A device configure to wirelessly transmitting optical signals via a satellite communication link includes a first sending arrangement and a first receiving arrangement. The first sending arrangement is configured to transmit optical signals via a first transmission path and a second transmission path to the first receiving arrangement. The first transmission path has a first transmission channel and the second transmission path has a second transmission channel. In addition, the first transmission channel is physically separated from the second transmission channel, while the second transmission channel is a low-rate transmission channel for transmitting amplitude-modulated optical signals.