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TDS5000B Online Programmer Guide

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Reference Waveform Mnemonics

Commands can specify the reference waveform to use as a mnemonic

in the header.

Reference Waveform Mnemonics

Symbol Meaning

REF<x> A reference waveform specifier; <x> is 1 through 4

for four--channel instruments or 1 through 2 for two--

channel instruments.

Argument Types

Numeric

Many instrument commands require numeric arguments. The syntax

shows the format that the instrument returns in response to a query.

This is also the preferred format when sending the command to the in-

strument though any of the formats will be accepted. This documenta-

tion represents these arguments as follows:

Numeric Arguments

Symbol Meaning

<NR1> Signed integer value

<NR2> Floating point value without an exponent

<NR3> Floating point value with an exponent

Most numeric arguments will be automatically forced to a valid setting,

either by rounding or truncating, when an invalid number is input un-

less otherwise noted in the command description.

Quoted String

Some commands accept or return data in the form of a quoted string,

which is simply a group of ASCII characters enclosed by a single quote

(’) or double quote (”). The following is an example of a quoted string:

”This is a quoted string”. This documentation represents these argu-

mentsasfollows:

Quoted String Argument

Symbol Meaning

<QString> Quoted string of ASCII text

A quoted string can include any character defined in the 7--bit ASCII

character set. Follow these rules when you use quoted strings:

1. Use the same type of quote character to open and close the string.

For example: ”this is a valid string”.

Tektronix TDS5000B Series Online Programmer Guide

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