R&S SGT100A, Руководство пользователя

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Signal Generator Settings
R&S
®
SGT100A
208 User Manual 1176.8674.02 ─ 07
"Strictly Monotone"
Provides level setting without discontinuities. All electronic switches in
the RF path are clamped. The operation mode is useful for applica-
tions using level searching algorithms.
This mode further reduces the dynamic range of the instrument. The
step attenuator is also fixed.
"Constant-VSWR"
Suppresses output impedance variations at the RF OUT connector
due to changed level setting.
This mode reduces the dynamic range of the instrument. The step
attenuator is fixed.
Remote command:
[:SOURce]:POWer:SCHaracteristic
on page 468
Level Range
Displays the level range within which the level setting is expected to work properly. The
range limits depend on several parameters like "Mode", "Setting Characteristic", the I/Q
signal's crest factor etc.
Remote command:
[:SOURce]:POWer:RANGe:LOWer?
on page 469
[:SOURce]:POWer:RANGe:UPPer?
on page 469
Limit
Sets the level limit.
The value specifies the upper limit of the level at the RF OUT connector. A message
appears if an attempt is made to set a level above this limit and the level at the RF out-
put is confined to the upper limit. However, the level indication is not influenced.
Remote command:
[:SOURce]:POWer:LIMit[:AMPLitude]
on page 467
Readjust
Recalculates the instrument internal settings optimized for the current level. Not
required for automatic modes.
Remote command:
[:SOURce]:POWer:ALC:SONCe
on page 466
RF Settings