Keysight Technologies E4417A Service Manual page 60

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