Target HF3 - Receiving and Saving Weather Fax Pictures

Each station has several frequencies, select the one which gives the
best results. It
will vary according to the time of day. Note: Not always
the strongest station gives the best results.
A weaker station may have
less background noise and give a clearer picture.
Make sure you are satisfied with the quality of signal you’re receiving on
the computer. Ideally there should be no change in the quality of the
signal being received. Many computers however (particularly models
built before the introduction of regulations to limit emissions of radio
interference) will emit radio interference which will degrade the signal.
To solve this problem it is necessary to locate the antenna as far from
the computer as possible. Use a
70 ohm coaxial cable to connect the
antenna to the receiver. It may also be helpful to locate the receiver
some distance from the computer.
If the interference is reduced by
unplugging the data lead, the noise is being conducted along the shield
of the cable.
A data lead with an inline filter is available at most radio
supply stores.
RECEIVING PICTURES
With the computer in DOS and the C prompt displayed type CD \
RETURN, CD WEATHER RETURN, TARFAX RETURN. (Note: Also the
user may modify the auto exec. bat file to add the directory
C : \
WEATHER to the default path, allowing the software to be run from
anywhere). After selecting TARFAX software select either
F for
WEATHERFAX and refer to Wefax
instructions or R for RTTY
(Radioteletype) and refer to RTTY instructions.
WEFAX (WEATHERFAX)
The menu page will be displayed. Press the C key. Select the serial port
you are using
- 1 or 2. (If you are not sure then try 1) followed by ESC.
The zoom factor defaults to 1.2 and need not be adjusted. (Refer to
section on zoom.)
Press the
S key to move to the display screen. Press the S key again
and printing will commence.
If a picture is being transmitted it will start to
write from the top of the screen.
If no picture is being transmitted then a
white background will start to print.
(If the picture remains totally
black then the wrong com port is selected.)
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