This is an example of a real QSO made by EA6VQ that could help
understand beginners the right procedure for calling CQ and making a QSO via the
Moon. (Please notice that the values of date, time, azimuth, elevation, etc.
shown are not the real values but the values when I recreated the QSO from the
WAV files in order to make this page)
In this case I was going to call CQ on my usual frequency (144.139
MHz) and transmitting the first period (even minutes), so I:
Tuned the transceiver to that frequency
Blanked the "To radio" and "Grid" input
boxes, pressing the F4 key
Checked the "Tx first" box (as I had to TX first
period)
Unchecked the "Freeze" box, so that the program
would try to decode any signal he could detect.
Selected the Text 6 (CQ....)
Set the "Auto" to ON so that the program would
control the TX and RX sequencing automatically.
In this way the program was transmitting my CQ the first periods
(even minutes) and listening the second periods (odd minutes). After some time I
could see a strong signal in the SpecJT window.
And when the program decoded I could see it was S52LM answering
my CQ. Then I:
Double clicked on the "S52LM" text. This simple
action performs automatically the following:
Fills the "To Radio" box with the text you
have double clicked on
Looks for that callsign in the CALLS3.TXT file and if it
finds it fills the "Grid" box with the corresponding grid
square
Generate the appropriate transmission texts
Select the "Text 2" as the text to send (When someone
answer your CQ you should send him the "O" report [OOO])
Clicked with the mouse on the red spike (that corresponds to
the frequency of the JT65B Sync tone) and checked the "Freeze"
box. With this simple actions I told the program that I wanted it to
concentrate on decoding signals which Sync tone was right on that frequency.
Decreased the value of "Tol" to 50 (50 Hz). This
is like setting a passband filter of that width, so the program will not
take care of other Sync signals, even although you still could see them in
the SpecJT window.
So, the next TX period the program sent the "Text 2"
(Callsigns and "O" report) and then passed to RX. Then I could see the
following in the SpecJT window.
and after the decoding I could see that S52LM had send me an
"RO", confirming that he had received my "O" report and at the same time
sent me an "O" report as
well. (Please notice that in EME it's not meaningful to use the RST report
because the signals are almost always too weak, so the normal is to exchange an
"O" report, meaning that both stations are capable of copying each
other.) I
selected the "Text 4" (RRR) to confirm him I had received his
"RO".
WSJT transmitted my "RRR" message and then passed to RX
again. This time I could see the following in SpecJT.
And when WSJT decoded the message I could see that S52LM was
sending me a 73 message. (An EME QSO is
considered complete when one of the stations receives the "RRR", not
before. Sending or receiving the "Text 5" (73) as a final courtesy
message is not required to consider the QSO as
complete but it's a common practice to send it once, after having received the
"RRR" or "73" from the partner station). So I
selected "Text 5".
After having sent "73" for one period I was ready to
continue calling CQ, so I:
Pressed the F4 key, that blanks the "To radio" and
"Grid" boxes, and unchecks the "Freeze"
Selected the "Text 6" ("CQ .....")
Clicked the "Erase" button to clear the received
texts area
Clicked the "Clear Avg" button to reset the
message averaging
So, In next TX period I continued CQing, waiting for more calls.
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