Duplicate spots

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  • Updated 2 years ago
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I am wondering if there is a away to limit the number of duplicate spots that start appearing on the panadapter after some minutes (like you can see in the picture below).I am using my own aggregator and I found that many duplicates have the same frequency but different "comment" xml tag. I am not using official API's but plain xml text via UDP socket.I am wondering, also, if APIs implement any logic that avoid this issue, like proximity range and Dictionary Data Structures.
Thank you very much73' Enzo

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IW7DMH, Enzo

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Posted 2 years ago

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Photo of K1DBO


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The Flex API does not remove duplicates or do any other filtering.  This is left up to the program sending the spots to the radio.

You could use Slice Master's ability to 'Listen for N1MM Logger+ broadcast' to receive the UDP packets you are sending.  It will handle the de-duplication for you and then pass the updates on to the radio.  But aside from the de-duplication, you'll have to do the rest of it yourself, or use something like DXLab's Spot Collector to do the filtering for you.

Photo of K1FR


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Enzo:  Under radio "settings" "spots" look for the slider that changes number of levels. You can reduce stack of spots that way.  73, Tom
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Dave AA6YQ

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In DXLab, SpotCollector maintains a database with one entry for each DX station active near a particular frequency operating in a particular mode. Each such entry records the locations from which its station have been spotted, the distance of the closest spotting station to your QTH, shortpath and longpath propagation forecasts generated by the VOACAP engine, a list of all spots, and status for the DXCC, IOTA, Leadboard, Marathon, VUCC, WAS, WAZ, and WPX awards. Since there's only one entry for each active station, it is straightforward to display them on SmartSDR without duplicates. It is also straightforward for users to query this database to show, say, all active stations needed for DXCC awards whose short-path opening probability exceeds 50%.
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IW7DMH, Enzo

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Thank you very much for the hint!