VXI VT1433B User Manual
Page 56
Table of Baseband Measurement Spans (part 1 of 6)
All values are in Hertz (Hz).
sample
frequency
(Fs) —>
48000
50000
51200
number of ÷2
steps
with ÷5
without ÷5
with ÷5
without ÷5
with ÷5
without ÷5
0
3750.000000
18750.000000*
3906.250000
19531.250000*
4000.000000
20000.000000*
1
1875.000000
9375.000000
1953.125000
9765.625000
2000.000000
10000.000000
2
937.500000
4687.500000
976.562500
4882.812500
1000.000000
5000.000000
3
468.750000
2343.750000
488.281250
2441.406250
500.000000
2500.000000
4
234.375000
1171.875000
244.140625
1220.703125
250.000000
1250.000000
5
117.187500
585.937500
122.070312
610.351562
125.000000
625.000000
6
58.593750
292.968750
61.035156
305.175781
62.500000
312.500000
7
29.296875
146.484375
30.517578
152.587891
31.250000
156.250000
8
14.648438
73.242188
15.258789
76.293945
15.625000
78.125000
9
7.324219
36.621094
7.629395
38.146973
7.812500
39.062500
10
3.662109
18.310547
3.814697
19.073486
3.906250
19.531250
11
1.831055
9.155273
1.907349
9.536743
1.953125
9.765625
12
0.915527
4.577637
0.953674
4.768372
0.976562
4.882812
13
0.457764
2.288818
0.476837
2.384186
0.488281
2.441406
14
0.28882
1.144409
0.238419
1.192093
0.244141
1.220703
15
0.114441
0.572205
0.119209
0.596046
0.11207
0.610352
16
0.057220
0.286102
0.059605
0.298023
0.061035
0.305176
Notes:
* For the top span, the 3 dB bandwidth is 1.15 times span shown.
To select sample frequency for time domain data, first divide the desired sample
frequency by 2.56 to convert it to a measurement span. Then locate the closest
measurement span on this table and choose the corresponding sample frequency at
the top of the table.
VT1433B User's Guide
Using the VT1433B
3-18