19
Operation and Service Guide
Performance Test
Performance Test
Standing Wave Ratio (SWR) and Reflection Coefficient (Rho)
Performance Test
This section does not establish preset SWR test procedures since there are
several test methods and different equipm ent available for testing the SWR
or reflection coefficient. Therefore, the actual accuracy of the test equipment
must be accounted for when measuring against instrument specifications to
determine a pass or fail condition. The test system used must not exceed the
system Rho uncertainties shown in Table 4 when testing the E4412A, or in
Table 5 when testing the E4413A.
Table 4
Power Sensor SWR and Reflection Coefficient for the E4412A
a
a.Specifications apply to instruments with serial prefix US3848 and above. For
earlier instruments, refer to Appendix A.
Frequency
System Rho
Uncertainty
Actual
Measurement
Maximum
Rho
10 MHz to <30 MHz
±
0.010
0.099
30 MHz to <2 GHz
±
0.010
0.070
2 GHz to <6 GHz
±
0.010
0.078
6 GHz to <11 GHz
±
0.010
0.091
11 GHz to 18 GHz
±
0.010
0.119
