We also use RFmx Waveform Creator to generate some tone signal , but there is not related information about the setting parameters in help documents.
In RFmx WFC Tones plugin, when ‘Auto Settings’ is checked, File Length, Sample Rate and Number of Samples are calculated as follows.
File LengthFile Length = 1 / resolutionwhere resolution is calculated as the power of 10 of the smallest non-zero digit location among the tone frequencies.
Let Tone frequencies specified be 15 kHz and 20 kHz.
Smallest non-zero digit location in 15 kHz is 3
Smallest non-zero digit location in 20 kHz is 4
Minimum among the above is 3.
Hence resolution = 10^3 = 1 kHz
Sample RateSample Rate is calculated according to the following table.
Maximum Tone Frequency (f)
f <= 8 kHz
8 kHz < f <= 30 kHz
30 kHz < f <= 80 kHz
80 kHz < f <= 300 kHz
300 kHz < f <= 800 kHz
800 kHz < f <= 3 MHz
3 MHz < f < 15 MHz
15 MHz <= f <= 50 MHz
(floor((4 * f)/1M + 0.5)) MHz
f > 50 MHz
(floor((2.5 * f)/1M + 0.5)) MHz
Number of SamplesNumber of Samples = File Length * Sample Rate
Note: The minimum value for Number of Samples is 3000. If the above calculated Number of Samples is less than the minimum value, it is multiplied by an integer factor so that the resulting Number of Samples is greater than or equal to the minimum value. File Duration is updated accordingly.
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