Example of a JT65B EME QSO
when calling CQ


WSJT info >>  Program setup  |  Initial configuration  |  PC to radio Interface  |

JT65B info >>  Guide for beginners  |  QSO example #1  |  QSO example #2  |

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:

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:

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:

So, In next TX period I continued CQing, waiting for more calls.

Easy, isn't it?


WSJT info >>  Program setup  |  Initial configuration  |  PC to radio Interface  |

JT65B info >>  Guide for beginners  |  QSO example #1  |  QSO example #2  |

 
Share: Twitter   Facebook   Buzz  
Home page Site map Radio Sherlock search engine Join the Mailing List ! 

Select Language English EspaƱol

1 user comments


#1 - rik on5gj - 02/05/2012 - 16:45
I'm new in JT65B !
It's a good help for my !
tkank's !

Add your comment to this page. (Important: Only comments directly related to the content of this page will be accepted. Other types of comments and complains can be E-Mailed to the webmaster.)

Name / Callsign
E-mail (Will not appear online)
Comment
To prevent automated Bots form spamming, please enter the text you see in the image below in the appropriate input box. Your comment will only be submitted if the strings match. Please ensure that your browser supports and accepts cookies, or your comment cannot be verified correctly.
»