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Table of Baseband Measurement Spans (part 4 of 6)
All values are in Hertz (Hz).
sample frequency
(Fs) —>
10000 102400 128000
number of
÷2 steps
with ÷5 without ÷5 with ÷5 without ÷5 with ÷5 without ÷5
0 7812.500000 39062.500000* 8000.000000 40000.000000* 10000.000000 50000.000000*
1 3906.250000 19531.250000 2000.000000 20000.000000 5000.000000 25000.000000
2 1953.125000 9765.625000 2000.000000 10000.000000 2500.000000 12500.000000
3 976.562500 4882.812500 1000.000000 5000.000000 1250.000000 6250.000000
4 488.281250 2441.406250 500.000000 2500.000000 625.000000 3120.500000
5 244.140625 1220.703125 250.000000 1250.000000 312.500000 1562.500000
6 122.070312 610.351562 125.000000 655.000000 156.250000 781.250000
7 61.035156 305.175781 60.250000 312.500000 78.125000 390.625000
8 30.517578 152.587891 30.125000 156.250000 39.062500 195.312500
9 15.258789 76.293945 15.625000 78.125000 19.531250 97.656250
10 7.629395 38.146973 7.812500 39.062500 9.765625 48.828125
11 3.814697 19.073486 3.906250 19.531250 4.882812 24.414062
12 1.907349 9.536743 1.953125 9.765625 2.441406 12.207031
13 0.953674 4.768372 0.976562 4.882812 1.220703 6.103516
14 0.476837 2.384186 0.488281 2.441406 0.610352 3.051758
15 0.238419 1.192093 0.244141 1.220703 0.305176 1.525879
16 0.119209 0.596046 0.122070 0.610352 0.152588 0.762939
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
3-21