Steval-FKI433V2 evaluation board: RSSI level, shown by S2LPRadioGetRssidBm() function, and receiver sensitivity

[bvn123]

When two Steval-FKI433V2 evaluation boards yet maintain connection, the S2LPRadioGetRssidBm() functions for both boards show about -103dBm...-104dBm.

I can't get less RSSI level.

Has the least possible RSSI the same value as the receiver sensitivity for the Steval-FKI433V2?

If yes, why declared receiver sensitivity (up to -130 dBm) is not achievable?

[Winfred LU]

Hi bvn123,

It is simply because what you measured was not the receiver sensitivity.

The receiver sensitivity is the minimum power level of the signal at the receiver input,

produced by a carrier at the nominal frequency of the receiver,

modulated with the normal test signal modulation,

which produces 1% BER after demodulation without correction.

It will be better to measure conductive mode, with proper RF settings.

Best Regards,

Winfred