Spectrum Analyzer Resolution Bandwidth Accuracy Test - Anritsu Spectrum Master MS2721A Maintenance Manual

2.8. Spectrum Analyzer Resolution Bandwidth Accuracy Test

The following test can be used to verify the resolution bandwidth accuracy of the Spectrum Master at different frequen-
cies.
a. Equipment Required:
· Anritsu MG3692A Synthesized Signal Source with options 2A, 3, 4, 15A, and 22, or equivalent
· Anritsu Spectrum Master External Power Supply (Anritsu part number 40-168)
· 10 MHz Reference Standard
· Anritsu 34RSN50 50 Ohm adapter or equivalent
· Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent
· BNC male to BNC male coaxial cable
b. Procedure:
1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.
2. Connect the output of the Anritsu MG3692A Synthesized Signal Source to the Spectrum Master
3. Connect the external power supply (Anritsu part number 40-168) to the Spectrum Master.
4. Press the
Shift
conditions.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
5. Set the MG3692A output to 1 GHz, with an RF output level of –30 dBm.
6. Press the
Amplitude
7. Use the keypad to enter –10 and press the
8. Press the
Atten Lvl
9. Press the
Scale
10. Press the
Freq
11. Use the keypad to enter 1 and select the
RBW Test
12. Press the
Span
13. Press the
BW
14. Use the keypad to enter 3 and select the
15. Set the VBW according to Table 5 below.
16. Press the
Shift
17. Press the
dBc
18. Press the
OCC BW On/Off
19. Record the OCC BW reading in Table 5 below.
20. Verify that the OCC BW reading frequency is ±10% of the RBW.
Spectrum Master MM
key, the (1) key, and then the
Preset
key and select the
Reference Level
soft key and enter 0, then press the
soft key and enter 10, then press
key and select the
Center Freq
GHz
key, use the keypad to enter the span according to Table 5 below.
key and select the soft key.
RBW
MHz
key then (4) key, then press the
Measure
soft key and enter 3, then press the
soft key to turn on occupied bandwidth.
soft key to reset the instrument to the default starting
Preset
soft key.
soft key.
dBm
soft key.
dB
soft key.
dB/div
soft key.
soft key.
soft key.
soft key.
OCC BW
key.
Enter
.
RF In
15