*****************************************************************************
*  Help File for WeatherFAX Program Version 3.0
*  (C) OFS 1990,1991
*****************************************************************************
%10,4,5,16,60,HELP: Index
Press a function key for more information:

   F1  Help index  (This panel)
	 - How to get help
   F2  Version 3 - Change Summary
   F3  Getting started
	 - Installing the card
	 - Setup software
   F4  General information
	 - Introduction
	 - Command-line parameters
   F5  Displaying an image
   F6  Test/calibration of the WeatherFAX card
   F7  In case of difficulty...
   F8  Facsimile broadcasts

───────────────────────────────────────────────────────
How to Get Help

Help information is available anytime you see F1=Help
displayed on the screen. You can access Help by pressing
the F1 key. Press the Esc key to quit viewing Help.

Selecting

The menus allow you to set parameters and select various
actions. Use the up and down arrow keys to move the
selection bar to the item you want, then press the Enter
(─┘) key. To set parameters, either type in the
value or make your selection from the list of choices.

%11,4,5,17,65,HELP: Version 3 - Change Summary
This version (3.0) of FAX.EXE contains many improvements over
the original (V 2.0) and is a direct result of user feedback
and evolving market requirements. Version 2 will continue to
be available from the author for a nominal fee of $10. It will
also continue to be available at no charge from various computer
bulletin boards (BBS) as provided in the program license
agreement.

The new functions in Version 3 are:

Very High Resolution Graphics: 1024x768-256 colors, 800x600-
 256 colors, 640x480-256 colors and 1024x768-16 colors.
 Graphics cards that use Tseng 3000/4000 and ATI chipsets have
 been tested.  The Everex Viewpoint VRAM has also been tested at
 1280x1024 resolution.	Paradise and Video Seven chipset drivers
 are included but have not been tested.

More enhancement options:  All 20 NOAA/NESDIS image-
 enhancement curves are included for analyzing infrared images.
 Also included are Log-Black and Log-White curves for analyzing
 visible-light images. You can shift and scale the curves to
 better fit the curve to the image.

Palette Span. Interpolation allows you to set a few color
 palette levels and have the software fill in the in-between
 values.

Skip Lines.  This option is used to reduce the size of HF Fax
 and GOESTAP images. Skipped lines are not lost but averaged
 with the saved lines.

Automatic file save.	Allows images to be continually
 saved to disk using a time stamp as the file name.

Scheduled acquire.  Specify the starting time and duration to
 automatically capture images. This is useful to capture polar-
 orbiting satellites that do not transmit start and stop tones.
 You can specify the times from either a pull-down menu or a
 command-line option.

GOESTAP Mode	Allows you to capture GOESTAP images.

User-specified SPM  Specify any scan-per-minute value and
 capture images using nonstandard SPM rates.  You can now
 capture the Meteor-satellite images at 20 SPM and wire
 photos on C-band that use nonstandard rates.

Mirror Image	Reverse right-to-left wire photos that are sent
 as mirrored images.

Better Printer/File support  You can now print and save images
 when they are reduced using 50-percent Zoom. This allows you
 to print more image area and reduce the image file size.

Other miscellaneous changes:
-  The 256-color modes have finer scrolling steps that allow
   you to more-accurately align the image on the display.  This
   is useful for saving the images and using other software to
   "loop" the saved images.
-  RTTY support is removed.
-  The command line /Hxx parameter that specifies the 800x600-16
   color mode is no longer needed and should not be used if your
   card uses one of the supported chip sets.
-  24-hour time is used in lieu of 12-hour AM/PM time.
-  The screen is cleared as each new image is acquired.

%12,2,5,18,70,HELP: Getting Started
1. Install the WeatherFAX card.

    The card can be installed in any IBM PC, PS/2 Model 25/30 or
    compatible computer that uses the standard PC bus architecture.

    Refer to your computer's User's Guide for instructions for
    installing cards. You will need to remove the cover from the
    computer to insert the fax card into an unused card socket.

2. Setup Program

    A) Copy the Diskette.

       Copy the WeatherFAX diskette to another diskette or a hard
       disk and store the original diskette in a safe place. Refer
       to your DOS manual for instructions for copying diskettes.

       NOTE FOR USERS USING THE IBM CGA DISPLAY CARD.

       (Note does not apply if you are using a PS/2 computer or for
       most VGA or EGA Display cards). The CGA card ROM does not
       include the entire graphics character set. You must load the
       DOS graphics character set driver GRAPHICS.COM into memory.
       The driver is available on your DOS diskette.  Add an entry
       to your AUTOEXEC.BAT file to load this driver every time you
       start your PC. Example:	 C:\DOS\GRAPHICS.COM

    B) Test WeatherFAX card

       Test the fax card by using the Test option on the Main Menu.
       The various tests will indicate whether the card is operating
       within its correct operating region.

    C) Connect the WeatherFAX card to your receiver

       Use a two-wire cable to attach the fax card to your receiver.
       The cable should have a standard 3.5-mm phone plug on the end
       that plugs into the fax card. Plug the cable into either the
       receiver's earphone, speaker or fax-output jack.

    D) Specify Hardware

       Go to the Select Display and Printer menu to specify the
       Display Mode and Printer type. If you have a Super VGA card,
       also select the Configure SVGA card option.

    E) Capture Image to Computer Memory

       Set fax parameters and select the Acquire fax action. The
       program will automatically capture the next image into the
       computer storage. If the image is slanted, you need to adjust
       the Page Alignment. Once adjusted, the Page Alignment should
       never need to be changed again. Alignment is done while an
       image is being acquired. Refer to the help panel for
       Acquire Image to Buffer.

    F) Enhance and Save Image

       After an image is received you can enhance, print and save it
       to disk.

%13,4,5,16,60,HELP: General Information
Introduction:

This scan converter and software is used with your IBM or
compatible personal computer. With the proper receiving
equipment and antenna, your computer will be able to
capture, enhance, save and print--not just black and white-
but gray-scale weather-facsimile images received on the HF,
VHF and UHF bands. Users of this Automatic Picture
Transmission (APT) imagery include military and commercial
meteorologists, ships at sea, scientific observers,
educators, and amateurs.

This package was described in a two-part feature article
in QST magazine. See "A Weather-Facsimile Package for
the IBM PC," April and May 1990.

