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What PER threshold of RX sensitivity??

Gordon Liu

Dear Sir,

I'm testing the Rx sensitivity of EVB (nrf52840-DK).

I use PER 30% be the thresholde and get Rx sensitivity; -92 dBm/ 1M , -88dBm/2M.

It's different with datasheet  -95 dBm/ 1M , -92dBm/2M.

What PER threshold of RX sensitivity ??

PS: I use the test tool "nRF-DTM-1.0". and length=37byte.

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  • +1

    Hi,

    When using 37byte payload a PER of 30.8% is around the sensitivity yes.

    It looks like there is a ~3dB difference here between measurements and product specifications. There may be some variations over the 2.4GHz band due to un-linearities, and also some variations due to production lots, however I suspect that it may be mostly due to loss in cable and connectors. 

    Best regards,
    Kenneth

Reply
  • +1

    Hi,

    When using 37byte payload a PER of 30.8% is around the sensitivity yes.

    It looks like there is a ~3dB difference here between measurements and product specifications. There may be some variations over the 2.4GHz band due to un-linearities, and also some variations due to production lots, however I suspect that it may be mostly due to loss in cable and connectors. 

    Best regards,
    Kenneth

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