Télécharger Imprimer la page

Promax TV EXPLORER HD Mode D'emploi page 145

Publicité

USER'S MANUAL. TV EXPLORER HD
The calibration process must be carried out over the point of the installation which
is taken as reference, i.e. usually the headend. During this process is determined the
number of pilot frequencies to check, from one to three, in addition to the reference level
for pilots. In order to determine the number of pilots, the equipment takes the higher
found level and verifies that the other pilots have a non lower level to the reference one
plus the defined threshold level. If the pilot agrees this condition it will show on screen.
2.- MEASUREMENT OF THREE PILOTS THROUGHOUT THE NETWORK
Once TV EXPLORER
measurements in the different distribution outlets using the TV EXPLORER HD. On
the screen will appear the attenuation values for the three pilot frequencies
measured in the outlet plate (see the following figure).
Figure 17.- Attenuation measurements in an outlet plate.
In order to finish measuring, press the rotary selector
option.
02/2010
Figure 16.- SAT IF Test. Satellite band.
HD
has been calibrated, start to make level
[1] and select the (EXIT)
Page 39

Publicité

loading