   ╔═══════╗
   ║Display║
   ║	   ║
   ╚═══════╝			    ┌──────────┐
  ┌─────────┐			    │ Weather  │
  │ Computer│	 phono cable	    │ Facsimile│
  │	    │-----------------------│ Receiver │
  └─────────┘			    └──────────┘

Install the scan converter into any IBM PC, PS/2 Model
25/30 or compatible computer that uses the standard PC bus
architecture.

System features

  o Direct APT weather-satellite imagery. Capture GOES
    APT/WEFAX, NOAA 9/10 APT IR/Vis, Soviet Meteor,
    METEOSAT, HF-FM NAFAX, GOESTAP and similar APT formats
    (e.g., wire photos).

  o Image capture can be fully or partially automatic,
    including APT start-tone detect, header skip, sync,
    image save-to-disk, APT stop-tone detect, and cycle
    repeat. Specify starting time for polar-orbiting
    satellites.

  o Expanded-memory support.  The size of the captured
    image is limited only by the amount of RAM in your
    computer.

  o All standard graphics cards are supported including
    CGA, EGA, MCGA, VGA and Super VGA resolution.
    1024x768-256 color resolution and lower are supported.

  o Histograms, enhancement, zoom, scroll, gray scale,
    palette interpolation, 256,000+ colors, real-time
    acquisition/display; all NOAA/NESDIS and logarithmic
    enhancement curves; four (4) user-setable
    imagery-enhancement curves.

  o Print images with 16-level gray scale on a wide variety
    of printers including 9- and 24-pin dot-matrix printers
    and laser printers.

  o Images saved to disk with standard TIFF and GIF formats
    allowing pictures to be used with other software.

  o Self-test mode verifies proper operation of the
    WeatherFAX card.

Command-line parameters
 ┌─────────────────────────────────────────────────────┐
 │ Syntax: FAX [options]   where options are:	       │
 │						       │
 │ /C	       Use conventional memory. 	       │
 │						       │
 │ /E	       Use Expanded (EMS) memory if installed  │
 │		 (Requires LIM 4.0 driver)	       │
 │						       │
 │ /FG	       Default to GIF file format	       │
 │ /FT	       Default to TIFF file format	       │
 │						       │
 │ /Hxx        BIOS display mode for 800x600-16 mode   │
 │	       (do not use if chip set is supported)   │
 │	       (See help screen for graphics mode)     │
 │						       │
 │ /Thh:mm,dd  Automatic acquire for polar satellites. │
 │	       Go into acquire mode, wait until        │
 │	       hh:mm (24-hour time), acquire image for │
 │	       dd minutes, save file in GIF format,    │
 │	       then exit to DOS 		       │
 │						       │
 │ /Whh:mm,dd  Automatic acquire for GOES satellites.  │
 │	       Go into acquire mode, wait until        │
 │	       hh:mm, then wait for Start tone,        │
 │	       acquire until either Stop tone or dd    │
 │	       minutes after hh:mm, save file, then    │
 │	       exit to DOS			       │
 │						       │
 │ The /T and /W parameters allow you to write DOS     │
 │ batch files to automatically capture many images    │
 │ at various times during the day.		       │
 │   hh:mm = starting time in 24 hour time	       │
 │   dd    = capture duration in minutes	       │
 └─────────────────────────────────────────────────────┘
 NOTE: This program automatically uses EMS memory if the
       available EMS memory size is greater than the
       conventional memory size.

 Examples:  C:>FAX /H52
	    Enables 800 x 600-pel resolution mode for Oak
	    SVGA graphics card. See help screen for
	    other cards.

	    FAX.EXE /T10:25,14
	    FAX.EXE /T17:45,10
	    Capture an image at 10:25am for 14 minutes
	    and another image at 5:45pm for 10 minutes.


%15,2,5,18,60,HELP: WeatherFAX Card Calibration
WeatherFAX card physical layout

 ╔════▌█══════▌█═══════════▌█═════════▌█═══════╗
 ║  ┌─██─┐  ┌─██─┐	 ┌─██─┐     ┌─██─┐     ║╔═══
 ║  │POT2│  │POT4│	 │POT3│     │POT1│     ║║
 ║  └────┘  └────┘	 └────┘     └────┘     ║║
 ║   Stop    Start	   AM	      FM       ║║
 ║ Detector  Detector	Demodulator  Demod. █████▌<─┐
 ║  450 Hz   300 Hz	 2400 Hz    1800 Hz █████▌ phono
 ║					       ║║  jack
 ║					       ║║
 ║					       ║║
 ║					       ║║
 ║					       ║║
 ║					       ║║
 ║					       ║║
 ╚═════════╗				   ╔═══╝║
	   ╚▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌╝	║

Calibration Procedure

Calibration is needed if any of the Self-Tests indicate
that the card is operating out of the indicated operating
range. The self tests indicate which parameter is out of
range and needs adjustment.

Instructions are provided below for making the adjustment.
The procedure is simple and can be performed without
special tools or knowledge. Because adjustments are made
while the computer is powered on, it is recommended that
the adjustment be done by a qualified service technician.

A non-metallic screwdriver should be used for the
adjustment. This will prevent damage to the computer if
the screwdriver should accidentally be dropped into the
computer.

1) Turn power to the computer off.
2) Remove the cover of the computer. Refer to your
   computer's User's Guide for instructions for removing
   the cover.
3) Locate the WeatherFAX card.
4) Turn computer power on and start the WeatherFAX program.
5) Select Test Adapter, and then Static Test.
   Adjust the potentiometers for the parameter out of range
   When you are finished all parameters should be in the
   'OK' region.
6) The final adjustment for the FM demodulator should be
   done while viewing the FM Graph Test. The line should be
   linear, sloping upward with time, and centered between
   0 and 256. If not centered adjust the FM potentiometer
   while viewing the Graph.  When you are finished with
   the adjustment using the FM Graph Test it is normal for
   the Static Test value to not be perfectly centered.

%16,2,5,17,65,HELP: In Case of Difficulty
SYMPTOM       SOLUTION
───────────── ────────────────────────────────────────

NO PICTURE    1) Run WeatherFAX card tests to assure that the
		 card is operating within the correct range.
	      2) Verify that Adapter Mode is set correctly for
		 the received signal (e.g., if the image is
		 WEFAX then the Adapter Mode must be set to AM.
	      3) For Marine fax mode verify that the receiver
		 signal level is within the range of the fax
		 card attenuation pads. If the signal level is
		 very weak then decrease the attenuation pads
		 using F4 on the Adapter Mode menu.
	      4) Is the fax receiver powered on and the cable
		  connected to the WeatherFAX card?

