Command reference
R&S
®
ZNB/ZNBT
1311
User Manual 1173.9163.02 ─ 62
AUTO
automatic/adaptive gain control (AGC) according to the RF input
level
LDIStortion
fixed, small IF gain, for high input levels
LNOise
fixed, large IF gain, for low input levels
*RST:
LDIStortion
Parameters for setting and query:
<ReceiverName>
String parameter defining the wave(s) followed by the drive port;
see examples below and
Example:
*RST; :SENSe:POWer:GAINcontrol:GLOBal MANual
Activate independent GC settings for each drive port.
SENSe:SEGMent1:ADD; :SENSe:SWEep:TYPE SEGMent
Create a new sweep segment no. 1 and activate segmented
sweep type.
SENSe:SEGMent1:POWer:GAINcontrol:CONTrol ON
Enable segmented GC.
SENSe:SEGMent1:POWer:GAINcontrol 'B2D1', LNO
Set the ACG for the received wave b
2
(port 2) in sweep segment
no. 1 to "Low Noise". The setting applies while port 1 is the drive
port.
SENSe:SEGMent1:POWer:GAINcontrol 'A2B2B3D2',
LNO
Set the ACG for the waves a
2
, b
2
, and b
3
in sweep segment no.
1 to "Low Noise". The setting applies while port 2 is the drive
port.
SENSe:SEGMent1:POWer:GAINcontrol? 'B1D2'
Query the ACG setting for the wave b
1
in sweep segment no. 1
while port 2 is the drive port. The response is
1, LDIS
(default
setting).
Manual operation:
See
[SENSe<Ch>:]SEGMent<Seg>:POWer:GAINcontrol:ALL
<Mode>
For the selected segment, this command applies the same manual gain control (GC)
<Mode> to all a and b wave receivers.
These settings apply if and only if segmented GC is enabled (see
]SEGMent<Seg>:POWer:GAINcontrol:CONTrol
).
Note:
●
Without the
option only the gain of the measurement receiv-
ers (the b waves) can be statically set (to LNOise or LDIStortion); the reference
receiver always uses automatic gain control (AUTO). With the option available,
also the gain of the reference receivers (the a waves) can be set statically.
SCPI command reference
