Agilent Technologies 8753ET User Manual page 72

Coupling Power Between Channels 1 and 2
be used with the
D2/D1 toD2 on OFF
harmonic measurements, where the analyzer shows the fundamental on channel 1 and the
harmonic on channel 2. D2/D1 to D2 ratios the two, showing the fundamental and the
relative power of the measured harmonic in dBc. You must uncouple channels 1 and 2 for
this measurement, using the
alternating sweeps.
After uncoupling channels 1 and 2, you may want to change the fundamental power and
see the resultant change in relative harmonic power (in dBc).
allows you to change the power of both channels simultaneously, even though they are
uncoupled in all other respects.
Frequency Range The frequency range is determined by the upper frequency range of
the instrument or system (3 or 6 GHz) and by the harmonic being displayed. The 6 GHz
operation requires an 8753ET/ES Option 006.
frequency for maximum frequency and harmonic mode.
Table 1-3 Maximum Fundamental Frequency using Harmonic Mode
Harmonic
Measured
2nd Harmonic
3rd Harmonic
Accuracy and input power Refer to the "Specifications and Characteristics" chapter in
the reference guide. The maximum recommended input power and maximum
recommended source power are related specifications.
Using power levels greater than the recommended values may cause undesired harmonics
in the source and receiver. The recommended power levels ensure that these harmonics
are less than −45 dBc. Use test port power to limit the input power to your test device.
softkey. You can use the D2/D1 to D2 function in
COUPLED CHAN ON off
Maximum Fundamental Frequency
8753ET/ES 8753ET/ES
Option 006
3 GHz
1.5 GHz
1.0 GHz
COUPLED PWR ON off
softkey set to OFF to allow
COUPLED PWR ON
Table 1-3 shows the highest fundamental
6 GHz
3.0 GHz
2.0 GHz
Making Measurements
Measuring Amplifiers
is intended to
off
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