HP 4284A - Page 368

Test Frequency
Accuracy Test
This test veries that the accuracy of the HP 4284A's test frequency
is within 6 0.01%.
Figure 10-1. Test Frequency Accuracy Test Setup
Equipment
Electronic Counter HP 5334B
BNC(m)-to-BNC(m) Cable, 30 cm HP PN 8120-1838
Procedure:
1. Set up the equipment as shown in Figure 10-1.
2. Perform a SYSTEM RESET as describ ed in \System Reset".
3. Set the Test Frequency in accordance with Table 10-2, and
conrm that the counter readings are within the test limits given
in the table.
Table 10-2. Test Frequency Test limits
Test Frequency Test Limits
1 kHz 0.9999 kHz to 1.0001 kHz
8 kHz 7.9992 kHz to 8.0008 kHz
20 kHz 19.998 kHz to 20.002 kHz
80 kHz 79.992 kHz to 80.008 kHz
400 kHz 399.96 kHz to 400.04 kHz
1 MHz 0.9999 MHz to 1.0001 MHz
Performance Tests 10-5