Measuring The Power Of Digital Channels (Channel Power) - Promax PROLINK-4C Manual De Instrucciones

USER'S MANUAL. PROLINK-4C
4.9.1.4

Measuring the Power of Digital Channels (Channel power)

The PROLINK-4C offers two different methods to measure digital channels
power, according to the active operation mode: Automatic method in TV mode and
Integration method in Spectrum mode. The Automatic method measures digital
channel power in the measurement filter bandwidth and estimates total channel power
assuming that spectral density is uniform throughout channel bandwidth. On the other
hand, the Integration method takes into account signal spectral distribution so
measurement is more accurate (see 4.10.2 Selecting the Measurements Mode). The
obtained measurements using these methods may differ some dBs, specially when the
digital signal is degraded.
Figure 10.- Measuring digital power.
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