Agilent Technologies N4962A Guia do Utilizador descarregar pdf (Página 79)

Serial BERT 12.5 Gb/s User Guide

Example

OUTPUT 725; ":SENS:SWE:TIME 10"

OUTPUT 725; ":TRIG:INIT"

WAIT 2

OUTPUT 725; ":TRIG:SAMPLE”

OUTPUT 725; ":SENS:DATA? BER”

ENTER 725; value$

PRINT value$ ! BER value after 2 seconds

Command

:FETCh:BER? [BCOunt | ECOunt | ETIMe | BER | ALL]

Type

Querry

Description

Returns the selected parameter from the memory stored on the FPGA, or

returns all parameters as a vector if ALL or no parameter is specified. Does not

require the measurement to currently be running. This command can only be

used if the set-up measurement time from the command “:SENSe:SWEep:TIME

value” is completed. See examples 470-580.

BCOunt Total number of bits counted

ECOunt Total number of errors counted

ETIMe Elapsed time (seconds)

BER Calculated Bit Error Rate, or NAN if measurement not ready

The vector is as follows: BCOunt,ECOunt,ETIMe,BER

Parameters

[BCOunt | ECOunt | ETIMe | BER | ALL]

Result

Described above

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 87 88

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Agilent Technologies N4962A Guia do Utilizador Página 79