Retrieve unique reporter in certain time frame and band from D-Base

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PA9AD
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Joined: 2014/12/02 - 18:22
Retrieve unique reporter in certain time frame and band from D-Base

I have many reports of my WSPR transmissions a 15 hour time-frame on 40 meter.
Great data!
I am also interested of all unique reporters in this same timeframe, especially the onces who did not reported me. This gives my valuable additional information in the analysis of the data.
I tried the database filter, but only got error reports.
Anybody have tips hoe to get this data?
Thanks, Ad, PA9AD.