[Tinyos-help] About Sensitivity and RSSI.

[=?EUC-KR?B?udrGx7HZ?=]

Hello everyone.

In CC2420 data sheet. it specifies the high sensitivity (-95dBm).
Received power in cc2420 can be drived from RSSI value. (P  = RSSI + Offset
(-45dB))
The minimum RSSI value was -49dBm in my experiment. Therefore received power
-94dBm  was the minimum power in Tmote Sky.

Can i compare the minimum received power  -94dBm and sensitivity -95dBm,
directly?
I'm confused in this point.  Receiver sensitivity is the SINR (signal to
noise and interference ratio) but we just compute the received power
from RSSI value and Offset value.
Does Offset (-45dB) contain noise and interference?

Best regards
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