Configuring the Signal in the RF Domain
R&S
®
SMW200A
528User Manual 1175.6632.02 ─ 16
"Auto"
Selects the detector sensitivity automatically, according to the given
level.
This mode is the recommended operation mode.
"Low"
Selects the detector path with low sensitivity.
This setting is intended for signals with high internal electronic levels.
"Med"
Selects the path with medium sensitivity.
This setting corresponds to normal mode. It is intended for signals
with medium internal electronic levels.
"High"
Selects the detector path with high sensitivity, intended for signals
with low internal electronic levels.
"Fix"
Fixes the last set sensitivity setting.
Remote command:
[:SOURce<hw>]:POWer:ALC:DSENsitivity on page 1093
Driver Amplifier
Selects the switching state of the driver amplifier, that means the switchable amplifier
or attenuator at the output.
"Auto"
Switches the attenuator automatically.
"On/Off"
The driver amplifier is switched on, or off respectively.
"On (maximum Gain)"
The driver amplifier is switched on.
The R&S SMW supplies the maximum level at the output within the
frequency range 6 GHz to 10 GHz.
Note: In this mode, the harmonics increase.
"Fix"
Fixes the last setting.
The Readjust button switches the driver amplifier state first to auto-
matic, calculates all level settings and then resets to fix.
Remote command:
[:SOURce<hw>]:POWer:ALC:DAMPlifier on page 1092
Sample Level
Determines the level at the output of the instrument during the sample process.
"Full"
Provides the currently set level.
NOTICE: Risk of DUT damage due to high input power
The settings combination "ALC > Sample Level > Full" and "ALC >
State > Off (Sample &Hold)" or "ALC > State > Sample & On" results
in signals with large headroom. With this settings combination, the
R&S SMW generates a short sample pulse with full RF output power.
To protect the DUT from damage due to high input power, use the
setting "Sample Level > Attenuated" or "Sample Level > Minimum".
"Attenuated"
Attenuates the signal for about 40 dB to protect external devices like
the DUT from damage due to high input power.
"Minimum"
Attenuates the signal level with the maximum value.
Remote command:
[:SOURce<hw>]:POWer:ALC:SLEVel on page 1094
Improving Level Performance
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