2.3.6.4.4. Sampling rate and decimations
Examples of decimations and time scales of a buffer are given in the tables below.
Note
The table lists only a few decimation examples, users can in practice use the following decimations:
SCPI commands:
OS 2.00-30 and higher: [1, 2, 4, 8, 16, 17, 18, …, 65535, 65536] - (powers of 2 up to 16 and then any whole number up to 65536) - ACQ:DEC:F
OS 2.00-23 and lower: [1, 2, 4, 8, 16, 64, 256, …, 32768, 65536] - (powers of 2 up to 65536) - ACQ:DEC
API commands:
OS 2.00-23 and higher: [1, 2, 4, 8, 16, 17, 18, …, 65535, 65536] - (powers of 2 up to 16 and then any whole number up to 65536) - rp_AcqSetDecimationFactor
STEMlab 125-14, STEMlab 125-10, STEMlab 125-14 4-Input:
Decimation |
Sampling Rate |
Time scale/length of a buffer |
Trigger delay in samples |
Trigger delay in seconds |
1 |
125 MS/s |
131.072 us |
from - 8192 to x |
-6.554E-5 to x |
8 |
15.6 MS/s |
1.049 ms |
from - 8192 to x |
-5.243E-4 to x |
64 |
1.953 MS/s |
8.389 ms |
from - 8192 to x |
-4.194E-3 to x |
1024 |
122.07 kS/s |
134.218 ms |
from - 8192 to x |
-6.711E-2 to x |
8192 |
15.258 kS/s |
1.074 s |
from - 8192 to x |
-5.369E-1 to x |
65536 |
1.907 kS/s |
8.590 s |
from - 8192 to x |
-4.295E+0 to x |
SDRlab 122-16:
Decimation |
Sampling Rate |
Time scale/length of a buffer |
Trigger delay in samples |
Trigger delay in seconds |
1 |
122.8 MS/s |
133.42 us |
from - 8192 to x |
-6.671E-5 to x |
8 |
15.35 MS/s |
1.067 ms |
from - 8192 to x |
-5.335E-4 to x |
64 |
1.918 MS/s |
8.538 ms |
from - 8192 to x |
-4.269E-3 to x |
1024 |
119.92 MS/s |
136.622 ms |
from - 8192 to x |
-6.831E-2 to x |
8192 |
14.99 kS/s |
1.092 s |
from - 8192 to x |
-5.460E-1 to x |
65536 |
1.8737 kS/s |
8.743 s |
from - 8192 to x |
-4.371E+0 to x |
SIGNALlab 250-12:
Decimation |
Sampling Rate |
Time scale/length of a buffer |
Trigger delay in samples |
Trigger delay in seconds |
1 |
250 MS/s |
65.536 us |
from - 8192 to x |
-3.227E-5 to x |
8 |
31.250 MS/s |
0.524 ms |
from - 8192 to x |
-2.621E-4 to x |
64 |
3.906 MS/s |
4.194 ms |
from - 8192 to x |
-2.097E-3 to x |
1024 |
244.14 kS/s |
67.108 ms |
from - 8192 to x |
-3.355E-2 to x |
8192 |
30.517 kS/s |
0.536 s |
from - 8192 to x |
-2.684E-1 to x |
65536 |
3.814 kS/s |
4.294 s |
from - 8192 to x |
-2.147E+0 to x |