Command reference
R&S
®
ZNB/ZNBT
1281User Manual 1173.9163.02 ─ 62
Example: Intermodulation spectrum measurement within the active chan-
nel.
*RST; FREQ:IMOD:LTON PORT,1; UTON GEN, 1
Reset the instrument to create the default channel no. 1. Select
port 1 as a source port for the lower tone, a (previously config-
ured) external generator no. 1 as a source port for the upper
tone.
FREQ:STAR 1GHZ; STOP 2GHz
Define a suitable sweep range to ensure that the analyzer can
measure all intermodulation products.
SENS1:FREQ:IMOD:SPEC ON
Enable the intermodulation spectrum measurement for channel
no. 1.
CALC1:PAR:CAT?
Query the traces in channel no. 1. The response is
'Trc1,B2D1SAM'.
SENS1:FREQ 1.5 GHz; :SENS1:FREQ:IMOD:SPEC:MORD
9
Adjust the center frequency and the maximum IM order of the
spectrum intermodulation diagram.
Example:
Intermodulation spectrum measurement in a new channel.
*RST; FREQ:IMOD:LTON PORT,1; UTON GEN, 1
Reset the instrument to create the default channel no. 1. Select
port 1 as a source port for the lower tone, a (previously config-
ured) external generator no. 1 as a source port for the upper
tone.
FREQ:STAR 1GHZ; STOP 2GHz
Define a suitable sweep range to ensure that the analyzer can
measure all intermodulation products.
CALC2:PAR:SDEF 'Trc2', 'S21'
Create a new channel no. 2 and a trace named 'Trc2'. Select S
21
as a measured quantity.
DISP:WIND:TRAC2:FEED 'Trc2'
Display the new trace in diagram no. 1.
SENS2:FREQ:IMOD:SPEC ON
Enable the intermodulation spectrum measurement for the new
channel no. 2.
CALC2:PAR:CAT?
Query the traces in channel no. 2. The response is
'Trc2,B2D1SAM'.
Manual operation:
See "CW Mode Spectrum" on page 583
[SENSe<Ch>:]FREQuency:IMODulation:TDIStance <ToneDistance>
Defines the tone distance (frequency offset) between the upper and the lower tone.
Suffix:
<Ch>
.
Channel number
SCPI command reference
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