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Initial WSJT/JT44 Software Setup
1. Start WSJT Software.
2. Click SETUP/SET COMM PORT and put in the serial port you are using.
3. Next click SETUP/OPTIONS
4. In options page put in
MY CALL = your call sign
GRID LOCATER = your 6 digit grid locator (Put in you grid like this EM84ak not EM84AK)
UTC OFFSET = leave at zero (default) to have WSJT display local time, or put in your UTC
difference to have it display UTC time in WSJT software. Best to put in for UTC
time so the new JT44 mode moon tracking will work correctly.
TX MESSAGE FORMAT = for North America click on NA DEFAULTS
TONE AMPLIFIERS = you can leave the A-B-C-D defaults at 1.000 if all 4 of your WSJT
tone levels put out the same power out. See here to test by using TUNE
A-B-C-D buttons on WSJT software below TX STOP button.
FREQ MHZ = If you will be doing JT44 EME then you need to put in the freq mhz for the band you
you will be susing so that the WSJT/JT44 will display correct doppler etc for that band.
OUTPUT = You can select left-right-both which will allow you (depending
on your setup) to
have to hear your xmit audio while you are transmitting. You can just leave on "both" if
Click DONE and exit options page
Setting Up For A Sked
5. Set your receive noise
level to 0db in WSJT/FSK441 software. You normally use your rig ext spkr
to your sound card LINE IN. In WSJT/FSK441 software click RECORD then STOP. Look at very
bottom in the middle of WSJT/FSK441 software. It will tell you the receive noise level there. You can
adjust it to 0db by your rig AF gain control, and also by WSJT SETUP/ADJUST RX VOLUME CONTROL.
Be sure in the mixer that your LINE IN is not muted and use the sliders there to adjust to get your 0db receive
6. Next you need to test to be sure you are not
overdriving tour rig audio input. This can be controlled by your
Mic Gain control ( if you are feeding your sound card output into rig mic input ) also can be adjusted by
WSJT SETUP/ADJUST TX VOLUME CONTROL if you are using a packet input to the rig. Also works
if you are using the Mic input. Use the WAVE slider to adjust the TX gain. See also this information to know
how to test to be sure you are not overdriving rig transmit audio. Also be sure you Mixer/ WAVE does not have
Mute box checked.
Before you try to run a sked be aware your PC
clock needs to be as close to WWV as possible. If you download
and install Dimension 4 software it should keep your PC clock to within .01 sec of WWV. You can see how I have my
Dimension 4 setup here. Also if you use Windows XP you need to read this.
Now Switch To JT44 MODE
that the software is all setup you are ready to run a sked. To run a sked with a
station you need to click
setup/options and put in the FREQ MHZ box the freq you will be running EME on then click DONE.
Next click MODE and select JT44. OK now that you are in JT44 mode you need to put in THEIR CALL SIGN in
"To Radio" box, and then either check or un-check the box that says EME Msgs then click Generate Std Texts.
Check or Un-Check "TX First" depending on if you are the staion that will TX 1st 30 seconds.
Note - check or
un-check the box that says EME Msgs will pick either standard EME message format or JT44 tropo
8. Click on AUTO PERIOD OFF to change it to AUTO PERIOD ON to start running the sked. This will trigger
the WSJT software to start the automatic T/R sequencing.
Note - if you receive a message off the moon the
DT (display time) on your received signals should be +2.5 seconds.
It will show DT= +0 for tropo non EME signals. That is if both stations clocks are set properly to WWV. Some time
variance from these values will be OK. If you have any questions about the functions in WSJT/JT44 point your mouse
at any of the buttons and a window will pop up to tell you waht it is for. Also READ the documentation for JT44!
How To Monitor With JT44 Software
9. You can only monitor either the 1st 30 seconds or the
2nd 30 seconds so far with JT44 version 1.9.4 (Not Both). To
try this. Check or un-check TX First depending if you want to monitor 1st or 2nd period. Next go to Setup and select TX Mute.
Your F3 key will do the same thing. Next click Auto Period is OFF to change it to Auto Period is ON to start JT44 cycling.