Frequency Accuracy Test - Agilent Technologies E4991A Service Manual

Performance Test and Function Test
Performance Test

Frequency Accuracy Test

This test verifies the E4991A's test signal frequency accuracy with an external frequency
counter.
Specification
Frequency Accuracy:
Required Equipment
Frequency Counter
BNC(m)-BNC(m) Cable, 61 cm
N(m)-BNC(f) Adapter
7mm-N(f) Adapter
Procedure
NOTE
In the following procedure, the 53181A is used. Perform the same operation if another
frequency counter is used.
1. Connect the equipment as shown in Figure 2-1. For testing the analyzer equipped with
NOTE For testing without Option 1D5, disconnect the above BNC(m)-BNC(m) cable.
28
Description
*1.Opt.050 and Opt.124 can be substituted for Opt.030. In this
case, a N(m)-BNC(f) adapter is necessary.
Option 1D5, connect a BNC(m)-BNC(m) cable between the Ext Ref In connector and
the Ref Oven(Option 1D5) connector on the analyzer rear panel.
10 ppm (without Option 1D5)
1 ppm (with Option 1D5)
Recommended Model
53131/2A Opt.010 and 030
or 53181A Opt.010 and 030
p/n 8120-1839
p/n 1250-0780
11524A
*1
*1
Chapter 2