R&S ZNL, User Manual

Page: 948 / 1135

Command reference
R&S
®
ZNL/ZNLE
948 User Manual 1178.5966.02 ─ 19
<LogPt> Logical port number. The logical ports must be defined using
SOURce<Ch>:LPORt<LogPt> <PhysicalPort1>,
<PhysicalPort2>
. An n port analyzer supports a maximum of
n/2 (n even) or (n - 1)/2 (n odd) logical ports.
Parameters:
<RealPart> Real part of the port impedance.
Range:
1 mΩ to 10 MΩ
*RST: ZCOMmon: 25 Ω; ZDIFferent: 100 Ω (real impedan-
ces)
Default unit: Ohm
<ImaginaryPart> Imaginary part of the port impedance; may be omitted to define
a real impedance.
Range:
- 10 MΩ to 10 MΩ
*RST: 0 Ω (real impedances)
Default unit: Ohm
Example: *RST; :CALC:PAR:DEL 'TRC1'
Reset the analyzer and delete the (default) trace for channel no.
1.
SOUR:LPOR1 1,2
Combine the physical ports no. 1 and 2 to define the balanced
(logical) port no. 1.
LPOR1:ZDIF 27, 2
Specify a complex differential mode reference impedance of
27Ω + j * 2Ω for the defined port.
Manual operation: See "Single Ended Mode / Common Mode / Differential Mode"
on page 401
[SENSe<Ch>:]LPORt<LogPt>:ZDEFault[:STATe] <arg0>
Allows to toggle between default and renormalized reference impedance(s) for logical
port <LogPt>.
Suffix:
<Ch>
.
Channel number
<LogPt> Logical port number
Parameters:
<arg0> ON (1): Use default impedance(s)
OFF (0): Use the redefined impedances defined via
[SENSe<Ch>:]PORT<PhyPt>:ZREFerence
for single-ended
or via
[SENSe<Ch>:]LPORt<LogPt>:ZCOMmon
and
[SENSe<Ch>:]LPORt<LogPt>:ZDIFferent
for balanced
logical ports
Manual operation: See "Use Default" on page 402
VNA command reference