Remote Control Commands > SOURce Subsystem > SOURce:SWEep Subsystem > [:SOURce<hw>]:SWEep:POWer:STEP[:LOGarithmic]
[:SOURce<hw>]:SWEep:POWer:STEP[:LOGarithmic] <Logarithmic>

Sets a logarithmically determined sweep step size for the RF level sweep. It is expressed in decibels and you must enter the value and the unit dB with the command.

The level is increased by a logarithmically calculated fraction of the current level according to:

step_sizen+1 = Leveln + step_sizen x Leveln

Leveln+1 = Leveln + step_sizen+1

with LevelSTARt < levelSTOP, step_size = SWE:POW:STEP[:LOG] and n = number of sweep steps

This parameter correlates with the number of steps SWE:POW:POIN within the sweep range as follows:

level_points = ((LevelSTOP - LevelSTARt) / step_size) + 1)

If you change the step size, the number of steps changes accordingly. The sweep range remains the same.

Parameters:
<Logarithmic>
float
Increment: 0.01
*RST:1
Example: SWE:POW:STEP 10dB

sets the step width for logarithmic sweep spacing to 10 dB of the previous level in each instance (for a level sweep).

Manual operation: See "Step - Level Sweep"

 


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