Bluetooth extended range

[Cy]

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!

[Andreas]

Hi,

 

I do not believe similar tests or a comparison with the nRF52840 has been performed, not by us anyway. I would expect the dongle to perform slightly worse as we have seen earlier that similar dongle designs have lower gain compared with similar DK designs. Still, this is very environment dependant, there might be some environments where both reach 3200m or any given distance, and there might be some environments in which only one or none of them do. Based on our latest tests 3200m might seem a little ambitious, but again it might be possible for some environments.

 

Best regards,

Andreas

[Cy]

Excellent vagueness!