Anritsu Spectrum Master MS2721B Maintenance Manual

Performance Verification 1 2-2 Spectrum Analyzer Function Verification
MS2721B MM PN: 10580-00177 Rev. D 2-15
15. Change the Center Frequency of the MS2721B to 599.851 MHz. Record the amplitude of this signal in
Table A-5.
16. Determine which signal is larger (signal at 599.851 MHz or signal at 600.151 MHz). Use the larger value
for "max" to calculate the TOI for 600 MHz (refer to the following example calculation):
TOI = –20 + [(–20 – max)/2] dBm
Example: Assume max = –90 dBm, then: TOI = –20 + [(–20 – (–90))/2] = +15 dBm
17. Record the 600 MHz TOI calculated measurement in Table A-7, “Spectrum Analyzer Calculated Third
Order Intercept” on page A-3.
3.5 GHz TOI Test
Procedure:
1. Remove the splitter "output" from the MS2721B Spectrum Analyzer RF In connector.
2. Set the MG3692x Synthesized Signal Generator to 3.499951 GHz, and the Agilent 8648D Signal
Generator to 3500.051 MHz.
3. Set the Agilent 8648D Signal Generator RF to OFF ("RF OFF" appears on the right side of the display).
4. On the ML2438A power meter, set the calibration factor of the power sensor to 3.5 GHz.
5. Connect the power sensor to the splitter "output" and adjust the power of the MG3692x so that –20 dBm
appears at the splitter "output" (approximately +16 dBm on the MG3692x), as shown in Figure 2-5.
6. Turn off the RF of the MG3692x Synthesized Signal Generator.
7. On the Agilent 8648D Signal Generator, turn on the RF and adjust the RF amplitude so that –20 dBm
appears at the splitter "output" (approximately +16 dBm on the 8684D).
8. Set the MS2721B to Spectrum Analyzer mode and then preset the instrument.
9. Set the MS2721B as follows:
Center Frequency: 3.500151 GHz
Span: 100 Hz.
RBW: 30 Hz
VBW: 1 Hz
Reference Level: –15 dBm
Attenuation Level: 0 dB
Pre Amp: Off
Detection: RMS
10. Disconnect the power sensor from the "output" of the splitter and connect the splitter "output" to the
MS2721B Spectrum Analyzer RF In connector through the Anritsu Model 34NN50A adapter, as shown
in Figure 2-6.
11. Turn on the RF of the MG3692x and of the 8648D signal generator.
12. Press the Shift key and then the Trace (5) key. Press Trace A Operations, and set # of Averages to 2.
13. 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 3.500151 GHz in Table A-6, “3.5 GHz TOI
Test” on page A-3.
14. Change the Center Frequency of the MS2721B to 3.499851 GHz. Record the amplitude of this signal in
Table A-6.

Anritsu Spectrum Master MS2721B Specifications

General

Brand	Anritsu
Model	Spectrum Master MS2721B
Category	Measuring Instruments
Language	English