Agilent Technologies E1401-90493

Chapter 2 49

Performance Verification Tests

3. Frequency Readout and Marker Frequency Count Accuracy: Agilent E4401B, E4402B,

E4403B, and E4411B

“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 2-3. Remember to

connect the 10 MHz REF OUT of the analyzer to the 10 MHz REF

INPUT of the synthesized sweeper.

CAUTION Use only 75 Ω cables, connectors, or adapters on instruments with 75 Ω

inputs, or the input connector will be damaged.

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, 1.490 GHz (Agilent E4401B and E4411B)

CW, 1.5 GHz (Agilent E4402B and E4403B)

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 frequency reading in the performance verification

test record.

5. Repeat step 3 and step 4 above for the remaining spans listed in

Table 2-5.

Part 2: Marker Count Accuracy

Perform "Part 1: Frequency Readout Accuracy" before performing this

procedure.

1. Press Preset on the analyzer. Press the Factory Preset softkey, if it is

Table 2-5 Frequency Readout Accuracy

Analyzer Span

(MHz)

Test Record Entry,

Actual

Marker Frequency

20 1)

10 2)

1 3)