SLANTED IMAGE 1) If you cannot adjust the alignment, reduce
		 the number of pels-per-line and try again.
	      2) For 80386-type computers your EXPanded memory
		 manager may be too slow.  To check:
		 a) remove the EMS driver from the CONFIG.SYS
		    file and restart computer.
		 b) start WeatherFAX program. It will default
		    using conventional memory. If you can now
		    align images correctly then change to a
		    faster EMS driver (e.g., QEMM 386 from
		    Quarterdeck Office Systems).

DISTORTED     1) See sugestions for NO PICTURE.
PICTURE       2) Verify that Scans per minute is set correctly
		 for the received signal.
	      3) If the image is slanted then the Page Alignment
		 needs to be adjusted while an image is received.
	      4) For FM Marine fax, verify that the receiver is
		 tuned correctly. Marine fax images are usually
		 transmitted using Upper Side Band (USB). The
		 receiver must be tuned approximately 1700 Hz
		 lower than the center frequency.

		 Example: For a 8080 kHz HF fax signal, the
		 receiver should be tuned to 8078.3 kHz.
		 (8080 kHz - 1.7 kHz = 8078.3 kHz). Vary the
		 frequency slightly to get the best picture.
	      5) Check your AUTOEXEC.BAT file to remove any
		 terminate-stay-resident (TSR) programs.  Some
		 TSR programs interfere with the proper
		 operation of the fax software.

EXPANDED      Be sure that the Expanded memory device driver
MEMORY NOT    (LIM 4.0) is loaded into memory.
RECOGNIZED:
	      If you have an 80386-type computer, the
	      EXTended memory can emulate LIM 4.0 EXPanded
	      memory by using a device driver shipped with
	      DOS 4.0.

	      The EXTended memory on 80286-type computers cannot
	      emulate EXPanded memory.	EMS Simulators using
	      either the hard disk or EXTended memory are not
	      supported because of the "data aliasing" problem
	      inherent with simulators. You must use an actual
	      LIM 4.0 capable memory card.

800x600       1) Verify your graphics card supports this mode.
DISPLAY       2) Verify that you have a multifrequency monitor
MODE		 that supports 800x600 resolution.
DOESN'T       3) Verify you have set the correct BIOS display
WORK		 mode. See the Help Screen for Graphics Mode to
		 find the correct mode for your type of card.
	      4) Verify that the correct mode is listed as a
		 command-line parameter.  See the Help Screen
		 for Graphics Mode.
	      NOTE: Do not use the command-line parameter to
		 specify BIOS mode if your card uses one of
		 the supported chip sets.

%17,4,5,17,65,HELP: Facsimile Broadcasts
Radiofacsimile Sources

Marine Weather Radiofacsimile is received directly from
government radio transmissions. There are over 65 transmitter
sites worldwide that broadcast on over 200 different radio
frequencies. Information broadcast includes weather analysis
charts, satellite pictures and radar charts. Use any general-
purpose shortwave radio that receives Upper Sideband (e.g.,
8080 kHz USB). Use the WeatherFAX software to set FM mode and
120 Scans per Minute for capturing these images.

Weather satellites.

There are two types of operational satellites: geostationary and
polar-orbiting.

Geostationary satellites include U.S. GOES, European METEOSAT,
and Japanese GMS. These spacecraft transmit WEFAX format images
on S-Band frequencies (e.g., 1691 MHz). Set for AM mode and
240 Scans per Minute.

Polar-orbiting satellites include U.S. TIROS/NOAA and Soviet
Meteor. These spacecraft transmit on VHF frequencies (e.g.,
137.5 MHz). Set for AM mode and 120 Scans per Minute.

Wire Photos. These are transmitted on both HF Fax and C-Band
satellite.

GOESTAP. These are received either on C-Band satellite or
over telephone lines.

%18,4,5,3,30,HELP: F9 Key pressed
No help available

%19,4,5,3,30,HELP: F10 Key pressed
No help available


%50,4,5,17,66,HELP: Displaying an Image
When viewing the image, you can either:
  1) scroll using the cursor keys, or
  2) enhance the image using the pull-down menus.

┌────────────────────────────────────────────────────────┐
│ The active keys used for scrolling are:		 │
│							 │
│ cursor keys:	  Scrolls the image window up, down,	 │
│		  right and left.  A beep is sounded	 │
│		  when you reach the edge.		 │
│							 │
│ Shift Cursor:   Hold the Shift key and press a cursor  │
│		  key for fast scrolling.		 │
│							 │
│ Home		  Go to top of image.			 │
│							 │
│ End		  Go to bottom of image.		 │
│							 │
│ F1		  Help (this screen).			 │
│							 │
│ Esc		  Used for several purposes		 │
│		  - return from help screen		 │
│		  - abort when writing screen		 │
│		  - return to previous screen		 │
│							 │
│ Alt/F1..F4	 Hold the Alt key and press either	 │
│		 F1, F2, F3 or F4 to select one of the	 │
│		 user-defined color palette tables.	 │
│							 │
└────────────────────────────────────────────────────────┘

If you press the space bar while viewing the image, an action
line will appear.  Use the cursor keys to choose an option,
then press the Enter key.  The different image enhancement
selections are described below.  Press the Esc key to return
to scroll mode.

Palette  Change or view the user-defined color palette tables.
    The color tables allow you to emphasize selected areas of
    the image.

Histogram  Change the contrast and brightness of the image.
    This option is available only if the image was captured with
    pels per byte = 1.

Enhancement  Select one of the image enhancement curves.
    Both logarithmic and NOAA/NESDIS curves are available.

    Logarithmic curves include both LOG-White and LOG-Black and
    are used for enhancement of visible light imagery.	Both
    curves are defined in the Weather Satellite Handbook,
    4th Edition, published by the ARRL.

    The 20 NOAA/NESDIS curves are primarly used by professional
    meteorologists and are defined by the NOAA/NESDIS IR Imagery
    Enhancement Program as described in the 1983
    GOES User's Guide.  Includes BD, CC, CE, DD, EC, FC, HC,
    HD, IB, IC, JF, JG, LA, MB, NA, PC, SA, TA, ZA and ZB.

