Anritsu Spectrum Master MS2723B Maintenance Manual page 27

Performance Verification
Figure 2-6. 2400 MHz TOI Verification – Test Setup
12. Turn On the RF of the MG3692x and the 8648D.
13. Press the Shift key and then the Trace (5) key. Press Trace A Operations, and set # of Averages to 2.
14. After two sweeps have occurred (Trace Count 2/2 appears on the left of the display), turn on a marker, and
press Peak Search. Record the amplitude of the signal at 2400.151 MHz in
Analyzer Third Order Intercept" on page
15. Change the Center Frequency of the MS2723B or MS2724B to 2399.851 MHz. Record the amplitude of
this signal in Table
16. Determine which signal is larger (the 2399.851 MHz signal or the 2400.151 MHz signal). Use the larger
value for max in the following formula to calculate the TOI for 2400 MHz (refer to the example
calculation below the formula):
TOI = –20 + [(–20 – max)/2] dBm
Example: Assume max = –90 dBm, then: TOI = –20 + [(–20 – (–90))/2] = +15 dBm
17. Record the calculated 2400 MHz TOI measurement in
Models MS2723B and MS2724B MM
Adapter
34NN50A
MS2724B
2 dB 6 dB 20 dB
Attenuators
MG3692A
A-4.
A-9.
PN: 10580-00165 Rev. D
2-2 Spectrum Analyzer Function Verification
ML2438A Power Meter
20 dB 6 dB 2 dB
Power Attenuators
Splitter
1870A
Agilent 8648D
To
Rear
10 MHz Reference
Table A-9.
Sensor
9
7 8
5 6
4
1 2 3
0 . +/-
Table A-9, "Spectrum
2-13