Remote Control Commands
R&S
®
SMB100A
387Operating Manual 1407.0806.32 ─ 13
Manual operation: See "Shape - RF Level Sweep" on page 158
[:SOURce<hw>]:SWEep:POWer:SPACing:MODE?
The command queries the sweep spacing. The sweep spacing for level sweeps is always
linear.
Return values:
<Mode> LINear
*RST: LINear
Example:
SWE:POW:SPAC:MODE?
queries the sweep spacing for a level sweep at RF output.
Result: LIN
linear spacing
Usage: Query only
[:SOURce<hw>]:SWEep:POWer:STEP[:LOGarithmic] <Logarithmic>
The command sets the step width factor for logarithmic sweeps. The next level value of
a sweep is calculated (for STARt < STOP) using the following formula:
New level = Old level + STEP:LOG x Old level
STEP:LOG therefore gives the fraction of the old level. The level is increased by this
fraction for the next sweep step. Usually STEP:LOG is given in decibels, whereby the
suffix dB must always be used.
The command is linked to the command :SWEep:POWer:POINts for STARt < STOP
as follows:
POINts = ((STOP - STARt) / STEP:LOG) + 1
If STEP:LOG changes, the value of POINTs is adjusted. The STARt and STOP value is
retained.
Parameters:
<Logarithmic> float
Range: 0.01 to 139 dB
Increment: 0.01 dB
*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" on page 158
[:SOURce<hw>]:SWEep:RESet[:ALL]
The command resets all active sweeps to the starting point.
SOURce Subsystem
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