S3xxE MM PN: 10580-00253 Rev. J 2-1
Chapter 2 — Spectrum Analyzer Verification
2-1 Frequency Accuracy Verification and Adjustment
The following procedure is used to verify and adjust the CW frequency accuracy of the Spectrum Analyzer in
the S332E and S362E Site Master. Adjustment to the frequency accuracy can be performed on units using
Application Package version 1.56 or greater.
Equipment Required
• Anritsu MG3692X Synthesized Signal Source
• 10 MHz Reference Standard
• Anritsu 34RKNF50 50 ohm Adapter
• Anritsu 15NN50-1.5C RF Coaxial Cable
• BNC male to BNC male Coaxial Cable
Procedure
1. Connect the 10 MHz Reference source to the Anritsu MG3692X Synthesized Signal Source.
2. Turn on the 10 MHz Reference Standard and the Anritsu MG3692X Synthesized Signal Source.
3. Set the MG3692X output to 1GHzCW, with an RF Output Level of –30 dBm.
4. Connect the output of the source to the RF In of the Site Master.
5. Turn on the Site Master.
6. Press the Shift key and then the Mode (9) key. Rotate the knob to highlight Spectrum Analyzer and then
press the Enter key to switch to Spectrum Analyzer mode.
7. Press the Shift key, the Preset (1) key, and then the Preset soft key to reset the instrument to the default
starting conditions.
8. Press the Shift key, the Sweep (3) key, then the Sweep Mode soft key, and press the Performance soft key.
9. Press the Amplitude soft key and then press the Reference Level soft key.
10. Use the keypad to enter –10 and press the dBm soft key.
11. Press the Span soft key, use the keypad to enter 10, and press the kHz soft key.
12. Press the BW soft key and press the RBW soft key.
13. Use the keypad to enter 100 and press the Hz soft key.
14. Press the VBW soft key, use the keypad to enter 30 and then press the Hz soft key.
15. Press the Freq soft key and press the Center Freq soft key.
16. Use the keypad to enter 1 and press the GHz soft key.
17. Press the Marker soft key, then the More soft key, set Counter Marker to On, press the Back soft key, and
then press the Peak Search soft key.
18. Verify that the marker frequency is 1 GHz ± 1.5 kHz (± 1.5 ppm). If the marker frequency is within the
specification, then record in Table A-1, “Spectrum Analyzer Frequency Accuracy”, skip Step 19 through
Note Do not connect the external 10 MHz Reference to the Site Master.
Note Without the Counter Marker On the frequency resolution will not allow viewing to kHz accuracy.
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