TB 9-6625-2308-35
(3) Set the multimeter to a range that results in a 1 V resolution. Connect the
positive and negative leads to the VCOMP and VRF connectors respectively on the rear panel
of the power meter.
(4) Fine zero the power meter and set power meter RANGE switch to 1 mW.
(6) Set the signal generator output to 50 MHz and level to 1.00 mW as indicated on
the power meter.
Linearity error
Test
(%)
Step
Power set
Power meter
instrument
Test
Accumulated
attenuator
point
reading
reading
Reference
instrument
Linearity
linearity
value
(mW)
(P)
(R)
power ratio
reading ratio
specification
error
1.00
0
dB
P1 =
R1 =
P1/P2 =
R1/R2 =
0.025
3.98
Same as Lin
1%
P2 =
R2 =
error above
0.10
3.98
0
dB
P1 =
R1 =
P1/P2 =
R1/R2 =
0.10
5.01
+1%
P2 =
R2 =
-1.6%
0.13
5.01
0
dB
P1 =
R1 =
P1/P2 =
R1/R2 =
0.13
6.31
+1%
P2 =
R2 =
-2.7%
0.16
6.31
0
dB
P1 =
R1 =
P1/P2 =
R1/R2 =
0.16
7.94
+1%
P2 =
R2 =
-3.8
0.2
7.94
0
dB
P1 =
R1 =
P1/P2 =
R1/R2 =
0.2
10
+1%
P2 =
R2 =
-4.9
0.25
1.00
10
dB
P1 =
R1 =
P1/P2 =
R1/R2 =
0.025
10.00
1%
P2 =
R2 =
0.25
1.00
20
dB
P1 =
R1 =
P1/P2 =
R1/R2 =
0.025
10.00
1%
P2 =
R2 =
0.25
1.00
P1 =
R1 =
P1/P2 =
R1/R2 =
0.025
1
30
dB
10.00
1%
P2 =
R2 =
0.25
9
