52 Chapter 2
Performance Verification Tests
4. Frequency Readout and Marker Frequency Count Accuracy: Agilent E4404B, E4405B,
E4407B, and E4408B
Procedure
This performance verification test consists of two parts:
“Part 1: Frequency Readout Accuracy”
“Part 2: Marker Count Accuracy”
Perform “Part 1: Frequency Readout Accuracy” before “Part 2: Marker
Count Accuracy.”
Part 1: Frequency Readout Accuracy
1. Connect the equipment as shown in Figure 2-4. Remember to
connect the 10 MHz REF OUT of the analyzer to the 10 MHz REF
INPUT of the synthesized sweeper.
Option BAB only: Use the APC 3.5 adapter to connect the cable to
the analyzer input.
2. Perform the following steps to set up the equipment:
a. Press INSTRUMENT PRESET on the synthesized sweeper, then set
the controls as follows:
CW, 1.5 GHz
POWER LEVEL, –10 dBm
b. Press Preset on the analyzer. Press the Factory Preset softkey, if it
is displayed. Set the analyzer by pressing the following keys:
FREQUENCY, 1.5 GHz
SPAN, 20 MHz
3. Press Peak Search (or Search) on the analyzer to measure the
frequency readout accuracy.
4. Record the marker (Mkr1) frequency reading in the performance
verification test record as indicated in Table 2-6.
5. Change to the next analyzer span setting listed in
Table 2-6.
6. Repeat step 3 through step 5 for each analyzer frequency and span
setting and synthesized sweeper CW frequency setting listed in
Table 2-6 for the analyzer being tested.
Table 2-6 Frequency Readout Accuracy
Synthesized
Sweeper CW
Frequency
(MHz)
Analyzer
Span
(MHz)
Analyzer
Center
Frequency
(GHz)
Test
Record
Entry
Frequency
(GHz)
1500 20 1.5 1)