Zero Set Performance Verification - Keysight Technologies 8481A Operating And Service Manual

2 General Information
Table 2-1
Frequency
4 to 12 GHz
12 to 18 GHz
18 to 26.5 GHz
8487D
50 to 100 MHz
0.1 to 2 GHz
2 to 12.4 GHz
12.4 to 18 GHz
18 to 34 GHz
34 to 40 GHz
40 to 45 GHz
45 to 50 GHz

Zero set performance verification

This performance verification is carried out to verify that a minimal amount of
residual offset error is present after zeroing has been performed. The offset error is
caused by contamination from several sources including the noise of the
device-under-test (DUT) itself. Zero set is the difference between the power levels
indicated by the DUT, after executing zeroing and the true zero power. Ideally, this
difference should be zero.
This performance test requires a compatible Keysight power meter with the DUT
and a computer with the Keysight IO Libraries Suite installed.
System specification:
Recommended power meter:
44
Power sensor SWR and reflection coefficient
Maximum SWR (reflection coefficient)
< 1.19 (0.085)
< 1.25 (0.112)
< 1.29 (0.127)
< 1.19 (0.085)
< 1.15 (0.069)
< 1.20 (0.091)
< 1.29 (0.127)
< 1.37 (0.156)
< 1.61 (0.234)
< 1.86 (0.301)
< 1.89 (0.310)
±50 nW (for all 848xA) and
±20 pW (for all 848xD), tested at 50 MHz
EPM series power meters (E4418B and E4419B),
the EPM-P series power meters (E4416A and
E4417A)
Keysight 8480 Series Operating and Service Manual
Actual measurement