Table of Contents
Advertisement
Output Standing Wave Ratio (SWR) Test
24.Calculate the value of the output voltage reflection coefficient (|Γ |)
using equation 2-12 and record the value:
Equation 2-12:
(
2 Γ
M 2 Γ
–
Γ
1
=
-------------------------------------------------------------------------------------------------------------------------------------------------------------------- -
s
One of the roots of this equation will be non-physical while the other
gives a value for |Γ
• |Γ
|___________
s
25.Calculate the value of the output SWR using Equation 2-13 and record
the value:
Equation 2-13:
(
Γ
)
1
+
s
SWR
=
-----------------------
(
Γ
)
1
–
s
• Output SWR ___________
26.Verify that the output SWR is not greater than the maximum value
shown in the following table:
Table 2-7: Output SWR Result
1. For instruments with the 50MHz 1mW output
(power ref) connector mounted on the front panel.
2. For instruments with the 50MHz 1mW output
(power ref) connector mounted on the rear panel. This
applies to models E4418B and E4419B with option 003
fitted.
Agilent E4418B/E4419B Service Guide
Output Standing Wave Ratio (SWR) Test
2
)
±
(
2 Γ
2 Γ
)
M
–
–
2
2
1
2
2
2 Γ
(
Γ
M
–
1
2
|.
s
Max
1
1.06
2
1.08
Performance Tests
2
2
4 Γ
(
Γ
) M 1
(
)
M
–
–
1
2
)
Actual Result
s
2-29
Advertisement
Table of Contents
