Keysight Technologies E4417A

Performance Tests 2
Keysight E4416A/E4417A Power Meters Service Guide 65
21 Calculate the power measured from the power reference oscillator using
equation 2-9:
Equation 2-9:
22 Record the value P
1
:
–P
1
___________
23 Calculate the power measured with mount resistance set to 100 Ω:
– Set the Keysight 432A mount resistance switch to 100 Ω.
– Connect the equipment as shown in Figure 2-10 ensuring that the DVM
input leads are isolated from chassis ground.
– Repeat steps 15 to 20. Record the new values of V
0
, V
1
and V
comp
:
–V
0
___________
–V
1
___________
–V
comp
___________
24 Calculate the power measured from the power reference oscillator using
Equation 2-10 and record the value:
Equation 2-10:
–P
2
___________
P
1
2 V
comp
V
1
V
0
–()V
0
2
V
1
2
–+
⋅
4 R
1
⋅
----------------- ---------------------------- --------------=
P
2
2 V
comp
V
1
V
0
–()V
0
2
V
1
2
–+⋅
4 R
2
⋅
------------------ ---------------------------- -------------=