3-7 Spurious Signals Tests
Chapter 3 — Performance Verification
3-6
PN: 10370-10372 Rev. B
MG3702xA MM
3.
On the keypad, press
2
to ENABLE the external frequency measurement option. (Pressing
3
will
DISABLE the option.)
4.
Confirm that the external frequency measurement option is enabled and the unit is locked by observing
an asterisk (*) in row 1, column 35 of the display. If “NOTLK” appears, the frequency standard is not
locked and testing must be halted. If no asterisk (*) appears, the unit is not properly connected.
5.
Confirm that the measurement count has started to change incrementally. This will be displayed in
row 1, columns 20 through 29 of the display. Allow approximately 5 minutes for everything to stabilize.
6.
On the test record, record the date and time of the test start and the frequency offset displayed in
row 1, column 9 through 17 as the frequency error value.
7.
After 24 hours, on the keypad, press
3
to disable the measurement. Note that the asterisk (*) will
disappear.
8.
On the test record, record the date and time of test completion, and the frequency offset displayed in
row 1, column 9 through 17 as the frequency error value (after 24 hours).
9.
The aging rate is the difference between frequency error value and frequency value (after 24 hours).
Compare it to the upper limit and record the computed result in
Base Aging Rate Test (Optional)”
.
3-7
Spurious Signals Tests
For the following tests, refer to the test record table in
“Section 3-7 Harmonics and Harmonically
Related Signals Test (without Option 15)”
.
The following tests can be used to verify that the signal generator meets its spurious emissions specifications
for RF output signals from 0.01 to 20 GHz.
The MG3702xA's CW RF output signal is fed directly into a spectrum analyzer. The CW frequency and power
level is referenced and a peak search function on the spectrum analyzer is utilized to find any spurious signals
above the specified limit.
Note
Before performing this procedure ensure that all test equipment is calibrated. Refer to the
manufacturer’s test equipment manual.
Figure 3-2.
Equipment Setup for Spurious Signals Test
6 dB
BNC
Attenuator
MG3702xA
EXT REF
Input
10 MHz
REF Out
RF Out
MG37022A
Signal
Generator
Standby
Operate
Agilent 8565EC
Spectrum Analyzer
RF In
Содержание MG3702xA Series
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Страница 24: ...1 12 Test Equipment List Chapter 1 General Information 1 10 PN 10370 10372 Rev B MG3702xA MM ...
Страница 42: ...2 5 RF Deck Assemblies Chapter 2 Functional Description 2 18 PN 10370 10372 Rev B MG3702xA MM ...
Страница 120: ...5 5 Troubleshooting Tables Chapter 5 Troubleshooting 5 24 PN 10370 10372 Rev B MG3702xA MM ...
Страница 144: ...6 13 RF Components Chapter 6 Removal and Replacement Procedures 6 24 PN 10370 10372 Rev B MG3702xA MM ...
Страница 178: ...B 1 MG3702xA Technical Data Sheet Appendix B Performance Specifications B 2 PN 10370 10372 Rev B MG3702xA MM ...
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