Performance Verification
Publication 31231, Rev. J, October 2003
4-3
4.2.2
Frequency Range, Resolution & Accuracy
4.2.2.1
Description
Connect the 12000A RF output to the input of a frequency counter. The internal timebase of the
counter is a reference for the 12000A to eliminate timebase errors from the measurements. This
procedure does not check for timebase accuracy, and therefore the frequency in the 12000A display
should agree with the counter, within the resolution of each instrument. It is possible for a fault in the
12000A to cause a frequency error even though the lock indicators show normal operation. For this
reason a number of specific frequencies are tested. Test frequencies have been selected so that any
defective circuits will be easily isolated.
4.2.2.2
Equipment Required
UUT
²
Frequency Counter
²
Coaxial Cable
4.2.2.3
Procedure
1.
Connect the equipment as shown in Figure 4-1. Connect the 12000A RF Output to the 10 to
500 MHz counter input using the coaxial cable and the SMA to BNC adapter. Allow the
equipment to warm up for at least 30 minutes. Because the 12000A and the counter use the same
timebase, timebase errors are eliminated. The 12000A will automatically switch to the external
reference when it is connected.
2.
Set the 12000A to 10 MHz. Press
[LEVEL]
in the POWER field and enter
[-] [1] [0] [DBM]
. Press
[RF ON]
in the RF OUTPUT field to turn on the RF output.
3.
Set the 12000A to each frequency listed on the data sheet and verify that the counter reads the set
frequency plus or minus the counter resolution. This tests each divider stage.
4.
Connect the 12000A RF Output to the 500 MHz to 26.5 GHz input on the counter and continue
with the divider tests.
5.
To check that the multipliers are functioning properly, refer to the test data sheet and program each
of the listed frequencies into the 12000A by entering (for example)
[CW] [2] [0] [0] [1] [MHZ]
. For
each listed frequency the counter should read the entered frequency
±
1 Hz, plus or minus the
counter resolution. Ignore all frequencies outside the range of the instrument under test.
Figure 4-1: Frequency Range, Resolution & Accuracy
Summary of Contents for Series 12000A
Page 3: ...DECLARATION OF CONFORMITY ...
Page 4: ......
Page 11: ...Preface Publication 31231 Rev J October 2003 vii ...
Page 14: ...Series 12000A Microwave Synthesizers x Publication 31231 Rev J October 2003 ...
Page 18: ...Series 12000A Microwave Synthesizers xiv Publication 31231 Rev J October 2003 ...
Page 20: ...Series 12000A Microwave Synthesizers xvi Publication 31231 Rev J October 2003 ...
Page 22: ...Series 12000A Microwave Synthesizers xviii Publication 31231 Rev J October 2003 ...
Page 24: ...Series 12000A Microwave Synthesizers xx Publication 31231 Rev J October 2003 ...
Page 62: ...Series 12000A Microwave Synthesizers 1 38 Publication 31231 Rev J October 2003 ...
Page 234: ...Series 12000A Microwave Synthesizers B 2 Publication 31231 Rev J October 2003 ...
