Seven Necessary Steps:
(From downloading the program to adjusting the
receive and transmit parameters)
- Download the latest
version of WSJT (Click Here for the Download Site...)
- Download the Text WSJT
Help Files, PRINT THEM and READ THEM!
- Hook up the radio
interface. If you're presently using a PSK31 program your
interface will work properly with WSJT. If you have a new
interface hooked-up double-check your connections.
- Setting up your station
parameters:
Open the WSJT application and ...
- Go to the toolbar menu.
- Select Set Up
- Select Options
- Enter your call ...
- Enter your grid ...
- Enter your UTC offset...
- If unsure leave Tx Delay,
Rx Delay at the default settings at this time and leave
Id blank. (A cw or voice wave file can be added later if
desired)
- Click on the Done Button
- Select Options
- Select from the dropdown
menu "Set Com Port"
- Enter your Com Port for
the PTT
- Click on the "Ok"
button
5. A
Simple operational test to verify your hardware.
- Open up the WSJT
application
- Turn the radio off
- Click on the WSJT
button <A>
- The interface should
indicate that it is in the TX position (Most units have a
Red LED)
- Wait a few seconds and
the interface should swap back to Rx
- Turn the radio on and
adjust the rf power output to minimum or zero
- Click on the button
<A>
- The radio should switch
to transmit
- Click on the <TX
Off> button and observe that the radio switches to Rx
agn
If the above worked, then
your PTT is functioning properly. If not check your setting and
cables and repeat until the PTT functions properly.
- Now click on the WSJT
Button <Record>
- After a few seconds (5
- 7 seconds) click on the <Stop> Button
- You should have one of
the following:
- Green line in the
display or a Message in a Pane on the status bar
indicating "Low or High Rx Noise"
If the green line is seen,
this completes the operational test. But if not seen then click
on the toolbar Set-up option and select the dropdown menu item
"Adjust Rx Volume Control". Now from there adjust the
appropriate widows slider mixer control, usually the Microphone
control if using the soundboard mic input or audio input, upward
and repeat the above steps until you see the green line in the
display window. (This level should be set to Rx noise 0db)
6. Adjusting
the tones.
- Operate with the speech
processor off
- Turn off any type of
transmit equalizer if your set-up includes one
- Check that your windows
sound card tone controls are set to mid-range.
- Set your rig to 2.4kc if
your transmitter has different Tx filter passbands.
(Max freq. Used by WSJT is 2205Hz
and the lowest is 882 Hz)
- If you have 3D Stereo
sound, turn it off by using the window Mixer Advanced
Settings.
- Set your Radio MIC Gain to
the normal settings for USB talking.
- When transmitting use the
windows Sound Board Mixer and adjust the slider so the
ALC shows no indication on the meter. The Mixer controls
can be found in the Set Up dropdown menu.
- Set the A-B-C-D tones for
the same power out. (Tone settings found in the "Set-up"
Options and instructions are provided)
Note: when set properly all 4
tones should produce the same power out plus muti-tones should
read the same as the single tones.
7. Adjusting
the WSJT receive level.
- If your radio has a AGC
Fast setting, set it to fast or turn it off
- Turn your Noise Blanker On
- Turn off any Notch Filters
or DSP Noise Reduction Controls
- Set the AF control to the
normal listening position
- With the WSJT application
and the mode set to FSK441 do the following...
- Click on Record
- Wait 5 to 7 seconds
- Click on Stop
- Read the dB reading on the
status bar
- Open up the Rx Mixer
Controls from the Set Up Menu
- Make adjustments to the
"Microphone" slider for 0 dB
- Repeat till 0 dB is
achieved
These are the software settings
I start each meteor scatter FSK441qso attempt with.
W = 20 S = 1 ST = -2 QRN 5 Tot
= 400