Abstract: A multi gigahertz digital radio frequency (RF) link terminal arrangement includes an indoor unit and an outdoor unit, interconnected by at least one high bandwidth communications element adapted to carry in a transmit direction a digital signal to be transported by the radiolink and in a receive direction an intermediate frequency digital RF receive signal to be transported by the radiolink. The outdoor unit includes an RF digital modulator integrated with a multi gigahertz digital RF amplifier assembly and at least two multi gigahertz digital RF receiver circuit assemblies, each having a multi gigahertz digital RF receive signal input and outputs for providing a respective one of a intermediate frequency digital RF receive signal. The indoor unit includes at least two RF digital demodulators having each an input for receiving at least one of the intermediate frequency digital RF receive signals, the RF digital demodulators adapted to exchange signal demodulation processing data.

Abstract: A highly efficient power supply, a method for supplying power, and a method for arranging a power supply, for a UHF or microwave radio frequency amplifier intended for operation with a signal that has a power level which varies at a high frequency rate. The power supply has an output for connecting to a power supply input of the radio frequency power amplifier and includes a high rate controllable voltage supply employing electronic linear devices connected to the output, an element for quantifying power dissipated by the electronic linear devices and a low rate controllable current supply connected to the output. Preferably, the current supply is a substantially constant current supply at the frequency of the radio frequency signal. Preferably, the controllable voltage supply has a control input and is arranged to be controlled for outputting a voltage that is a function of the high frequency power variation.