INTERMEDIATE FREQUENCY AMPLIFIER MODULE Russian patent published in 2007 - IPC H03F3/189 H03J5/24 

FIELD: receiving route for radiolocation and analogical systems, possible use for providing highly productive primary processing of signals in real time scale.

SUBSTANCE: module of intermediate frequency amplifier contains working signal channel 1, containing band filters 2,5,9, discontinuous controllable attenuator 3 and amplifier 8, first, second switches 4,7, settled attenuator 6, control device 10, made with possible exchange of controlling information, containing bidirectional output for serial control information communication line. To provide system for controlling serviceability of intermediate frequency amplifier module built into working signal channel, third switch and threshold detector are added. Intermediate frequency amplifier module may contains n channels of working signal, where n≥2, while control device contains means for transferring control information into n channels of working signal.

EFFECT: expanded functional capabilities, namely: program controlled amplification, controllable frequency selection of signals received at intermediate frequency, improved resistance to interference and cleanness of spectrum of output signals.

3 cl, 3 dwg