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Table of Baseband Measurement Spans (part 2 of 6)
All values are in Hertz (Hz).
sample frequency
(Fs) —>
64000 65536 51200
number of
÷2 steps
with ÷5 without ÷5 with ÷5 without ÷5 with ÷5 without ÷5
0 5000.000000 25000.000000* 5120.000000 25600.000000* 6000.000000 30000.000000*
1 25000.000000 12500.000000 2560.000000 12800.000000 3000.000000 15000.000000
2 1250.000000 6250.000000 1280.000000 6400.000000 1500.000000 7500.000000
3 625.000000 3125.000000 640.000000 6200.000000 750.000000 3750.000000
4 312.5000000 1562.500000 320.000000 1600.000000 375.000000 1875.000000
5 156.250000 781.250000 160.000000 800.000000 187.500000 937.500000
6 78.125000 390.625000 80.000000 400.000000 93.750000 468.750000
7 39.062500 195.312500 40.000000 200.000000 46.875000 234.375000
8 19.531250 97.656250 20.000000 100.000000 23.437500 117.187500
9 9.765625 48.828125 10.000000 50.000000 11.718750 58.593750
10 4.882812 24.414062 5.000000 25.000000 5.859375 29.296875
11 2.441406 12.207031 2.500000 12.500000 2.929688 14.648438
12 1.220703 6.103516 1.250000 6.250000 1.464844 7.324219
13 0.610352 3.051758 0.625000 3.125000 0.732422 3.662109
14 0.305176 1.525879 0.312500 1.562500 0.366211 1.831055
15 0.152588 0.762939 0.156250 0.781250 0.183105 0.915527
16 0.076294 0.381470 0.078125 0.390625 0.091553 0.457764
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
3-19