Fluke 9640A Series, Instruction Manual

Page: 224 / 324

9640A
Instruction Manual
5-34
20. Compute the voltage reflection coefficient using the following formula:
Max
UUT
Z
Z
=

ρ
21. Using the following formula, calculate the UUT VSWR. The calculated value must
be < 1.1.


ρ
ρ
−
+
=
1
1
VSWR
22. Repeat steps 16 through 21 for the remaining test frequencies and maximum VSWR
values in Table 5-17, setting the spectrum analyzer center frequency in step 15 to the
test frequency.
23. Repeat steps 5 through 22 for the remaining UUT output levels and maximum
VSWR values in Table 5-17.
24. Set the UUT to
STBY
.
Table 5-17. VSWR Test (50
Ω
)
Frequency Level Signal Generator
Frequency
Maximum VSWR
500 MHz 500.00001 MHz < 1.1
1 GHz 1.00000001 GHz < 1.2
3 GHz 3.00000001 GHz < 1.3
4 GHz
+13 dBm
4.00000001 GHz < 1.4
500 MHz 500.00001 MHz < 1.1
1 GHz 1.00000001 GHz < 1.2
3 GHz 3.00000001 GHz < 1.3
4 GHz
+3 dBm
4.00000001 GHz < 1.4
500 MHz 500.00001 MHz < 1.1
1 GHz 1.00000001 GHz < 1.2
3 GHz 3.00000001 GHz < 1.3
4 GHz
-7 dBm
4.00000001 GHz < 1.4