Enable the check for duplicate QSOs

The double QSO check is controlled by

• an Option in the QSO-Entry option dialog. and
• the Start / End time defined in the active Event entry

There are different reasons to make a duplicate QSO check. Depending this reason, the settings of the Option and the Start / End time can be different. I list some examples hereafter.

Duplicate Check during a Contest

This is the most obvious usage of these function.

In a Contest only the QSOs made within the period of the contest count as double. But your logbook probably contains all your QSOs. Therefore we have to check if a QSO is a double within the period of the contest. That means you have to specify this period somewhere.  The place you do this is the Event  Entry.

If you are a serious contester you will probably define a separate My-QTH entry for each contest. If you only want to distribute some points, you can just add the date range of the contest period to your standard My-QTH Entry. After the Contest you probably clear the dates again

To enable double QSO Check for  a Contest proceed as follows:

• Open the QSO-Entry Window
• Select the My-QTH Page
• Press Detail / New
• Either create a new Event Entry for the contest or select the entry you want to use
• Set the Start- and End- date and time
• Save the Event Entry
• Press the right mouse button and select Option from the pop-up menu
• This opens the QSO-Entry option dialog
• In the Option dialog set:
  • Warning for duplicate QSOs
  • Select if you want a warning message or if the call should just change the color in case of a duplicate QSO
  • If the rules of the  contest allow cantacts on the same in different modes check Include Mode in Dup/Check
    

Duplicate Check for all QSOs

If you want a general check for duplicate QSOs it is very similar to the procedure explained for duplicate check for Contests. You should either set the Start / End date  to a date range which includes all your QSOs or  not enter a date range at all. If there is not date defined, Swisslog sets a date range fro 01.01.1901 to 12.31.2999.

But remember a duplicate check always includes the Band. So if you work a station for the first time on a Band  it is not a duplicate QSO even if You have worked the same station on an other band.

If you want to know if you work a station for the very first time, you should use the option color of Call if first QSO with Station which can be set in the QSO-Entry option dialog