Zoom, Negative and Rotate

    Zoom.  Zoom the image by 50, 100, 200, and 400 percent.

    Choose 50 percent for shrinking the image to half size for
    displaying, printing and saving to disk. The 200- and
    400-percent Zooms are used for enlarging the image to better
    display small details of interest.

    Negative.  Select either the positive or negative view of
    the image.	The negative view is useful when displaying
    GOESTAP and IR images.  The image is displayed similar to
    that of a photographic negative.

    Rotate.  Select either Mirror or 180 Degree.  Often wire
    photos are sent as mirror images. 180 Degree turns the image
    upside down for viewing. This is useful for viewing images
    from descending-node (North-to-South track) polar-orbiting
    satellites whose images appear upside down.

Print  Before printing for the first time:
    - Select your printer type on the Setup Menu.
    - Set the desired print gray scaling on the Print Menu.

    With this option, the displayed portion of the image is
    printed.  If the screen is Zoomed 50 percent, the printing
    is scaled accordingly. To print the entire image, align the
    top and left corner of the image to be printed, then exit
    back to the Print Menu.  You can now set the desired print
    gray scaling.  The image will print starting from the top
    left corner.

%51,4,5,17,60,HELP: Palette
You can highlight selected areas of the image by adding
color. Up to four separate user-defined palette tables are
available. For each table, you can adjust the RGB
(Red-Green-Blue) component of each selected color.
The palette tables do not change the image data,
they only define the colors in which the image is displayed.

    ┌───┬────────────────┐
    │	├		 ┤ <───┬─ Histogram area
    │	├		 ┤     │
    │	├		 ┤     │
    │	├		 ┤     │
    │	├		 ┤ <───┘
    │	│   ░░░▒▒▒▓▓▓████│ <───   Color Scale
    │  32    		 │ <───   1) Color number
    │ Red    21 ┤  │	 │ <───   2) Red value
    │ Green  36 ┤    │	 │ <───   3) Green value
    │ Blue   60 ┤	││ <───   4) Blue value
    │			 │
    │ Palette [2]	 │ <───   5) Table number
    ├────────────────────┤
    │ Esc F9=Span F10=Clr│
    └────────────────────┘

The histogram displays a bar chart of the distribution
of intensity levels in the displayed part of the image.
It is used as a visual aid to to help set the palette
table.	The horizontal axis is the intensity level from
0 to 255.

The active keys are:

  Up/Down cursor    :  selects 1 of the 5 functions
  Right/Left cursor :  change value
  Esc		    :  return to previous menu
  F1		    :  Help (this screen)
  F9		    :  interpolate colors between the last
		       two colors that have been modified.
  F10		    :  reset colors to gray levels.

Functions:
  1) Color number  - Indicates the image intensity level.
		     All areas in the image with the same
		     intensity level will momentary flash
		     to help locate areas of interest.
		     Use cursor Right/Left to change.
  2) Red value	   - Indicates the color's Red component.
		     Use cursor Right/Left keys to change.
  3) Green value   - Indicates the Green component
  4) Blue value    - Indicates the Blue component.
  5) Table number  - Use Right/Left keys to change palette
		     tables

%52,4,5,17,60,HELP: Histogram
The histogram displays a bar chart of the distribution
of intensity levels in the displayed part of the image.
It is used as a visual aid to to help adjust the brightness
and contrast.  The horizontal axis displays the brightness
level from 0 to 255. The vertical axis displays the number
of pixels for each brightness level.
For Brightness, the right cursor key makes the image
darker. For Contrast, the right cursor key increases
the contrast.  For the 16-color modes (e.g., VGA) the
display is redrawn with the new Brightness and Contrast
values when you exit the menu using the Esc key.

The adjustment scale "[   │   ]" indicates both the
contrast range and brightness level. The center mark
"│" indicates the brightness level.  Make the
image darker by moving the "│" to the right using the
right arrow key. The "[ ]" marks indicate the contrast
range. Increase the contrast by moving the "[ ]"
marks closer together.

%53,4,5,17,60,HELP: Enhance
Select one of the image enhancement curves.
Both logarithmic and NOAA/NESDIS curves are available.

Logarithmic curves include both LOG-White and LOG-Black and
are used for enhancement of visible light imagery.  Both
curves are defined in the Weather Satellite Handbook,
4th Edition, published by the ARRL.

The 20 NOAA/NESDIS curves are primarly used by professional
meteorologists and are defined by the NOAA/NESDIS IR Imagery
Enhancement Program as described in the 1983
GOES User's Guide.  Includes BD, CC, CE, DD, EC, FC, HC,
HD, IB, IC, JF, JG, LA, MB, NA, PC, SA, TA, ZA and ZB.

%54,4,5,17,60,HELP: Misc
Zoom.  Select Zooms of 50, 100, 200, and 400 percent.
Choose 50 percent for shrinking the image to half
size for displaying, printing and saving to disk. The
200- and 400-percent Zooms are used for enlarging the
image to better display small details of interest.

Negative.  Select either the positive or negative
view of the image.  The negative view is useful when
displaying GOESTAP and IR images.  The image is
displayed similar to that of a photographic negative.

Rotate.  Select either Mirror or 180 Degree. Often
wire photos are sent as mirror images. 180 Degree turns
the image upside down for viewing. This is useful for
viewing images from descending-node (North-to-South
track) polar-orbiting satellites whose images appear
upside down.

%100,4,5,12,55,HELP: Main Menu
This menu provides access to all WeatherFAX functions:

FAX  . . . . . Capture, store, view, and print an
		 image.

Test Adapter . Test WeatherFAX card for correct
		 operation.

Exit to DOS  . Terminate program and exit to DOS.

%110,4,5,17,70,HELP: Fax Menu
The main screen displays information about the image stored
in computer memory.

Lines  . . . . . . .	Number of image lines
Pels per line  . . .	Image samples taken per image line
Pels per byte  . . .	Number of samples stored per byte
Bytes  . . . . . . .	Amount of storage used to store the image.
Buffer used  . . . .	The arrow points to the type of buffer used:
			Conventional Memory; or Expanded Memory.
			WeatherFAX will use whichever memory is
			larger.

You can select various fax functions:

ACQUIRE     Allows you to store a received weather-facsimile image
	      in computer memory. GOES (WEFAX), polar-orbiting NOAA,
	      and Marine fax images can be acquired. Various receive
	      options are available. You must have a fax card
	      installed in your computer and your receiver must be
	      attached to the card with a cable.

