3-7 Input Related Spurious (IRS) Signals Spectrum Analyzer Performance Verification
3-14 PN: 10580-00307 Rev. D MS20xxC MM
3-7 Input Related Spurious (IRS) Signals
The following test is used to verify the input related spurious signals 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. 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 VNA Master to the
default starting conditions.
6. Press the Shift key, the Sweep (3) key, press the Sweep Mode soft key, and then press the Performance
soft key to set the VNA Master to Performance Sweep mode.
7. Connect the output of the Synthesized Signal Generator to the Spectrum Analyzer RF In connector of the
VNA Master.
1000 MHz Input Related Spurious Check
8. Set the MG3692X output to 1000 MHz CW, with an RF output level of –30 dBm.
9. On the MS203xC VNA Master, press the Amplitude hard key and then the Reference Level soft key.
10. Enter –27 and then press the dBm soft key to set Reference Level to –27 dBm.
11. Press the Atten Lvl soft key.
12. Enter 0 and then press the dB soft key to set Atten Lvl to 0 dB.
13. Press the Detection soft key and then the Peak soft key to set the instrument to Peak Detection Mode.
14. Press the Freq hard key and then the Center Freq soft key.
15. Enter 1000 and then press the MHz soft key to set Center Freq to 1000 MHz.
16. Press the Span hard key.
17. Enter 2 and then press the MHz soft key to set Span to 2 MHz.
18.
Press the BW hard key and then the RBW soft key.
19. Enter 1 and then press the kHz soft key to set RBW to 1 kHz.
20. Press the VBW soft key.
21. Enter 100 and then press the Hz soft key to set VBW to 100 Hz.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
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