| 摘要 |
The invention relates to a receiving unit for searching for at least one unused transmission channel in a communications device in a network of distributed stations and/or for monitoring transmission channels such that specific messages can be determined for that communications device, and to a method for its use, in particular in a local broadband network or a digital broadband home network. The receiving unit comprises a filter unit (5), which has a broadband reception characteristic in a monitoring mode, such that signals from a number of transmission channels can be received in parallel; a digital filter device (7) for subdividing a broad filter band, which has passed through the filter unit (5), into a number of component signals which each have a narrower bandwidth than broadband signal and can each be associated with one of the number of transmission channels; and an evaluation device (9) in order to determine at least one signal strength for each of the number of component signals so that it is possible to decide which of the number of transmission channels is or are being used and/or which of the number of transmission channels is or are not being used. |
