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-
- Operating FAX
-
- To operate FAX, you must press either the WFAX or the NFAX buttons. The
- HAM screen will be closed, and a 640x400, 16 grey level screen will be
- opened. If the Amiga you are using has more than 1 megabyte of memory,
- the AVT system will attempt to allocate a BIG memory for use with the
- FAX images. This memory consumes about 615k bytes. Yes, 615 THOUSAND
- bytes. This is because FAX images are extremely high resolution, at
- least compared to the images we are used to working with in desktop
- systems like the Amiga.
-
- In general, select the 1/3 button before receiving a FAX image. THis
- means that the system will receive 1200 lines of video - and every
- 3rd one will be drawn on the screen whiel receiving. This is the
- only way to receive a full fax image on a 1 megabyte machine.
-
- If you select the 1/2 button, evert second line will be shown, and only
- 800 lines will be recieved. If you select the 1/1 button, every line
- will be shown, and only 400 lines wil be received.
-
- The filter button (explained in the file 'Scope.doc') does affect
- FAX reception.
-
- In order to receive a FAX image, you simply press the RX button, and the
- image will begin coming in immediately. It will very likely NOT be
- aligned correctly, however - in order to accomplish this, press the left
- mouse button once, quickly. Note that the information now coming in has
- "slid" to the left. FAX images always start with a "phasing" period,
- which is a short time (10-20 seconds) when the video being sent consists
- of a short white area and then all black. If you are catching a fax
- image from the beginning, tap the left mouse button until this is aligned
- to the left edge of the screen.
-
- If you hold the left mouse button for about 4-8 scan line times, the
- receive will abort.
-
- Once the FAX image has been received, IF you have the fax memory
- allocated, you can pan around it by using the cursor keys on the keyboard.
-
- In addition, there is a window with PAN controls available if you
- click on the scope display - however, this function is still under
- development, so there may still be some problems with it. We suggest
- you stick to using the keyboard to pan around the fax images.
-
- You can save IFF, which saves a 640x400 bw screen, or you can Agian,
- only if the fax memory was allocated) save the actual FAX image, by
- selecting the appropriate option from the menu.
-
- WARNING! Do NOT select LOAD SSTV in FAX mode!
-
- If you go back to sstv mode (by pressing any SSTV mode button) then
- the fax image will be lost.
-
-