Return the calculated power in 0.01 dBmV. Important, this function will hang the SNMP agent. Be carrefull! Also, the RBW used will be caluclated to get as near as possible to 2048 bins. That we, we achieve the best possible result within the span specified. You can look at the planPowerRbw and plantPowerNbBins mibs to know the value used. Also, the FFT windows filter use is Hanning. So do not expect to get the best result on analog channels.