Used ONLY when calibrating more than 1-port. This key specifies the port pairs for the thru connections of the calibration.

All baseline calibrations of more than 1 port are required to set this value.

The number of thru pairs will always be one less than the number of ports being calibrated. If one is calibrating only 1 port then no thru pairs need to be specified and this key value is ignored. If one is calibrating 2 ports then the thru pair must be the set of those two ports (i.e calibrating ports 1 and 3 then the pair is 1:3). If one is calibrating more than 2 ports then one must select the appropriate thru pairs for the situation.

For example in a 4 port calibration, the thru pairs selected can be any three of the following:

1:2 , 1:3, 1:4, 2:3, 2:4, 3:4

Any combination of three of these port pairs can be used that are appropriate for the calibration.

This key corresponds with the PNA SCPI command "SENSe<ch>:CORRection:COLLect:GUIDed:THRU:PORTs <t1a, t1b, t2a, t2b, t3a, t3b...>" parameter as explained in the Keysight Documentation

An Example:

;*******************************************************************************
; Example configuration for a calibration type SParamWithPower using 4 ports
;*******************************************************************************
[CAL_SParamWithPower_4Port]
CalAcquireTimeoutSec = 200
CalSetDescription = CalSet for CAL_SParamWithPower_4Port
CalType = SParamWithPower
ConfigType = Calibration
DirectoryToUse = C:\Examples
PathName = PATH_SParamWithPower_4Port
PnaDisplayEnable = 0
PowerLevel = -10
PowerAverageCount = 1
PowerAverageTolerance = 0.02
PowerIterationCount = 30
PowerIterationTolerance = 0.05
PowerSensorPort = 1
ThruDelay1To2 = 30e-9
ThruDelay1To3 = 25e-9
ThruDelay1To4 = 27e-9
ThruPath1To2 = ICM_PATH_UnknownThru_1-2
ThruPath1To3 = ICM_PATH_UnknownThru_1-3
ThruPath1To4 = ICM_PATH_UnknownThru_1-4
ThruPortPairs = 1:2,1:3,1:4

; FCM definitions
[ICM_FCM1]
ConfigType = Fcm
IpAddress = 10.10.11.201

[ICM_FCM2]
ConfigType = Fcm
IpAddress = 10.10.11.202

[ICM_FCM3]
ConfigType = Fcm
IpAddress = 10.10.11.203

[ICM_FCM4]
ConfigType = Fcm
IpAddress = 10.10.11.204

; Path for test ports through to FCMs
[ICM_PATH_TestPortThru]
ConfigType = Path
SwitchPath = ICM_SW01:1,ICM_SW02:1,ICM_SW03:1,ICM_SW04:1,ICM_SW10:0

; Path for unknown thru between port 1 and 2
[ICM_PATH_UnknownThru_1-2]
ConfigType = Path
SwitchPath = ICM_SW01:2,ICM_SW02:2,ICM_SW03:2,ICM_SW04:2,ICM_SW05:4,ICM_SW06:1,ICM_SW07:1,ICM_SW08:4

; Path for unknown thru between port 1 and 3
[ICM_PATH_UnknownThru_1-3]
ConfigType = Path
SwitchPath = ICM_SW01:2,ICM_SW02:2,ICM_SW03:2,ICM_SW04:2,ICM_SW05:1,ICM_SW06:4,ICM_SW07:4,ICM_SW08:1

; Path for unknown thru between port 1 and 4
[ICM_PATH_UnknownThru_1-4]
ConfigType = Path
SwitchPath = ICM_SW01:2,ICM_SW02:2,ICM_SW03:2,ICM_SW04:2,ICM_SW05:3,ICM_SW06:3,ICM_SW07:3,ICM_SW08:3

; MultiSwitch controller
[ICM]
ConfigType = MultiSwitch
IpAddress = 10.10.11.100

; individual Switches
[ICM_SW01]
ConfigType = Switch
Device = ICM
SwitchIndex = 1

[ICM_SW02]
ConfigType = Switch
Device = ICM
SwitchIndex = 2

[ICM_SW03]
ConfigType = Switch
Device = ICM
SwitchIndex = 3

[ICM_SW04]
ConfigType = Switch
Device = ICM
SwitchIndex = 4

[ICM_SW05]
ConfigType = Switch
Device = ICM
SwitchIndex = 5

[ICM_SW06]
ConfigType = Switch
Device = ICM
SwitchIndex = 6

[ICM_SW07]
ConfigType = Switch
Device = ICM
SwitchIndex = 7

[ICM_SW08]
ConfigType = Switch
Device = ICM
SwitchIndex = 8

[ICM_SW09]
ConfigType = Switch
Device = ICM
SwitchIndex = 9

[ICM_SW10]
ConfigType = Switch
Device = ICM
SwitchIndex = 10

; Path defining FCMs to be used during calibration
[PATH_SParamWithPower_4Port]
ConfigType = Path
PnaPort1Device = ICM_FCM1:1
PnaPort2Device = ICM_FCM2:1
PnaPort3Device = ICM_FCM3:1
PnaPort4Device = ICM_FCM4:1
SwitchPath = ICM_PATH_TestPortThru

; PNA definition
[PNA-x]
ConfigType = Pna
DirectoryToUse = C:\Temp
IpAddress = 10.10.11.200