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3-8 ChannelWorks Cable TV Installer’s Guide
Verifying The Flatness Of The Cable TV Network At The Selected Drop
Referring to Figure 3-4, perform the following procedure to verify the cable TV net-
work’s flatness at the selected drop.
1.
Perform the center frequency receive level test.
Step the RF Combination Meter’s transmit and receive frequency settings in 0.5
MHz increments toward both the low side and high side of the selected center fre-
quency out to a maximum of
±
2.5 MHz from center frequency.
2.
Record values.
Flatness (peak to valley)
=
maximum reading
−
minimum reading.
3.
Check against specification for Flatness (
±
1dB).
Refer to the Cable TV Network Requirements in Chapter 1.
Содержание ChannelWorks DECTV-AA
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