User`s manual

Table Of Contents
A better approach is to center the sinusoid to the nearest spectral line i.e. 999.75Hz
as shown in the next figure. Note the use of the multimeter as frequency counter;
note also that its precision is of 0.1Hz when FFT size is higher than 32k.
If you want to generate a full spectrum signal choose an All-tone of proper length
matching FFT size. The following figure shows a 16k All-tone (all16384.sig)
analyzed with a 16k FFT.
104 9 FFT, RTA AND “LIVE” TRANSFER FUNCTION