RTP Series API Programming Reference
1.2.1
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Functions | |
EXPORT int | PwrSnsr_GetChannelByIndex (SessionID Vi, int BuffSize, char Channel[], int Index) |
Gets the channel name by zero index. Note: SCPI commands use a one-based index. More... | |
EXPORT int | PwrSnsr_GetEnabled (SessionID Vi, const char *Channel, int *Enabled) |
Get the measurement state of the selected channel. When the value is true, the channel performs measurements; when the value is false, the channel is disabled and no measurements are performed. More... | |
EXPORT int | PwrSnsr_SetEnabled (SessionID Vi, const char *Channel, int Enabled) |
Get the measurement state of the selected channel. When the value is true, the channel performs measurements; when the value is false, the channel is disabled and no measurements are performed. More... | |
EXPORT int | PwrSnsr_GetSerialNumber (SessionID Vi, const char *Channel, int SerialNumberBufferSize, char SerialNumber[]) |
Gets the serial number of the sensor. More... | |
EXPORT int | PwrSnsr_GetChannelCount (SessionID Vi, int *Count) |
Get number of channels. More... | |
EXPORT int | PwrSnsr_GetUnits (SessionID Vi, const char *Channel, PwrSnsrUnitsEnum *Units) |
Get units for the selected channel. More... | |
EXPORT int | PwrSnsr_SetUnits (SessionID Vi, const char *Channel, PwrSnsrUnitsEnum Units) |
Set units for the selected channel. More... | |
EXPORT int | PwrSnsr_GetCurrentTemp (SessionID Vi, const char *Channel, double *CurrentTemp) |
Get current sensor internal temperature in degrees C. More... | |
EXPORT int | PwrSnsr_GetAverage (SessionID Vi, const char *Channel, int *Average) |
Get the number of traces averaged together to form the measurement result on the selected channel. More... | |
EXPORT int | PwrSnsr_SetAverage (SessionID Vi, const char *Channel, int Average) |
Set the number of traces averaged together to form the measurement result on the selected channel. More... | |
EXPORT int | PwrSnsr_GetBandwidth (SessionID Vi, const char *Channel, PwrSnsrBandwidthEnum *Bandwidth) |
Get the sensor video bandwidth for the selected sensor. More... | |
EXPORT int | PwrSnsr_SetBandwidth (SessionID Vi, const char *Channel, PwrSnsrBandwidthEnum Bandwidth) |
Set the sensor video bandwidth for the selected sensor. More... | |
EXPORT int | PwrSnsr_GetFilterState (SessionID Vi, const char *Channel, PwrSnsrFilterStateEnum *FilterState) |
Get the current setting of the integration filter on the selected channel. More... | |
EXPORT int | PwrSnsr_SetFilterState (SessionID Vi, const char *Channel, PwrSnsrFilterStateEnum FilterState) |
Set the current setting of the integration filter on the selected channel. More... | |
EXPORT int | PwrSnsr_GetFilterTime (SessionID Vi, const char *Channel, float *FilterTime) |
Get the current length of the integration filter on the selected channel. More... | |
EXPORT int | PwrSnsr_SetFilterTime (SessionID Vi, const char *Channel, float FilterTime) |
Set the current length of the integration filter on the selected channel. More... | |
EXPORT int | PwrSnsr_GetIsAvgSensor (SessionID Vi, const char *Channel, int *IsAvgSensor) |
Retruns true if sensor is average responding (not peak detecting). More... | |
EXPORT int | PwrSnsr_GetDistal (SessionID Vi, const char *Channel, float *Distal) |
Get the pulse amplitude percentage, which is used to define the end of a rising edge or beginning of a falling edge transition. More... | |
EXPORT int | PwrSnsr_SetDistal (SessionID Vi, const char *Channel, float Distal) |
Set the pulse amplitude percentage, which is used to define the end of a rising edge or beginning of a falling edge transition. More... | |
EXPORT int | PwrSnsr_GetEndGate (SessionID Vi, const char *Channel, float *EndGate) |
Get the point on a pulse, which is used to define the end of the pulse's active interval. More... | |
EXPORT int | PwrSnsr_SetEndGate (SessionID Vi, const char *Channel, float EndGate) |
Set the point on a pulse, which is used to define the end of the pulse's active interval. More... | |
EXPORT int | PwrSnsr_GetMesial (SessionID Vi, const char *Channel, float *Mesial) |
Get the pulse amplitude percentage, which is used to define the midpoint of a rising edge or end of a falling edge transition. More... | |
EXPORT int | PwrSnsr_SetMesial (SessionID Vi, const char *Channel, float Mesial) |
Set the pulse amplitude percentage, which is used to define the midpoint of a rising edge or end of a falling edge transition. More... | |
