Patent ID: 11898440
Assignee: RAPTOR DATA LIMITED
Field: Civil engineering (Other fields)
Classification: CPC E  G  H | IPC E  G  H

Claim 1:
2. The apparatus of claim 1, wherein the communication channel is operable over a plurality of frequency bands, wherein the receiver is configured to receive from the node by way of the communication channel, for each of the frequency bands, corresponding first and second signals having frequencies in the frequency band, and wherein the processing circuitry is configured to, for each of the frequency bands, determine a calibration function depending on the respective first signal, process the corresponding second signal depending on the calibration function, determine the suitability of the frequency band for data communication with the node depending on the processed second signal and output an indication of the suitability, and wherein the processing circuitry is configured to determine the suitability of the frequency band for data communication with the node depending on the respective processed second signal by comparison of the respective processed second signal to predetermined reference data.