Giga-tronics 58542 - Page 117

Calibration & Testing
Publication 21555, Rev. E, September 2002 4-13
60 dBm to +16 dBm Linearity Data are on the next page.
NOTES:
1. Linearity Error (%) = [(R1/R2) / (P1/P2) - 1] x 100
2. Accumulated error is the sum of the current dB segment linearity error plus the previous accumulated error.
58542 VXIBUS UNIVERSAL POWER METER
Performance Verification Test Data Sheet (1 of 2)
Date:
Operator:
Test Number:
Power Meter S/N:
Power Sensor S/N:
Calibrator Output Power Reference
Minimum Actual Reading Maximum
0.981mW 1.019mW
Linearity Data (+16dBm to +20dBm)
Step
Attenuator
Value
Power Set
Point
Power Meter
Reading
(P)
58542 (DUT)
Reading
(R)
Reference
Power Ratio
58542
(DUT)
Reading
Ratio
Linearity Error (%)
1
Linearity
Specification
Accumulated
Linearity
Error
2
0dB 1.00mW
±0.025mW
P1 = R1 = P1/P2 = R1/R2 =
3.98mW
±0.10mW
P2 = R2 = ±1% Same as Lin. error
above
0dB 3.98mW
±0.10mW
P1 = R1 = P1/P2 = R1/R2 =
5.01mW
±0.13mW
P2 = R2 = +1%
-1.6%
0dB 5.01mW
±0.13mW
P1 = R1 = P1/P2 = R1/R2 =
6.31mW
±0.16mW
P2 = R2 = +1%
-2.7%
0dB 6.31mW
±0.16mW
P1 = R1 = P1/P2 = R1/R2 =
7.94mW
±0.2mW
P2 = R2 = +1%
-3.8%
0dB 7.94mW
±0.2mW
P1 = R1 = P1/P2 = R1/R2 =
10mW
±0.25mW
P2 = R2 = +1%
-4.9%
(continued)