FILE	      You can either:
	      - Retrieve an image from disk.
	      - Save an image to disk.
	      - Erase a file from the disk.

PRINT       You can print the image with selectable gray scaling.
	      You can print the entire image or just the displayed
	      portion.	Any of several half-toning (dithering) methods
	      can be selected.

VIEW	      You can view the image with selectable display
	      resolutions. You can scroll, adjust the contrast,
	      change the colors, and zoom. For more information, go
	      to the HELP INDEX and select Displaying an Image.

SETUP       You can select the graphics display mode and printer
	      setup information.

	      You can easily change from one display mode to another
	      to view the image with different color palettes and
	      resolutions.

	      Select your printer type. You can send the image to
	      a printer connected to your computer's printer port,
	      or "print" the image to a DOS device name. The device
	      name can be a file name or the name of a printer
	      attached to a Local Area Network (LAN).

%120,4,5,17,70,HELP: File
You can either:

Retrieve    an image from disk into memory.  You can retrieve and
	      display image files that are created by other software
	      packages if they are stored with either the GIF or
	      TIFF file formats.

	      NOTE: If you should get the error message "Drive not
	      ready" when retrieving very large files (1 MB or
	      larger), you may not have enough DOS disk buffers
	      assigned. Try increasing the number of buffers by
	      adding the following line to your DOS CONFIG.SYS file.
	     BUFFERS = 24 

Save	      image from memory to disk. You can save either:
	      1) Only that PART of the image that is displayed.
	      2) The ENTIRE image starting from the top left corner
		 displayed on the screen. This feature allows you to
		 "crop" the top and align the left edge of the image.
		 Before you save to disk, be sure to view the entire
		 image (use the cursor keys). The image will be saved
		 starting at the top left corner of the screen.

	      Files are saved using the standard Tag Image File
	      Format (TIFF) or Graphics Interchange Format (GIF)
	      which allow the files to be used by many other software
	      programs.

Erase       a file from the disk.

%130,4,5, 5,22,HELP: Exit
You can either:
Resume and continue
using the program or
Exit to DOS

%141,4,5,17,60,HELP: Graphics Mode
Select one of the display modes for viewing the image.
Only the modes available for your computer can be selected.
You can quickly switch between modes to display the image
with different colors and resolutions. The different
display modes and resolutions are listed below:

    ┌────────┬────────────┬──────┐
    │ Mode   │ Resolution │Colors│
    ├────────┼────────────┼──────┤
    │ CGA    │  320 x 200 │	 4 │
    │ EGA    │  640 x 350 │	16 │
    │ MCGA   │  320 x 200 │  256 │
    │ MCGA_H │  640 x 480 │	 2 │
    │ VGA    │  640 x 480 │	16 │
    ├────────┼────────────┼──────┤
    │ SVGA   │  640 x 480 │  256 │
    │ SVGA   │  800 x 600 │	16 │
    │ SVGA   │  800 x 600 │  256 │
    │ SVGA   │ 1024 x 768 │	16 │
    │ SVGA   │ 1024 x 768 │  256 │
    │ SVGA   │ 1280 x1024 │	16 │
    └────────┴────────────┴──────┘

NOTES:
  1) For 256-color mode, colors are selectable from a
     palette of over 256,000 colors that include 64 gray
     scales.
  2) If you have an SVGA card, go to the Configure Super
     VGA Card screen to identify the card type.

%142,4,5,17,60,HELP: Printer Type
You can select a compatible printer type from the list of
supported printers. Check your printer documentation to
determine which of the supported types that it emulates.

Printers supported and Print Resolution (dots per inch)
    ┌──────────────────────────────────────────────┐
    │ Epson compatible 9-pin printers	 (120 dpi) │
    │	- Epson FX, MX, RX, LX series		   │
    │	- IBM Graphics or Proprinter		   │
    │	- Okidata 192I+, 193I+, 292, 293	   │
    │	- Okidata in IBM mode			   │
    │	- Panasonic KX-P1080i, P1091i, P1093	   │
    │	- Cannon PW-1156A			   │
    │	- Citizen MPS-25			   │
    │	- Star Micronics: Gemini 10X		   │
    │						   │
    │ Okidata compatible 9-pin printers  (120 dpi) │
    │	- Okidata 192, 193			   │
    │						   │
    │ Apple ImageWriter II		 (160 dpi) │
    │						   │
    │ Epson  24-pin compatible printers  (180 dpi) │
    │	- Epson LQ series			   │
    │	- IBM Proprinter X24 and XL24		   │
    │						   │
    │ Toshiba 24-pin compatible printers (180 dpi) │
    │	- Toshiba P321, P341, P351		   │
    │						   │
    │ IBM Pageprinter 3812		 (240 dpi) │
    │						   │
    │ PCL command compatible		 (300 dpi) │
    │	- HP LaserJet series II 		   │
    │	- HP DeskJet				   │
    │	- Apple LaserWriter II			   │
    │	- IBM LaserPrinter			   │
    └──────────────────────────────────────────────┘

%143,4,5,17,60,HELP: Printer Destination
You can select the printer destination. The print
destination can be:

LPT1 : first locally attached parallel printer

LPT2 : second locally attached parallel printer

DOS output device :

 - an external printer shared on a local area network.
 - a DOS disk file that creates a print-ready file.

The first two choices (LPT1, LPT2) use the computer BIOS
functions for sending data to a printer attached to a
parallel port. This is the fastest way to print an image.

  NOTE:
  If you are using a printer attached to the Serial Port
  (COM1), you need to setup the Serial Port using the DOS
  MODE command before starting the WeatherFAX program.
  This command could be placed in your AUTOEXEC.BAT file.

  1) Set the data rate and other parameters with the DOS
     MODE command. (e.g., MODE COM1:96,N,8,1,P)

  2) Redirect LPT1 to COM1 with the DOS MODE command
     (e.g., MODE LPT1=COM1)

  3) Start WeatherFAX program and set the Printer
     Destination in the SETUP MENU to LPT1

%144,4,5,4,40,HELP: Wide Carriage
Enter YES if:
1) your printer has a wide carriage AND
2) you want the images printed on
   wide paper.

