9.3 System Setup
If you own CSS HF Wefax program, you have the ability to display
weather FAX on the screen of your personal computer. DO NOT USE AN AEA
"Y" CABLE WITH THE PK-232/DSP or PK/232PSK! This manual refers most
often to printing FAX on your printer, but the ideas and commands are
similar for using CSS HF Wefax program.
To hook-up the PK-232 for facsimile operation the radio must be
connected to either radio port 1 or 2. If all you want is to receive
FAX, you only need to connect the audio from your receiver. If you
wish to transmit as well, follow the instructions in Chapter 3 of this
manual for Radio Connections.
If you are using a CSS HF Wefax program, follow the instructions in the
program manual to run the program with the PK-232.
9.3.1 HF Receiver Settings
Set your HF receiver (or transceiver) to Upper Sideband (USB) unless
you have connected your PK-232 through the direct FSK keying lines.
In this case, you should select the FSK operating mode. Adjust the
volume to a comfortable listening level.
9.3.2 Tuning In HF Facsimile Stations
Facsimile is most often found on Upper Sideband and sounds similar to
monitoring an AMTOR QSO with both stations being of equal strength.
The most common facsimile signals are WEFAX, so we have set the PK-232
FAX default parameters to copy weather charts and many satellite
photographs. We recommend starting start with one of the listed
weather frequencies, or frequencies from Popular Communications in
Table 1 when first receiving facsimile.
Upon tuning into a WEFAX signal, you will notice that the facsimile
sound seems to repeat at the rate of twice a second. This is the the
horizontal scan frequency, and allows you to distinguish different
facsimile services by speed. Common horizontal scan rates are 2 lines
per Second, which is typically used in weather facsimile broadcasts,
1-line per Second for photographs, and 4-lines per second, for some
foreign facsimile stations. Listen for these repetition rates as you
tune across the bands in search of new pictures.
12/01 9-2
