Anritsu Series MS278XB operation manual Swept Resolution Bandwidth

Measurements Operation Verification

Swept Resolution Bandwidth

The following test can be used to verify that the MS2781B is within its Swept Resolution Bandwidth Accuracy specifications.

Test Setup

Connect the equipment as shown in the figure below:

Figure 5-51.Equipment Setup for Swept Resolution Bandwidth Test

Test Procedure

1.Set up the instruments as shown in Figure 5-51.

2.Turn on both the MS2781B Signal Analyzer and the MG369XB Signal Generator and allow them to warm up for one hour.

3.Press the Preset key on the MS2781B to reset the instrument to factory default state.

4.Set the MS2781B to use External Reference signal.

5.Set the output level of the MG369XB to 6 dBm.

6.Set the output frequency of the MG369XB to 100 MHz CW.

7.Set up the MS2781B as follows:

a.Reference Level: 0 dBm

b.Attenuation: Auto

c.VBW: Auto

d.Center Frequency: 100 MHz

8.Set the Span Frequency and the RBW on the MS2781B to the values listed in the first row of Table 5-6.

9.On the MS2781B, set Peak to CF.

10.Set the MS2781B to measure 3 dB OBW.

11.Verify that the measured OBW is within specifications listed in Table 5-6.

MS278XB OM 5-79