%145,4,5,17,60,HELP: Configure SVGA card
If you have a Super VGA card, consult your User's
Manual to identify the chip set type and the enhanced
graphics modes.  If the chip set is listed in the table
below, you can select all of the resolutions listed.
To identify the chip set type, you can either:
  1) refer to the User's Manual
  2) visually inspect the SVGA card
  3) try to match the video BIOS modes in the manual with
     those in the table below.

  TABLE OF VIDEO BIOS MODES FOR SUPPORTED RESOLUTIONS
┌─────────────────┬─────────────────────────────────────┐
│		  │	    VIDEO BIOS MODES		│
│		  │640x480│ 800x600 │ 1024x768│1280x1024│
│ CHIP SET	  │  256  │ 16 │ 256│ 16 │ 256│  16	│
├─────────────────┼───────┼────┼────┼────┼────┼─────────┤
│ Tseng ET3000	  │  2E   │ 29 │ 30 │ 37 │ NA │  NA	│
│ Tseng ET4000	  │  2E   │ 29 │ 30 │ 37 │ 38 │  NA	│
│ ATI		  │  62   │ 54 │ 63 │ NA │ NA │  NA	│
│ Paradise	  │  5F   │ 58 │ NA │ 5D │ NA │  NA	│
│ Video Seven	  │  67   │ 62 │ 69 │ 65 │ NA │  NA	│
│ Everex Viewpoint│  30   │ 02 │ 31 │ 20 │ 32 │  21	│
│		  │	  │    │    │	 │    │ 	│
└─────────────────┴───────┴────┴────┴────┴────┴─────────┘
  NOTES:
  1) 'NA' indicates that the mode is not supported.
  2) A multifrequency (multisync) display is required for
     resolutions of 800x600 and greater.
  3) 512 KB of video RAM is required on the graphics card
     for the 800x600-256 and 1024x768-16 color modes.
     1 MB is required for the 1024x768-256 and 1280x1024-16
     color modes.
  4) Everex Viewpoint, Genoa Super VGA, Orchid ProDesigner,
     Boca Research SVGA use the Tseng chip set.
     ATI VGAWonder+ uses the ATI chip set.
     AST VGA Plus, Compaq VGA, Paradise VGA Plus/Prof
     and Dell VGA use the Paradise chip set.
     Video7 VRAM/Fastwrite use the Video Seven chip set.
  5) The ATI VGAWonder is not supported at 1024x768-16
     colors because the card does not support the BIOS
     commands used by the WeatherFAX program for the pull-
     down menus.

NOTE: A small number of SVGA cards do not support the BIOS
functions that WeatherFAX uses for the pull-down menus when
using non-IBM compatible display resolutions.  Most cards
work correctly but some may not display the menus correctly
when using the 256-color modes. If your card does not
display the pull-menus in 256-color mode then you should
change to a 16-color or the IBM compatible 320x200-256
color mode for setting the color palettes.  The pallettes
will then be used when you change back to the 256-color
SVGA mode.

If your SVGA chip set is not listed above, the 800x600-16
enhanced graphics mode can be still be used by specifing
the BIOS mode as a command-line parameter.

     TABLE LISTING 800x600 16-COLOR BIOS MODES
     FOR VARIOUS GRAPHICS CARDS
    ┌────────────────────────┬──────────┬──────┐
    │ CARD		     │ CHIP SET │ MODE │
    ├────────────────────────┼──────────┼──────┤
    │ Chips & Technology     │ C&T	│ /H70 │
    │ Everex		     │ Everex	│ /H02 │
    │ Great Wall of China    │ Trident	│ /H5B │
    │ Oak Technology	     │ Oak Tech │ /H52 │
    │ Tecmar VGA-AD	     │		│ /H18 │
    └────────────────────────┴──────────┴──────┘
    For example: the Oak card uses mode 52 to display
    800 by 600 with 16 colors.	Start the program with:
    C:>FAX.EXE /H52

    If your card isn't listed above, you should
    determine the correct 800x600 16-color mode from the
    User's Manual that came with your card.

%146,4,5,11,60,HELP: Test Printer
This test prints a sample of the various shading
patterns to the attached printer. This allows you to
check the operation of the printer.

NOTE: Some printers can be attached to either a Parallel
or a Serial computer port.  These printers usually are
configured for either 7-bit or 8-bit graphics mode.
Be sure that the printer is configured for 8-bit mode.
Otherwise, the printed sample will have a blank row (space)
every 8 lines.

%201,4,5,11,55,HELP: Filespec Menu
To view a list of files on a disk or in a directory,
enter just a drive or directory name and press Enter.
To list selected files, use * or ?.  Example: a:*.TIF

Type a filename with an optional extension of a period
and up to three characters.  You can include a drive
and a path of directory names up to 45 characters.
You can type over the default drive and directory
names.	Press Home, type the drive, press Cursor Right
to move over the colon, and type the directory name.

%202,4,5,7,42,HELP: Get File
This file has an unknown file format.
It was not saved using this Fax program.

You must enter the Pels Per Line and
Pels Per Byte parameters.  If these are
not set correctly, the image will
not display correctly.

%206,4,5,6,50,HELP: Save Range
You can save either the entire image or just the
displayed portion.

If you save the entire image, the image is
saved starting at the top displayed row and left-
hand column. The remainder of the image is saved.

If you save just the displayed portion,
consider changing display modes before saving.
Changing to a lower-resolution display mode
reduces the saved area and file size.

%207,4,5,17,60,HELP: Save Format
You can save the image in either the TIFF or the GIF file
format. These standard image file formats allow images to
be imported as graphics files into various painting and
desktop publishing (DTP) applications that support these
formats.

TIFF (Tag Image File Format) has fast file operations and
stores an image as an uncompressed raster-scan gray-scale
image.	Each byte stores either 4 or 8 bits of gray scale
information for each pixel digitized.

GIF (Graphics Interchange Format) is the standard format
used for storing images by CompuServe and other computer
bulletin boards systems (BBS).	GIF is much slower than
TIFF, but uses an efficient compression algorithm that
minimizes file size and saves disk space.

%208,4,5,2,35,HELP: Save Image
The image will be saved to disk.

%211,4,5,17,60,HELP: Print Mode
┌─────────────────────────────────────────────────────┐
│ Dot	 Number 				      │
│ matrix shades    Description			      │
│ ────── ───── ───────────────────────────────────────│
│ 1x1	  1    Black and white			      │
│ 2x2	  4    4 halftones			      │
│ 4x4	 16    Bayer dither   - high resolution       │
│ 4x4	 16    Fatting dither - high contrast	      │
│ 4x4	 16    Horizontal Line dither.		      │
│	       Emphasizes vertical lines	      │
│ 4x4	 16    Vertical line dither.		      │
│	       Emphasizes horizontal lines.	      │
└─────────────────────────────────────────────────────┘

Dot matrix - Number of horizontal and vertical dots
printed for each pixel.