EXPORT int | PwrSnsr_GetProximal (SessionID Vi, const char *Channel, float *Proximal) |
Get the pulse amplitude percentage, which is used to define the beginning of a rising edge or end of a falling edge transition. More... | |
EXPORT int | PwrSnsr_SetProximal (SessionID Vi, const char *Channel, float Proximal) |
Set the pulse amplitude percentage, which is used to define the beginning of a rising edge or end of a falling edge transition. More... | |
EXPORT int | PwrSnsr_GetPulseUnits (SessionID Vi, const char *Channel, PwrSnsrPulseUnitsEnum *Units) |
Get the units for entering the pulse distal, mesial and proximal levels. More... | |
EXPORT int | PwrSnsr_SetPulseUnits (SessionID Vi, const char *Channel, PwrSnsrPulseUnitsEnum PwrSnsrPulseUnitsEnum) |
Set the units for entering the pulse distal, mesial and proximal levels. More... | |
EXPORT int | PwrSnsr_GetStartGate (SessionID Vi, const char *Channel, float *StartGate) |
Get the point on a pulse, which is used to define the beginning of the pulse's active interval. More... | |
EXPORT int | PwrSnsr_SetStartGate (SessionID Vi, const char *Channel, float StartGate) |
Set the point on a pulse, which is used to define the beginning of the pulse's active interval. More... | |
EXPORT int | PwrSnsr_GetCalFactors (SessionID Vi, const char *Channel, float *MaxFrequency, float *MinFrequency, int FrequencyListBufferSize, float FrequencyList[], int *FrequencyListActualSize, int CalFactorListBufferSize, float CalFactorList[], int *CalFactorListActualSize, PwrSnsrBandwidthEnum Bandwidth) |
Query information associated with calibration factors. More... | |
EXPORT int | PwrSnsr_GetCalFactor (SessionID Vi, const char *Channel, float *CalFactor) |
Get the frequency calibration factor currently in use on the selected channel. More... | |
EXPORT int | PwrSnsr_SetCalFactor (SessionID Vi, const char *Channel, float CalFactor) |
Set the frequency calibration factor currently in use on the selected channel. More... | |
EXPORT int | PwrSnsr_GetFrequency (SessionID Vi, const char *Channel, float *Frequency) |
Get the RF frequency for the current sensor. More... | |
EXPORT int | PwrSnsr_SetFrequency (SessionID Vi, const char *Channel, float Frequency) |
Set the RF frequency for the current sensor, and apply the appropriate frequency calibration factor from the sensor internal table. More... | |
EXPORT int | PwrSnsr_GetOffsetdB (SessionID Vi, const char *Channel, float *OffsetdB) |
Get a measurement offset in dB for the selected sensor. More... | |
EXPORT int | PwrSnsr_SetOffsetdB (SessionID Vi, const char *Channel, float OffsetdB) |
Set a measurement offset in dB for the selected sensor. More... | |
EXPORT int | PwrSnsr_GetTempComp (SessionID Vi, const char *Channel, int *TempComp) |
Get the state of the peak sensor temperature compensation system. More... | |
EXPORT int | PwrSnsr_SetTempComp (SessionID Vi, const char *Channel, int TempComp) |
Set the state of the peak sensor temperature compensation system. More... | |
EXPORT int | PwrSnsr_GetModel (SessionID Vi, const char *Channel, int ModelBufferSize, char Model[]) |
Gets the model of the meter connected to the specified channel. More... | |
EXPORT int | PwrSnsr_GetPeakHoldDecay (SessionID Vi, const char *Channel, int *EnvelopeAverage) |
Get the number of min/max traces averaged together to form the peak hold measurement results on the selected channel. More... | |
EXPORT int | PwrSnsr_GetPeakHoldTracking (SessionID Vi, const char *Channel, int *EnvelopeTracking) |
Returns whether peak hold decay automatically tracks trace averaging. If set to true, the peak hold decay and trace averaging values are the same. If set to false, peak hold decay is indepedent. More... | |
EXPORT int | PwrSnsr_SetPeakHoldTracking (SessionID Vi, const char *Channel, int EnvelopeTracking) |
Sets whether peak hold decay automatically tracks trace averaging. If set to true, the peak hold decay and trace averaging values are the same. If set to false, peak hold decay is indepedent. More... | |
EXPORT int | PwrSnsr_GetFirmwareVersion (SessionID Vi, const char *Channel, int FirmwareVersionBufferSize, char FirmwareVersion[]) |
Returns the firmware version of the power meter associated with this channel. More... | |
EXPORT int | PwrSnsr_SetPeakHoldDecay (SessionID Vi, const char *Channel, int PeakHoldDecay) |
Set the number of min/max traces averaged together to form the peak hold measurement results on the selected channel. More... | |
Channel related functions
