Operating Information
2
N432A User’s Guide
87
28
Compute the power measured from the oscillator, P
1
, using the
following equation:
29
Now, set the N432A bridge resistance to 100
Ω
. Again, set up the
connections shown in
.
30
Repeat steps 26 to 28.
31
Compute the power measured from the oscillator, P
2
, using the
following equation:
32
Compute factor M using the following equation:
33
Compute the value of the output VRC, |
Γ
s
|, using the following
equation:
One of the roots of this equation will be non- physical while the other
gives a value for |
Γ
s
|.
34
Finally, VSWR of the source can be computed as follows:
P
1
2
V
COMP
1
V
1
V
COMP
0
V
0
–
(
)
V
0
2
V
1
2
–
+
4
R
1
-----------------------------------------------------------------------------------------------------
=
P
2
2
V
COMP
1
V
1
V
COMP
0
V
0
–
(
)
V
0
2
V
1
2
–
+
4
R
2
-----------------------------------------------------------------------------------------------------
=
M
P
1
P
2
------
1
Γ
2
2
–
(
)
1
Γ
1
2
–
(
)
--------------------------
=
Γ
s
2
Γ
1
M
2
Γ
2
–
(
)
2
Γ
2
2
Γ
1
M
–
(
)
2
4
Γ
1
2
M
Γ
2
2
–
(
)
M
1
–
(
)
–
±
2
Γ
1
2
M
Γ
2
2
–
(
)
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
=
VSWR
1
Γ
S
+
(
)
1
Γ
S
–
(
)
-----------------------
=
Содержание N432A
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Страница 55: ...Operating Information 2 N432A User s Guide 33 4 Press to exit the channel setup screen ...
Страница 84: ...2 Operating Information 62 N432A User s Guide Figure 2 29 Min Hold indicated in full in the expanded window ...
Страница 90: ...2 Operating Information 68 N432A User s Guide Figure 2 36 Recall confirmation pop up dialog ...
Страница 118: ...2 Operating Information 96 N432A User s Guide ...
Страница 140: ...3 Maintenance 118 N432A User s Guide ...
Страница 152: ...4 Specifications and Characteristics 130 N432A User s Guide ...
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