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Chapter 2 327
Performance Verification Tests
38. Displayed Average Noise Level: Agilent E4407B and E4408B
Subset D in Table 2-89.
Table 2-89 DANL Measurement Sequence, E4407B
Subset Procedure
Procedure Parameters
Test
Record
Entry
a
Start
Freq
Stop Freq
Test
RBW
Preamp
State
A Measure DANL 10 MHz 1 GHz 1 kHz Off 1)
Measure DANL 1 GHz 2 GHz 1 kHz Off 2)
Measure DANL 2 GHz 3 GHz 1 kHz Off 3)
Measure DANL 3 GHz 6 GHz 1 kHz Off 4)
Measure DANL 6 GHz 12 GHz 1 kHz Off 5)
Measure DANL 12 GHz 22 GHz 1 kHz Off 6)
Measure DANL 22 GHz 26.5 GHz 1 kHz Off 7)
B Measure DANL 10 MHz 1 GHz 1 kHz On 8/21)
Measure DANL 1 GHz 2 GHz 1 kHz On 9/22)
Measure DANL 2 GHz 3 GHz 1 kHz On 10/23)
C Measure DANL 10 MHz 1 GHz 10 Hz Off 11)
Measure DANL 1 GHz 2 GHz 10 Hz Off 12)
Measure DANL 2 GHz 3 GHz 10 Hz Off 13)
Measure DANL 3 GHz 6 GHz 10 Hz Off 14)
Measure DANL 6 GHz 12 GHz 10 Hz Off 15)
Measure DANL 12 GHz 22 GHz 10 Hz Off 16)
Measure DANL 22 GHz 26.5 GHz 10 Hz Off 17)
D Measure DANL 10 MHz 1 GHz 10 Hz On 18/24)
Measure DANL 1 GHz 2 GHz 10 Hz On 19/25)
Measure DANL 2 GHz 3 GHz 10 Hz On 20/26)
a. There are two possible entries for measurements made with the preamplifier
on, depending upon the ambient temperature. The first entry is for measure-
ments made with an ambient temperature outside of the 20
° to 30° C range, but
within the 0
° to 55° C range. The second entry is for measurements made with
an ambient temperature within the 20
° to 30° C range.