual De Usuario página 28

Each UHF input has a 20 dB switchable amplifier.
This is used as additional 20 dB attenuator for high levels up to 105 dBμV.
To switch off the UHF input amplifier.
> Select the UHF input to be attenuated.
> Push the rotary button to enter the selected mode.
> Turn the button to select the input.
Turn continuously the button through every cluster to have access to the input selection.
> Push the button to confirm.
> Push the rotary button to enter the selected mode.
> Turn the button to switch off the 20 dB amplifier.
> Push the button to confirm.
Tecatel
Filter-Input mode.
Filter Input
Filter Input
1
2
Filter Input
Level mode.
28
The LED is green.
The LED is now red
2
All LED's of selected input
are activated
3 4 5 6
1
The LED is green.
Level
The LED is green.
Level
The LED is now red.
In 'OFF' position
the input signal is
20 dB attenuated.
Level
The LED is green.