Chapter 3 — Performance Verification 3-10 1 GHz Calibrator VSWR Verification
ML248xx, ML249xA MM PN: 13000-00164 Rev. K 3-23
35. Calculate the variable Gamma S (ΓS) for the 100, 300 and 400 resistance values using the M variables
from Step 34, the Gamma values from Step 19 and following equations. Each equation will produce two
numbers, record the number that is between -1 and +1, and discard the number outside of this range.
ΓS100 = ______________
ΓS300 = ______________
ΓS400 = ______________
36. With the three Gamma S (ΓS) values from Step 35, calculate three VSWR values for the 1 GHz RF
Calibrator using the following equations. Record the value nearest to 1 as the VSWR value in the test
record, on page A-11.
VSWR
100
= ______________
VSWR
300
= ______________
VSWR
400
= ______________
ΓS100
2 Γ200 M100 Γ100–×()2 Γ100 2 Γ200 M100××–×()
2
4 Γ200
2
M100 Γ100
2
–×()– M100 1–()×±
2 Γ200
2
M100 Γ100
2
–×()
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------=
ΓS300
2 Γ200 M300 Γ300–×()2 Γ300 2 Γ200 M300××–×()
2
4 Γ200
2
M300 Γ300
2
–×()– M300 1–()×±
2 Γ200
2
M300 Γ300
2
–×()
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------=
ΓS400
2 Γ200 M400 Γ400–×()2 Γ400 2 Γ200 M400××–×()
2
4 Γ200
2
M400 Γ400
2
–×()– M400 1–()×±
2 Γ200
2
M400 Γ400
2
–×()
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------=
VSWR100
1 ΓS100+()
1 ΓS100–()
----------------------------------=
VSWR300
1 ΓS300+()
1 ΓS300–()
----------------------------------=
VSWR400
1 ΓS400+()
1 ΓS400–()
----------------------------------=