Get the number of traces averaged together to form the measurement result on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Average |
EXPORT int PwrSnsr_GetBandwidth | ( | SessionID | Vi, |
const char * | Channel, | ||
PwrSnsrBandwidthEnum * | Bandwidth | ||
) |
Get the sensor video bandwidth for the selected sensor.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Bandwidth |
Get the frequency calibration factor currently in use on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
CalFactor |
EXPORT int PwrSnsr_GetCalFactors | ( | SessionID | Vi, |
const char * | Channel, | ||
float * | MaxFrequency, | ||
float * | MinFrequency, | ||
int | FrequencyListBufferSize, | ||
float | FrequencyList[], | ||
int * | FrequencyListActualSize, | ||
int | CalFactorListBufferSize, | ||
float | CalFactorList[], | ||
int * | CalFactorListActualSize, | ||
PwrSnsrBandwidthEnum | Bandwidth | ||
) |
Query information associated with calibration factors.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
MaxFrequency | Maximum RF frequency measureable by this channel. |
MinFrequency | Minimum RF frequency measureable by this channel. |
FrequencyListBufferSize | Number of elements in FrequencyList. |
FrequencyList | List of frequencies correlated to the cal factors. |
FrequencyListActualSize | Actual number of elements returned in FrequencyList. |
CalFactorListBufferSize | Number of elements in CalFactorList. |
CalFactorList | List of cal factors correlated to the frequencies. |
CalFactorListActualSize | Actual number of elements returned in CalFactorList. |
Bandwidth | Bandwidth of interest. Cal factors for low and high bandwidth are different. |
Gets the channel name by zero index. Note: SCPI commands use a one-based index.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
BuffSize | Buffer size for Channel |
Channel | Channel number buffer |
Index | the index of the channel |
Get number of channels.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Count | Number of channels |
Get current sensor internal temperature in degrees C.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
CurrentTemp |
Get the pulse amplitude percentage, which is used to define the end of a rising edge or beginning of a falling edge transition.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Distal |
Get the measurement state of the selected channel. When the value is true, the channel performs measurements; when the value is false, the channel is disabled and no measurements are performed.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Enabled | Boolean. 1 for enabled; 0 for disabled. |
Get the point on a pulse, which is used to define the end of the pulse's active interval.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
EndGate |
EXPORT int PwrSnsr_GetFilterState | ( | SessionID | Vi, |
const char * | Channel, | ||
PwrSnsrFilterStateEnum * | FilterState | ||
) |
Get the current setting of the integration filter on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
FilterState | State of the filter. |
Get the current length of the integration filter on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
FilterTime | Filter time in seconds. |
EXPORT int PwrSnsr_GetFirmwareVersion | ( | SessionID | Vi, |
const char * | Channel, | ||
int | FirmwareVersionBufferSize, | ||
char | FirmwareVersion[] | ||
) |
Returns the firmware version of the power meter associated with this channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
FirmwareVersionBufferSize | Size of the FirmwareVersion buffer. |
FirmwareVersion | Buffer to hold the firmware version. |
Get the RF frequency for the current sensor.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Frequency | RF Frequency in Hz. |
Retruns true if sensor is average responding (not peak detecting).
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
IsAvgSensor | True if sensor is average responding. |
Get the pulse amplitude percentage, which is used to define the midpoint of a rising edge or end of a falling edge transition.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Mesial |
EXPORT int PwrSnsr_GetModel | ( | SessionID | Vi, |
const char * | Channel, | ||
int | ModelBufferSize, | ||
char | Model[] | ||
) |
Gets the model of the meter connected to the specified channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
ModelBufferSize | Size of the buffer.. |
Model | Buffer where the model is read into. |
Get a measurement offset in dB for the selected sensor.
