Chapter 2 313
Performance Verification Tests
36. Displayed Average Noise Level: Agilent E4402B and E4403B
Subset D in Table 2-85.
8. After performing all applicable DANL measurement procedures,
Table 2-85 DANL Measurement Sequence, E4402B
Subset Procedure
Procedure Parameters Test
Record
Entrya
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)
B Measure DANL 10 MHz 1 GHz 1 kHz On 4/13)
Measure DANL 1 GHz 2 GHz 1 kHz On 5/14)
Measure DANL 2 GHz 3 GHz 1 kHz On 6/15)
C Measure DANL 10 MHz 1 GHz 10 Hz Off 7)
Measure DANL 1 GHz 2 GHz 10 Hz Off 8)
Measure DANL 2 GHz 3 GHz 10 Hz Off 9)
D Measure DANL 10 MHz 1 GHz 10 Hz On 10/16)
Measure DANL 1 GHz 2 GHz 10 Hz On 11/17)
Measure DANL 2 GHz 3 GHz 10 Hz On 12/18)
a. There are two possible entries for measurements made with the preamplifier on,
depending upon the ambient temperature. The first entry is for measurements
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 ambi-
ent temperature within the 20° to 30° C range.
Table 2-86 DANL Measurement Sequence, E4403B
Subset Procedure
Procedure Parameters Test
Record
Entry
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)
C Measure DANL 10 MHz 1 GHz 100 Hz Off 7)
Measure DANL 1 GHz 2 GHz 100 Hz Off 8)
Measure DANL 2 GHz 3 GHz 100 Hz Off 9)