The File Utility allows you to perform a wide variety of data file tasks. You may list, print* (see bottom of page), create, and edit .IMP impedance files. While this utility is quite adequate for its intended task, it's not a full featured word processor; it doesn't have features like "search and replace," etc.



When you choose "(2) File Utility" from the Main Menu, either by pressing "2," or by using the "F2" function key, you'll enter the File Utility Menu. The screen display will look as follows:

File Utility Menu

(1) List File *

(2) Print Logfile *

(3) Create File

(4) Edit File

(5) Delete File

(6) Directory

(7) Main Menu

Choose (1 - 7) ?

  * Windows Print: Use (1) List File, then 'Mark' & 'Copy' into Clipboard.
  * Print Logfile (2) will direct output to Logfile.txt in the \mwdata1 sub-directory.

If you choose the option to 'Print Logfile,' the data will be directed to 'Logfile.txt' within the \mwdata1 sub-directory, and not to the screen. Right-click on 'Logfile.txt' to print it, and then DELETE the file; it will re-create when next needed.

You may make a selection from the File Utility Menu by entering a number from 1 to 7. You don't have to press <Enter>; these are hot keys and will immediately do what you want.


These three file operations are identical in that you are asked one simple question:   Filename ? _

Listing

If you want to list the TRL3 data (demo) file that exists in the \mwdata1 data sub-directory, simply choose "(1) List File," then type TRL3, and press <Enter>.

Printing.

To print from within a DOS Window, follow the directions given on-screen and at the bottom of this page.

Deleting.

Simply choose "(5) Delete File" and press <Enter>.


By choosing "(6) Directory," and pressing <Enter>, you will see a list of all .IMP data files within the \mwdata1 data sub-directory. Initially, the only files you will have will be ones that we've included for demo purposes.


Creating a .IMP Data File

When you choose "(3) Create File," and press <Enter>, you'll see the following:

Note 1: Max # lines = 10.             Note 2: Enter data in F <space> R <space> X format.             Example:                                   1300 34 -45                                          or                                   16500 120 6.5             Note 3: F and/or R CAN'T be <= zero!             Enter line #  1 : ?_

The maximum number of lines allowed in a .IMP file is 10, and there must be three entries on each line, each separated by one space.

The basic unit set for .IMP files is MHz and Ohms.

In the above, the 1st example entry represents a frequency of 1300 MHz and the impedance is Z = 34 - j45 ohms. On the 2nd line we show an example entry of 16500 MHz and Z = 120 + j6.5 ohms.

Let's create a small .IMP file and save it.

At the Enter line #  1 : ?_ prompt above, type 950 100 0 so the line looks like:

            Enter line #  1 : ?_ 950 100 0

Press <Enter> to complete the data line entry, and then type in a second line as shown below:

            Enter line #  2 : ?_ 1050 100 0

Press <Enter> to complete the data line entry.

            Enter line #  3 : ?_

O.K., now to save this two-line data file. At the end of "Enter line #3," above, just hit <Enter> again, a 2nd time, w/o typing any data. This extra<Enter> tells SmithMatch you are done. You will now be asked:

            Filename ? _

Let's name this file TWOFREQ. Please type the following at the prompt:

            Filename ? _  TWOFREQ

Press <Enter> to complete the data line entry.

You'll see a message on-screen telling you that the file is being saved and then you'll be returned to the File Utility Menu. As you see, its very simple to create a .IMP data file!

Please also note that frequency data MUST be entered in ascending order, i.e., from low to high, and that the maximum number of lines in a file is 10.

Editing Files

When you choose "(4) Edit File" from the File Utility Menu, either by pressing "4" or by using the "F4" function key, you'll see the following:

            Filename [<Enter>=Quit] ? _

Let's edit the short two-line .IMP data file we've just created. Type TWOFREQ to edit the file. Here is what you should see on the screen:

            Filename [<Enter>=Quit] ? _ TWOFREQ

Press <Enter> to complete the data line entry. Now you'll see:

Filename: TWOFREQ             # Lines    :  2             Line #   1    950 100 0             Line #   2    1050 100 0              Edit Command[<Enter>=Quit] ? _

You'll notice that the "Function Key Menu" at the bottom of the screen gives you six choices: F1 = List, F2 = Delete, F3 = Insert, F4 = Replace, F5 = Save, and F6 = Quit.

When editing any file, its always a good idea to choose "F1 = List" first. However, in this case, given that we only have two lines in the file, well' ll pass on this. So, choose "F3 = Insert," to insert an additional data line, by pressing the "F3" function key.

You'll be asked just where in the file you want to insert the new line:

             Max # lines = 10
             Insert line between (A,B): ? _

In the above, "A" and "B" represent the line #'s just above, and just below,  where you want to make the new entry.

If you want to insert a new line at the top of the file, enter "0,1" to tell SmithMatch that the line is to go just before the first line. By the same token, if you want to insert a new line at the bottom, and there are only two lines in the file, as is the case here, you would type "2,3" to add the new line in 3rd position just after line 2. Here, let's add a line in the middle. Type the following after the prompt:

             Insert line between (A,B): ? _ 1,2

Enter the following after the prompt:

             Enter new data line: ? _ 1000 100 0

Press <Enter> to complete the data line entry. You'll see a listing of the file showing that the line has been inserted in the middle.

Filename: TWOFREQ             # Lines    :  3             Line #   1    950 100 0             Line #   2    1000 100 0             Line #   3    1050 100 0              Edit Command[<Enter>=Quit] ? _

To delete the line, press the "F2 = Delete" function key at the Edit Command prompt, or type "2" and press <Enter>.
Note that, in keeping with the data file entry convention, the frequency of the new data line was entered in ascending order.

You'll be asked:

             Line # ? _

Type "2" and press <Enter>. The new line will be deleted and you'll again see:

Filename: TWOFREQ             # Lines    :  2             Line #   1    950 100 0             Line #   2    1050 100 0              Edit Command[<Enter>=Quit] ? _

We wanted to show you how to edit a file, but we'll also save it so we can use this two-line file in an example to follow.

Enter a "5" or Press "F5 = Save" to save this file. When asked for a name, enter TWOFREQ.

Now, choose "F6" to return to the File Utility Menu, and then "F6" again to reach the Main Menu.

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To print to either a parallel port, or a USB printer in Windows, from within a program running in a small DOS window, you must first copy the data in the Windows Clipboard. There are two ways to do this:

Method #1:
To print via Windows Paint, Wordpad, or Microsoft Word, from a small DOS window, use the two icons on the left, at the top. First, press 'Mark,' then left-click & drag the white cursor to highlight all the data you wish to transfer to the Clipboard. Now, with the data highlighted, press 'Copy' to paste in to the application of your choice, from which you may print.

Method #2:
To print via Windows Notepad, press the 4th icon from the left, at the top of the small DOS window, marked 'Full screen.' Now, press 'Alt + Print Scrn' to transfer the data to the clipboard. To return to the original small DOS window, press 'Alt + Enter.' Open Windows Notepad, press 'Edit' and then 'Paste.' Now you can print.