Agilent Technologies 4294A, Operating Manual

Page: 294 / 469

286 Chapter 8
Analysis and Processing of Result
Save and Recall the Agilent 4294A Internal Data
NOTE You do not need to add any extension to the file name.
Step 7. When you finish entering a file name in the string entry line, press the
done
or
[
´
1]
key to
save the data. To cancel the saving operation, press the
cancel
key. In either case, you
return to the data save menu .
NOTE You can use your external keyboard connected to the rear panel in Steps 6 and 7. After
entering a file name, press the
[Enter]
key to save.
The extension ".S1P" is automatically added to the file name of the file you saved.
You cannot recall and use the data array saved in the touchstone format on the 4294A at a
later time.
Using a file saved in touchstone format
You can use data in a touchstone-format file saved as described in “Saving a data array in
touchstone format” on page 285 on your PC or workstation for equivalent circuit analysis
and so on using a circuit simulator such as Agilent Advanced Design System (ADS). For
more information on ADS, refer to the ADS's users manual.
File Structure
In the case of the HP 4294A, the data array is saved as S parameters of the 1-port model in
a touchstone-format file. Table 8-19 shows an example of data saved in the touchstone
format. You can read out the contents of a file with your text editor because they are text
data.
Key Function
Step keys ([
­
][
¯
]) Scrolls the character entry list displayed below
the string entry line.
Rotary knob (
m
m m
m
) Moves the cursor (
­
) below the displayed
character list to right and left.
SELECT LETTER
or
[G/n]
Enters the character specified with the cursor
(
­ ) below the character list at the position of
the cursor (_) in the string entry line.
Numeric keys (
[0]
through
[9]
,
[.]
, and
[-]
) Enters a numeric character at the position of
the cursor (_) in the string entry line.
SPACE
Enters a white space character at the position
of the cursor (_) in the string entry line.
BACK SPACE
or
[Back Space]
Returns the cursor (_) in the string entry line
one character left and deletes the character at
the position.
CLEAR NAME
Deletes the whole of the string entered in the
string entry line.