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2201R Mobile Tester SCPI Reference Guide

Chapter 10 Measurement commands

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237

:MEASure:GPRS:ARRay:RFRX:RBER:ALL

Syntax

:MEASure:GPRS:ARRay:RFRX:RBER:ALL <int1>

Parameters

int1 is an integer.

The minimum value for int1 is 0, the maximum value is 100. The default value for int1 is 0.

Description

Performs a sequential measurement of the residual bit error ratios (RBER) a specific number of times (set with the int1

parameter). To read out the entire measurement results array, use the :FETCh:GPRS:RFRX:RBER:ALL command.

The RF RX tests performed by this command are:

CIB, the residual bit error ratio of the class Ib bits,

CII, the residual bit error ratio of the class II bits, and

FER, the frame erasure ratio.

Notes: Please keep in mind that the start of a new RF RX test always terminates the preceding one instantly.

The number of samples to be used for testing can be set, using the :CONF:GPRS:BER:COUNt command.

More information regarding ARRay measurements can be found in section :MEASure:ARRay.

Query

The query form of this command performs the measurements the specified number of times (int1 parameter). After

all measurements have been completed and all measurement results obtained, the query delivers a string, containing

(3 * int1) measurement result values. The single measurement result values are separated by commas. All

measurement result values are floating point real numbers. The order of the measurement result values delivered

back is as follows:

1. CIB, representing the residual bit error ratio of the class Ib bits,

2. CII, representing the residual bit error ratio of the class II bits and

3. FER, representing the frame erasure ratio.

Example

:MEASure:GPRS:ARRay:RFRX:RBER:ALL 2

:FETCh:GPRS:RFRX:RBER:ALL?

In this case, the sequence of the residual bit error measurements is performed twice. All six measurement result

values are kept in an internal memory until they are read out with the FETCh command.

The string returned is:

"0.1,1.5,0.0,0.2,2.7,0.1".

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