Number shades - Number of gray scales.

%212,4,5,17,60,HELP: Print Range
You will need to view the image to align the top line and
left column to be printed. You can print either the entire
image or just the displayed portion.

NOTE:
Printing does NOT scale the image to fit the page.
The image will always be printed starting at the
TOP AND LEFT SIDE DISPLAYED ON THE SCREEN.  This
allows you to trim the top and align the left-hand
side before printing. Printing will continue across
the line until the page width is reached.

If you print only the displayed portion, the print size
depends on the selected graphics mode. VGA and EGA modes
print more area then CGA and MCGA modes. You may want to
change the graphics mode before printing to adjust the size
of the printed image.

%213,4,5,4,40,HELP: Print Title
The title you give is printed at the
top of each picture. This option is
useful for labeling the pages.

%214,4,5,4,40,HELP: Time and Date
If you select Yes, the current time
and date is printed at the top of the
page.

%215,4,5,3,60,HELP: Print Image
Prints the image stored in the RAM using the selected print
options. The image is printed starting from the top and
left side displayed.  You may want to view the image to
verify that the desired area is aligned.

Before printing for the first time:
- Select your printer type on the Setup Menu.
- Set the desired print gray scaling on the Print Menu.

You can then print the image one of two ways.

1) You can choose the Print option while viewing the image.
   This will print only that portion of the image displayed
   on the screen. If the screen is zoomed, the printing
   is scaled accordingly.

2) View the image to align the top and left corner of the
   image to be printed, then exit back to the Print Menu.
   You can now set the desired print gray scaling and print
   either the screen or the entire image starting from the
   top-left corner.

%301,4,5,17,60,HELP: Adapter Mode
The WeatherFAX card can capture four types of weather
facsimile images:

- HF Fax.  These image are usually Marine weather facsimile
  and are received on HF radio on shortwave radio
  frequencies (e.g., 8080 kHz). Set the card to FM mode.
  The fax card captures an FM signal with a wide amplitude
  range. However, if the signal volume from your receiver is
  very strong or very weak, you can compensate by
  adjusting attenuation pads on the WeatherFAX card.
  F4 allows you to change the pads.

- WEFAX.  This is the format for geostationary weather
  satellites (GOES). The receiver is usually tuned to
  S-Band 1691 MHz (1694 MHz). Set the card to AM mode
  and Automatic Gain Lock (AGL) on the card sets the
  correct level for any type of image.

- GOESTAP.  This is similar to WEFAX except the signal is
  sent as a negative image and is received via C-Band
  satellite or telephone lines.  Set the card to AM mode
  and AGL on the card automatically sets the correct level.

- Polar-orbiting satellites.  These are images transmitted from
  polar-orbiting satellites (e.g., NOAA) at frequencies
  between 136 and 138 MHz. The fax card is set to AM mode
  and a fixed gain level is used. F5 allows you to set
  the fixed gain level. The gain should allow the AM signal
  to vary over a wide dynamic range without clipping.

%302,4,5,15,50,HELP: Automatic File Save
If set to YES, the image is automatically
saved to the disk when either: a Stop tone is
detected; all of the available RAM is filled up;
you terminate the capture by pressing the
Enter key. The file name will be saved as a GIF
format file on the default file path.

The file name has the format:  MMDDHHmm.GIF
  where:
    MM = Month from 1 to 12,
    DD = Day of the month
    HH = hour that the image was saved (24-hour
	 format)
    mm = the minute that the image was saved

Example:  12071915.GIF
The image was saved on December 7th at 7:15 PM.

%303,4,5,17,60,HELP: Acquire Image to Buffer
Your fax receiver should be attached to the WeatherFAX
card.

The bottom line of the display is the action line. It
displays the current receive status and allows you to
select various actions while receiving the image. Different
actions are displayed using the   cursor keys.  Press
Esc to exit back to the Fax Menu.

┌───────────────────────────────────────────────────────┐
│ ACTION LINE SELECTIONS				│
│							│
│ Manual start	    Press ─┘ for manual start	  │
│ Scroll image window     - - keys scroll left/right  │
│ Darker -		    - - to adjust brightness	  │
│ Adj contrast	    - - to adjust contrast	  │
│ Printer: on/off	    ─┘   to turn printer on/off  │
│ Disk   : on/off	    ─┘   to save to disk on/off  │
│ Page alignment	    - - adjust timing.	  │
└───────────────────────────────────────────────────────┘

Disk allows you to enable and disable the Automatic File
Option.

Page Alignment allows you to adjust the fax card timing
if the image is slanted. Once adjusted, the timing will not
need to be changed again. Use the cursor keys to increase and
decrease the timing value. Increase if the image slants to
the left. Decrease if the image slants to the right.

┌────────────────────────────────────────────┐
│ RECEIVE STATUS			     │
│					     │
│  Wait       : Waiting for start signal     │
│  Start      : Start signal detected        │
│  Sampling   : Putting image into buffer    │
│  End of mem : Image size exceeds buffer    │
│  Stop       : Stop signal detected	       │
└────────────────────────────────────────────┘

%304,4,5,10,55,HELP: Scheduled Acquire Image
This option is useful for automatically capturing
images while the computer is unattended.  If
Auto File Save is set to Yes, each image will
be automatically saved to disk using the timestamp as
the filename.  Set starting times in 24-hour format
and capture durations in minutes.  When you are
finished setting the times, move the cursor down to
Enter to Activate and press ─┘ to begin.

This option works differently depending upon the
facsimile type: for Polar satellites the image
capture will begin immediately upon starting.
For other modes the computer will wait for a
Start Tone signal when the starting time expires.

Image capture will stop when either:
  1) the time duration expires
  2) all of the memory in the computer is filled up
  3) a Stop Tone is detected (all modes except Polar)

%401,4,5,10,50,HELP: Scans Per Minute
Selects the number of image lines sampled every
minute.  Use the same value as that of the signal
that you receive. You can also specify your own
SPM value to capture images using nonstandard
SPM rates. This allows you to capture the Meteor
satellites with 20 SPM and wire-photos on C-band
that use nonstandard rates.

