HP 8753E User Manual page 655

This section will dehne the following terms:
package
n
header
n
data array
n
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
The "data" part
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.
The ClTlfile Data Format and Keyword Reference
CITIFILE A.0190
NAME MEMORY
VAR F'REQ MAG 3
BEGIN
END