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Bluetooth extended range

I am inquiring about the range of the nRF52840 USB dongle. I see a meandering antenna on the PCB. This is different from the DK's and am wondering if the meandering antenna will support the range of 3200 meters as I have read in this forum? DK's were tested out to 800 meters with some 12dBm of headroom left within the radio budget. Is the meandering antenna designed to match the PCB antenna of the DK's?

Thank you!

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