Patent ID: 6850765
Filing Date: 2005-02-01
Classification: H04B

Abstract:
1. A transmitter for transmitting RF data in an RF communication network using a plurality of carrier frequencies, said RF data being represented by an information signal at a selectable carrier frequency, the transmitter comprising: a data splitter arranged to receive said information signal modulated onto an intermediate frequency lower than the carrier frequency; and two transmitter paths each having an input connected to the data splitter and each having a frequency converter arranged to upconvert the intermediate frequency modulated signal to a respected carrier frequency, the carrier frequency being individually selectable for each transmitter path, the transmitter being configured such that for each of the two transmitter paths, when an information signal is being transmitted on that transmitter path, the carrier frequency for transmission on the other transmitter path is being selected, such that, in each case, the carrier frequency being selected for a channel is distinct from a previous carrier frequency at which that channel is transmitted.