Giga-tronics 8003 - Page 231

Performance Test & Calibration
Manual 20791, Rev. C, June 2001 4-17
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.
3. Use the first CW Linearity error value entered in the +16 dBm to +20 dBm Linearity Data on page 4-16.
Swept Linearity Data - (+16 dBm to -50 dBm)
Step
Attenuator
Value
Power
Set Point
Power
Meter
Reading
(P)
8540
(DUT)
Reading
(R)
Reference
Power
Ratio
8540
(DUT)
Reading
Ratio
Linearity Error (%)
1
Linearity
Specification
Accumul ated
Linearity
Error
2
0 dB See Note 3
±1.4% Same as Lin.
error above
10 dB 1.00 mW
±0.025 mW
P1 = R1 = P1/P2 = R1/R2 =
10.00 mW
±0.25 mW
P2 = R2 = ±1.4%
20 dB 1.00 mW
±0.025 mW
P1 = R1 = P1/P2 = R1/R2 =
10.00 mW
±0.25 mW
P2 = R2 = ±1.4%
30 dB 1.00 mW
±0.025 mW
P1 = R1 = P1/P2 = R1/R2 =
10.00 mW
±0.25 mW
P2 = R2 = ±1.4%
40 dB 1.00 mW
±0.025 mW
P1 = R1 = P1/P2 = R1/R2 =
10.00 mW
±0.25 mW
P2 = R2 = ±1.5%
50 dB 1.00 mW
±0.025 mW
P1 = R1 = P1/P2 = R1/R2 =
10.00 mW
±0.25 mW
P2 = R2 = ±2.4%
60 dB
(Increase avg.
to 8)
1.00 mW
±0.025 mW
P1 = R1 = P1/P2 = R1/R2 =
10.00 mW
±0.25 mW
P2 = R2 = ±11.4%