#### [SENSe<Ch>:]LPORt...

This subsystem controls the frequency reference oscillator.

Command tree: [SENSe<Chn>:]LPORt<log_port>

:ZCOMmon

:ZDIFferent

##### [SENSe<Ch>:]LPORt<log_port>:ZCOMmon <real>[, <imaginary>]

Specifies the complex common mode reference impedance for the balanced (logical) port numbered <log_port>.

<Ch> | Channel number. If unspecified the numeric suffix is set to 1.
<log_port> | Logical port number. The logical ports must be defined using SOURce<Ch>:LPORt<log_port> <phys_port1>,<phys_port2> . An n port analyzer supports a maximum of n/2 (n even) or (n – 1)/2 (n odd) logical ports.
<real> <imaginary> | Real and imaginary part of the port impedance. <imaginary> may be omitted to define a real impedance.
Range [def. unit] | 1mW to 10 MW for the real part [W] – 10 MW to 10 MW for the imaginary part [W]
*RST value | 25 W (real impedance)
SCPI, Command Types | Device-specific, command or query
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:ZCOM 27, 2 Specify a complex common mode reference impedance of 27W + j * 2W for the defined port.

##### [SENSe<Ch>:]LPORt<log_port>:ZDIFferent <real>[, <imaginary>]

Specifies the complex differential mode reference impedance for the balanced (logical) port numbered <log_port>.

<Ch> | Channel number. If unspecified the numeric suffix is set to 1.
<log_port> | Logical port number. The logical ports must be defined using SOURce<Ch>:LPORt<log_port> <phys_port1>,<phys_port2> . An n port analyzer supports a maximum of n/2 (n even) or (n – 1)/2 (n odd) logical ports.
<real> <imaginary> | Real and imaginary part of the port impedance. <imaginary> may be omitted to define a real impedance.
Range [def. unit] | 1mW to 10 MW for the real part [W] – 10 MW to 10 MW for the imaginary part [W]
*RST value | 100 W (real impedance)
SCPI, Command Types | Device-specific, command or query
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 27W + j * 2W for the defined port.