Rover OMNIA-6, Руководство пользователя

Страница: 15 / 56

Omnia-6 User’s Guide Draft Version
15
7.0 ANALOG CHANNELS (PAL)
Figure 9: Analogue Measure Display Pages.
On the first page, the device gives real-time updates of the Visual Carrier Level, Audio Carrier Level, and the
Visual – Audio difference. The second page performs a Carrier to Composite Noise measurement at the
indicated channel. The third page performs a Hum measurement. Using the , , and keys,
navigate to the HUM item and select from the available measurement options (50 Hz, 60 Hz, 100 Hz, 120
Hz, 10-2000 Hz).
8.0 QAM CHANNELS
Figure 10: QAM Measurement Display Pages.
The Power Old is the last power measurement made on the channel before carrying out MER, Before BER
and Post BER calculations. Going to Page 2 using standard navigation, provides
a real-time update of the
average channel power. Peak/VAL(ley) indicates in-band flatness within the indicated digital channel.