Typical SPM rates:
    120  Polar satellites, HF Fax, GOESTAP
    240  WEFAX

%402,4,5,17,60,HELP: Pels Per Scan Line
Selects the number of samples (pixels) stored for each
image line.  You would typically set this value to be at
least as large as the resolution of your graphics display
mode (e.g., 640 for EGA or VGA).

   TABLE OF PELS-PER-LINE FOR VARIOUS IMAGE TYPES
    ┌───────────┬───────────────┬─────┬──────┐
    │Image Type │ PELS PER LINE │ SPM │ IOC  │
    │		│  SKIP LINES	│     │      │
    │		│  NO	│ YES	│     │      │
    ├───────────┼───────┼───────┼─────┼──────┤
    │ HF Fax	│ 1800	│  900	│ 120 │ 576  │
    │ WEFAX	│  840	│  420	│ 240 │ 268  │
    │ GOESTAP	│ 2048	│ 1024	│ 120 │      │
    │ Polar	│ 1800	│  900	│ 120 │ 288  │
    │ Wire Photo│ 2048	│ 1024	│  *  │      │
    └───────────┴───────────────┴─────┴──────┘

Pels per Line sets the resolution of the image and affects
the amount of computer storage needed to hold the image.
The equation for image size (bytes) is:

IMAGE_SIZE = PELS_PER_LINE * NUM_LINES / PELS_PER_BYTE

Where:
    PELS_PER_LINE = pixels stored for each image line
    NUM_LINES	  = lines in the image
    PELS_PER_BYTE = pels stored per byte, either 1 or 2

NOTE: The greater the number of Pels Per Line, the greater
    the image resolution.  However, the maximum value may be
    limited by the speed of your computer.  For earlier
    PCs having a 4.77-MHz clock, use a maximum value
    of 700 when using 240 Scans Per Minute.

%403,4,5,15,60,HELP: Pels Per Byte
The fax program uses all of the available memory in your
computer to capture images.

If you have limited computer memory (less then 512 KB), consider
selecting 2 pels per byte.  This value saves memory by
packing two pixels into each memory storage byte. This
allows you to capture images twice as large. The image is
stored with 16 shades and once captured you cannot enhance
the brightness and contrast.

If you have more then 512 KB of memory or expanded memory
(LIM 4.0), you should select 1 pel per byte. The
image is stored with up to 256 shades and you can enhance
the brightness and contrast of the image at any time.

%404,4,5,6,60,HELP: Skip Lines
If you have limited memory select SKIP LINES = YES
If set to YES, every other line is skipped and
averaged with the saved line.  This parameter is also
useful for receiving HF Marine fax with an IOC of 576.
This allows you to get a square image with half the usual
number of Pels_Per_Line.

%310,4,5, 9,50,HELP: Adjust Signal Level
Allows you to set the gain of the fax card so
that the signal level for polar satellites is
just right. Use the cursor keys to increase or
decrease the signal level while a satellite
signal is active so that the level covers a wide
dynamic range without exceeding the MAX value.
You can also ajust the signal level by changing
the audio gain control on your receiver.

%311,4,5,17,50,HELP: FM Attenuation
The phase lock loop on the card works over a wide
variation in signal level. You will normally keep
the attenuation set for Normal.  This setting
allows operation for input-signal amplitudes that
vary between -20 dBm to +10 dBm. However, you can
adjust the attenuation pads on the fax card to
compensate for very weak or very strong FM fax
signals.

┌────────────────────┬─────────────────────────────┐
│ Pad setting	     │ Signal strength		   │
├────────────────────┼─────────────────────────────┤
│ Increase (+10 dBm) │ Strong (-10 dBm to +20 dBm) │
│ Normal   (  0 dBm) │ Normal (-20 dBm to +10 dBm) │
│ Decrease (-10 dBm) │ Weak	(-30 dBm to   0 dBm) │
└────────────────────┴─────────────────────────────┘
Notes:
1) The input impedance of the fax card is 10K ohms.
2) If the signal is very weak, set the pad to
  Decrease, this decreases the attenuation
   by -10 dBm.

%230,4,5,17,50,HELP: Device Name
DOS Output Devices use the computer DOS functions
for sending data to a DOS Device Name. Enter the
name of the DOS device. Possible device names
are:

  LPT1, LPT2, PRN - DOS name for locally
		    attached printers

  COM1, COM2	  - DOS name for serial
		    communications port. Use the
		    DOS MODE command to set the
		    data rate.

  network printer name - use name of Local Area
		    Network attached printer

  DOS disk file name  - (e.g., print.dat) This
		    creates a print-ready
		    disk file of the image.

%510,4,5,17,70,HELP: Adapter Test
You can check the operation of the WeatherFAX card at any time to
verify that it is working correctly. Various tests are used to check
the operation of all of the major functions of the WeatherFAX card.

Static Test	The nominal frequencies of the phase lock loops and
	      filters are displayed. All of the marks should be in
	      the OK region. This test can be used for checking for
	      normal operation and for calibration.

	      If any of the values are out of range, the fax
	      card may be adjusted with only a screwdriver. No
	      specialized test equipment or knowledge is required.
	      For more information look in the HELP INDEX for:
	      Test/calibration of the WeatherFAX card

Dynamic Test	Checks the operation of the major functions of the
	      fax card.  A test signal is applied and the outputs are
	      checked to verify that all of the circuits are working.

	      Start/Stop detectors
	      The detectors allow automatic operation by detecting
	      the beginning and ending of a received image. They are
	      tested for both On and Off states.

	      FM detector
	      Checks the operation of the Phase Lock Loop circuit and
	      the Analog to Digital (A/D) converter. It is tested at
	      various frequencies to verify linearity.

	      AM detector
	      Checks the operation of the Automatic Gain Lock (AGL)
	      circuit, AM detector, and (A/D) converter.  The circuit
	      is tested at various amplitudes to verify linearity.

AM Graph	A test signal is applied and the AM detector
	      linearity (signal amplitude vs time) is graphically
	      displayed.  The graph should be linear and sloping
	      upward with time.

FM Graph	A test signal is applied and the FM PLL linearity
	      (signal frequency vs time) is graphically displayed.
	      The graph should be linear, sloping upward with time,
	      and centered between 0 and 256.

%900,5,5,5,5,End of file
