Hi, I am trying to understand the values that RssiDemo provides. I am using an IRIS mote based on Atmel RF230 radio transciever.
The value range that I am getting from RssiDemo is 0-84(following RSSIDEMO tutorial) so I can figure out that what I getting is the energy value and not the RSSI. Also I saw the makefile and the flag is "DRF230_RSSI_ENERGY". Looking the RF230 datasheet I can understand that when I receive a 0 the receive power is -91 dBm or less so I can say PRF=Energy_VALUE - 91 (dBm)?. In case that this is rigth, if I relate it with the RSSI, following the formula "PRF = RSSI_BASE_VAL + 3•(RSSI - 1)" with a RSSI range of 1-28. The maximum PRF=-10dBm and minimun is PRF=-91 dBm. Using the Energy_Value the maximum PRF=-7dBm Someone could tell me if I am rigth and if that case, why there is a 3 dB difference between both methods?. Thanks in advance for your time Regards Pablo.
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