Pulsar EME, FSK441, JT65, JT6M quick start

WSJT 4.6 User’s Guide

WSJT is a computer program for VHF/UHF communication using state of the art digital

techniques. It can decode signals propagated by fraction-of-a-second reflections from

meteor trails, as well as steady signals 10 to 20 dB weaker than those needed for

conventional CW or SSB.

• FSK441 for high speed meteor scatter

• JT6M for meteor/ionospheric scatter on 6 meters

• JT65 for extremely weak troposcatter and EME

• EME Echo for detecting your own echoes from the moon

• SSB transceiver and antenna for one or more VHF/UHF bands

• Computer running Microsoft Windows

• 200 MHz or faster CPU

• 32 MB of available RAM

• Monitor with 800 x 600 or higher resolution

• Windows compatible sound card

• Computer-to-radio interface using a serial port to key your PTT line (or use VOX)

• Audio connections between transceiver and sound card

• A means for synchronizing the computer’s clock to UTC

1. Download WSJT from http://pulsar.princeton.edu/~joe/K1JT or the European

mirror site, http://www.vhfdx.de.

2. Execute the downloaded file to install WSJT to a directory of your choice.

3. If you have not already done so, print a copy of this manual and keep it handy.

4. Connect appropriate interface cables between your computer and radio. (For help with

the hardware interface, refer to one of the many descriptions of other sound card modes

such as PSK31.)

5. To start the program, double-click on the desktop icon for WSJT.

6. Select Options from the Setup menu (see picture on next page) and enter your callsign,

grid locator, and UTC offset. Click Done to dismiss the Options screen.

7. Select Setup | Set COM Port and enter the number of the serial port you will use for

T/R control. Enter 0 if you will use VOX control.

8. Indicate on the Setup menu whether you wish to use the DTR or RTS line for PTT

control. (If not sure, check both.)

These settings should be adequate for learning your way around the program. If you are

new to WSJT, work through the examples at the top of page 3 and then continue reading

this manual, stopping to experiment with the program when it seems appropriate.