3-4 Frequency Accuracy Spectrum Analyzer Performance Verification
3-6 PN: 10580-00307 Rev. D MS20xxC MM
3-4 Frequency Accuracy
The following test can be used to verify the frequency accuracy of the spectrum analyzer in VNA Master
models MS2036C, MS2037C and MS2038C.
Equipment Required
• 10 MHz Frequency Reference Standard, Symmetricom Model Rubisource T&M
• Synthesized Signal Generator, Anritsu Model MG3692X
• K(m) to N(f) Adapter, Anritsu Model 34RKNF50
• N(m) to N(m) RF Coaxial Cable, Anritsu Model 15NN50-1.0B
• BNC(m) to BNC(m) RF Coaxial Cable, Anritsu part number 2000-1627-R
• N(f) to K(m) Adapter, Anritsu 34NFK50 (for MS2038C with Option 11 Only)
Procedure
1. Connect the 10 MHz Reference to the Anritsu MG3692X Synthesized Signal Generator.
2. Turn on the 10 MHz Reference Standard and the Anritsu MG3692X Synthesized Signal Generator.
3. Press the On/Off key to turn on the MS203xC VNA Master.
4. On the MS203xC VNA Master, press the Shift key and then the Mode (9) key. Use the rotary knob to
highlight Spectrum Analyzer, and then press the Enter key to switch to Spectrum Analyzer mode.
5. Press the Shift key, the Preset (1) key, and then the Preset soft key to reset the instrument to the default
starting conditions.
6. Press the Shift key, the Sweep (3) key, and the Sweep Mode soft key, and then press the Performance soft
key to set the instrument to Performance Sweep mode.
7. Set the MG3692X output to 1 GHz CW, with an RF Output Level of –30 dBm.
8. Connect the output of the Synthesized Signal Generator to the Spectrum Analyzer RF Input of the
VNA Master.
9. On the MS203xC VNA Master, press the Amplitude hard key and then the Reference Level soft key.
10. Enter –10 and then press the dBm soft key to set Reference Level to –10 dBm.
11. Press the Span hard key.
12. Enter 10 and then press the kHz soft key to set Span to 10 kHz.
13. Press the BW hard key and then the RBW soft key.
14. Enter 100 and then press the Hz soft key to set RBW to 100 Hz.
15. Press the VBW soft key.
16. Enter 30 and then press the Hz soft key to set VBW to 30 Hz.
17. Press the Freq hard key and then the Center Freq soft key.
18.
Enter 1 and then press the GHz soft key to set Center Frequency to 1 GHz.
19. Press the Marker hard key and then the More soft key.
20. Press the Counter Marker soft key to turn it On.
Caution Do not connect the 10 MHz Reference to the VNA Master.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
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