5.Resolution Bandwidth Selectivity Test

6.Read the 60 dB bandwidth for the 3 MHz resolution bandwidth setting from the MARKER A frequency readout (see Figure 2-7) and record the value in Table 2-9.

7.Vary spectrum analyzer settings according to Table 2-9. Measure the 60 dB bandwidth for each resolution bandwidth setting by the procedure of steps 4 through 6 and record the value in ‘fable 2-9.

8.Record the 3 dB bandwidths from Table 2-8 in Table 2-9.

9.Calculate the bandwidth selectivity for each setting by dividing the 60 dB bandwidth by the 3 dB bandwidth. The bandwidth ratios should be less than the maximum values shown in

‘fable 2-9.

10.The 60 dB bandwidth for the 10 Hz resolution bandwidth setting should be less than 100 Hz.

Figure 2-7. 60 dB Bandwidth Measurement

2 - 1 6 P e r f o r m a n c e T e s t s