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– V
– V
– V
– R is the bridge resistance
– ε is the correction factor/effective efficiency
The following procedure guides you on how to perform a precision power
measurement with the N432A.
1 Preset the N432A to its default state by pressing
2 Set up the following connections in which the HI and LO terminals of two
Figure 2-44
Keysight N432A User's Guide
is the temperature compensation bridge top voltage measured after
COMP1
zeroing with the RF source connected
= V
– V
, without incident RF power
0
COMP0
RF0
= V
– V
, with incident RF power
1
COMP1
RF1
Keysight 3458A digital multimeters are connected to the N432A rear panel V
and V
outputs.
COMP
RF in
Connection diagram for precision power measurement
Agilent 3458A
HI
LO
Agilent 3458 A
HI
LO
V
output
RF
N432 A
V
output
COMP
A
Thermistor
sensor
2
.
RF
93
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