VeEX VePal CX350, Руководство пользователя

Страница: 30 / 81

For the A&D Combined mode, a Normalize function is supported. This allows you to artificially boost the levels of Digital Carriers for Tilt Analysis. The default value is set at
6 dB. You can change the Normalize value by pressing the Set Norm. button.
Tilt Scan
Tilt Scan
Go back to top Go back to TOC
7.3 System Scan
Overview
Within seconds, all analog and digital channels at the service location are measured. The function provides a graphical overview of the entire channel plan according to the
selected active channel table. It can provide fast visual confirmation or a snapshot of key analog and digital TV channels or DOCSIS carrier levels.
As a rule of thumb, analog carriers should be no more than 6 to 10 dB higher compared to digital channels. DOCSIS channel levels should range between -10 to +10 dBmV
to allow for adequate margin at the cable modem.
Analog Scan
The following measurements are performed for each analog channel:
Video Power Level in dBmV
Audio1 Power Level in dBmV
V/A1 Ratio in dB
CX350 e-Manual D07-00-037 RevC01 Page 30 of 81