I
-
The
HP
85721A
with
Supported
Analyzer
The HP 85721A with supported analyzer can perform tests channel-by-
channel, or over multiple channels with multiple tests performed on each
channel. (Refer to Chapter 1 for supported analyzer information.)
With the Option 107 TV receiver, the analyzer provides video testing and
TV receiver capability. The HP 85721A with supported analyzer has three
operating modes:
1. Spectrum analyzer
2. Cable TV analyzer
3. TV receiver
1. The analyzer is a full-featured spectrum analyzer. Some key spectrum
analysis features include the following:
l Zoom window
l Analog+ display (digital implementation of an analog display)
l Peak zoom
l Title, execute remote commands, and edit
DLPs
with a PC keyboard
l Adjacent channel power, occupied BW, and channel power
l Multiple markers and marker table
l Peak table
l % AM,
TOI,
and N
dB
bandwidth
l AM measurements with FFT menu
l Gate driver (Option 105 or 107 required)
2. The HP 85721A with supported analyzer is a cable TV analyzer.
With the Option 107 added, the analyzer can also perform three
video measurements: differential gain, differential phase, and
chrominance-to-luminance delay inequality. In addition, the Option 107
allows the analyzer to perform previously interfering RF measurements
in a non-interfering manner. That is, carrier-to-noise ratio, composite
second order distortion, and in-channel frequency response tests can be
performed without disrupting service.
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