This setting is used to compensate for external couplers, attenuators or amplifiers in the RF signal path ahead of the power sensor.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
OffsetdB |
Get the number of min/max traces averaged together to form the peak hold measurement results on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
EnvelopeAverage | Out parameter value. |
EXPORT int PwrSnsr_GetPeakHoldTracking | ( | SessionID | Vi, |
const char * | Channel, | ||
int * | EnvelopeTracking | ||
) |
Returns whether peak hold decay automatically tracks trace averaging. If set to true, the peak hold decay and trace averaging values are the same. If set to false, peak hold decay is indepedent.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
EnvelopeTracking | Out boolean parameter value. |
Get the pulse amplitude percentage, which is used to define the beginning of a rising edge or end of a falling edge transition.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Proximal |
EXPORT int PwrSnsr_GetPulseUnits | ( | SessionID | Vi, |
const char * | Channel, | ||
PwrSnsrPulseUnitsEnum * | Units | ||
) |
Get the units for entering the pulse distal, mesial and proximal levels.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Units | PwrSnsrPulseUnitsEnum Pulse calculation units (watts or volts). |
EXPORT int PwrSnsr_GetSerialNumber | ( | SessionID | Vi, |
const char * | Channel, | ||
int | SerialNumberBufferSize, | ||
char | SerialNumber[] | ||
) |
Gets the serial number of the sensor.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
SerialNumberBufferSize | Size in bytes of Serial number. |
SerialNumber | Out parameter. ASCII string serial number. |
Get the point on a pulse, which is used to define the beginning of the pulse's active interval.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
StartGate |
Get the state of the peak sensor temperature compensation system.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
TempComp | Boolean. 1 for on; 0 for off. |
EXPORT int PwrSnsr_GetUnits | ( | SessionID | Vi, |
const char * | Channel, | ||
PwrSnsrUnitsEnum * | Units | ||
) |
Get units for the selected channel.
Voltage is calculated with reference to the sensor input impedance. Note that for ratiometric results, logarithmic units will always return dBr (dB relative) while linear units return percent.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Units |
Set the number of traces averaged together to form the measurement result on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Average |
EXPORT int PwrSnsr_SetBandwidth | ( | SessionID | Vi, |
const char * | Channel, | ||
PwrSnsrBandwidthEnum | Bandwidth | ||
) |
Set the sensor video bandwidth for the selected sensor.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Bandwidth |
Set the frequency calibration factor currently in use on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
CalFactor |
Set the pulse amplitude percentage, which is used to define the end of a rising edge or beginning of a falling edge transition.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Distal |
Get the measurement state of the selected channel. When the value is true, the channel performs measurements; when the value is false, the channel is disabled and no measurements are performed.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Enabled | Boolean. 1 for enable; 0 for disable. |
Set the point on a pulse, which is used to define the end of the pulse's active interval.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
EndGate |
EXPORT int PwrSnsr_SetFilterState | ( | SessionID | Vi, |
const char * | Channel, | ||
PwrSnsrFilterStateEnum | FilterState | ||
) |
Set the current setting of the integration filter on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
FilterState | State of the filter. |
Set the current length of the integration filter on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
FilterTime | Filter time in seconds. |
Set the RF frequency for the current sensor, and apply the appropriate frequency calibration factor from the sensor internal table.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Frequency | RF Frequency in Hz. |
Set the pulse amplitude percentage, which is used to define the midpoint of a rising edge or end of a falling edge transition.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Mesial |
Set a measurement offset in dB for the selected sensor.
This setting is used to compensate for external couplers, attenuators or amplifiers in the RF signal path ahead of the power sensor.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
OffsetdB |
Set the number of min/max traces averaged together to form the peak hold measurement results on the selected channel.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
PeakHoldDecay | Peak hold decay value. |
Sets whether peak hold decay automatically tracks trace averaging. If set to true, the peak hold decay and trace averaging values are the same. If set to false, peak hold decay is indepedent.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
EnvelopeTracking | Boolean value. True to set peak hold tracking on. |
Set the pulse amplitude percentage, which is used to define the beginning of a rising edge or end of a falling edge transition.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Proximal |
EXPORT int PwrSnsr_SetPulseUnits | ( | SessionID | Vi, |
const char * | Channel, | ||
PwrSnsrPulseUnitsEnum | PwrSnsrPulseUnitsEnum | ||
) |
Set the units for entering the pulse distal, mesial and proximal levels.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
PwrSnsrPulseUnitsEnum | Pulse calculation units (watts or volts). |
Set the point on a pulse, which is used to define the beginning of the pulse's active interval.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
StartGate |
Set the state of the peak sensor temperature compensation system.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
TempComp | Boolean. 1 for on; 0 for off. |
EXPORT int PwrSnsr_SetUnits | ( | SessionID | Vi, |
const char * | Channel, | ||
PwrSnsrUnitsEnum | Units | ||
) |
Set units for the selected channel.
Voltage is calculated with reference to the sensor input impedance. Note that for ratiometric results, logarithmic units will always return dBr (dB relative) while linear units return percent.
Vi | The SessionID handle that you obtain from the PwrSnsr_init function. The handle identifies a particular instrument session. |
Channel | Channel number. For single instruments, set this to "CH1". |
Units |