Transmit Power (TXP) Measurement Description

Last Updated: August 29, 2007

This topic describes the Transmit Power measurement. Transmit Power is a measurement in the Power and Modulation Quality measurement suite.

How is a Transmit Power Measurement Made?

The Transmit Power (TXP) measurement performs a power measurement on a wireless device, averaged over the useful part of the burst.

In addition, for EGPRS 8PSK bursts you can select to measure the estimated carrier power.
For multi-burst measurements, the average power value of the useful part of the burst is equivalent to the Long Term Average Power defined in the ETSI standards. You can choose either a more accurate but slower measurement with the multi-measurement useful part of the burst power result, or a less accurate but faster measurement with the estimated carrier power result.

For GPRS and EGPRS wireless devices in a multislot configuration that consists of adjacent timeslots, both bursts are measured. The test set does not re-range for the lower power burst so specifications are generally provided with respect to the higher power burst.

Transmit Power Measurement Parameters

Transmit Power is a measurement in the Power and Modulation Quality (PMOD) measurement suite. See Power and Modulation Quality Measurement Suite Measurement Parameters for details of the parameters that apply to all measurements in the suite.

Transmit Power Measurement Results

The results consist of the average, minimum, maximum and standard deviation of Transmit Power multi-measurements.

If the multi-measurement count is on, then the intermediate count is displayed in the lower-left area of the window.

SCPI Commands: FETCh:PMODulation:TXPower[:BURSt([1]|2)]?, FETCh:PMODulation:TXPower[:BURSt([1]|2)]:ALL?, FETCh:PMODulation:TXPower:MBURsts?, FETCh:PMODulation:TXPower:MBURsts:ALL?

Transmit Power Input Signal Requirements

Transmit Power is a measurement in the Power and Modulation Quality measurement suite. See Power and Modulation Quality Input Signal Requirements for details of the input signal requirements that apply to all measurements in the suite.  

 

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