9.0 System Scan
The System Scan 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 10dB higher compared to digital channels while DOCSIS channel levels should
range between -10 to +10 dBmV to allow for adequate margin at the cable modem.
The following measurements are performed for each analog channel:
Video Power Level in dBmV
Audio1 Power Level in dBmV
V/A1 Ratio in dB
CX100/110/120/150/180 series e-Manual D07-00-002 Rev B01
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