Working on two-way radio equipment I setup my DSOX2024 Math/FFT function to display the audio spectrum. The reduced span settings change from 5 to 2 KHz. Is there a way to force the span to a 3KHz setting? The radio's audio response is similar to a "C" message filter response and 5KHz only spans about one half the display and 2 KHz spans the whole screen but it cut's off the upper 1KHz.
OR it should be doable over the bus:
:FUNCtion:SPAN <span>
<span> ::= the current frequency span in NR3 format. Legal values are
1 Hz to 100 GHz.
If you set the frequency span to a value outside of the legal range, the
step size is automatically set to the nearest legal value.
The :FUNCtion:SPAN command sets the frequency span of the display (left
graticule to right graticule) when FFT (Fast Fourier Transform) is selected.