Defhition of CITIfl.le Terms

This section will dehne the following terms:

npackage

nheader

ndata array 8 keyword

A CZTIfile Package

A typical package is divided into two parts: The hrst part, the header, is made up of keywords and setup information. The second part, the data, usua.Ry consists of one or more arrays of data. Example 1 shows the basic structure of a CITIlile package:

Example 1, A ClTIiile package

The “header” part CITIFILEA.0190

NAME MEMORY

VAR F’REQ MAG 3

DATASRI

The “data” part

BEGIN

 

-3.54545E-2,-1.38601E-3

0.23491E-3,-1.39883E-3

2.00382E-3,-1.40022E-3

END

When stored in a disk fiIe there may be more than one CITIfile package. With the 8510 network analyzer, for example, storing a “memory all” wiU save aR eight of the memories held in the instrument. This results in a single fiie which contains eight CITIfIIe packages

The CITIfile Header

The header section contains information about the data that will follow. It may also include information about the setup of the instrument that measured the data. The CITIiile header shown in Example 1 has just the bare minimum of information necessary; no instrument setup information was included.

An Array of Data

An array is numeric data that is arranged with one data element per line. A CITIIile package may contain more than one array of data. Arrays of data start after the BEGIN keyword, and the END keyword wilI follow the last data element in an array.

A CITIfiIe package does not necessarily need to include data arrays; for instance, CITIfiIe could be used to store the current state of an instrument. In that case the keywords VAR, DATA, BEGIN, and END would not be required.

A-2 The ClTlfile Data Format and Keyword Reference

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HP 8753E manual This section will dehne the following terms Package Header, Header part CITIFILEA.0190, Data part