RADIO-FREQUENCY TRANSCEIVER SYSTEM FOR DIGITAL COMMUNICATIONS Russian patent published in 2001 - IPC

Abstract RU 2168860 C2

FIELD: radio communications; interfacing radio-frequency signals with digital modems used for radio communications. SUBSTANCE: radiophone transceiver system has antenna, antenna interfacing system incorporating low-noise amplifier, power amplifier, coaxial cable, adjustable attenuator, output power determination system, two oscillation generating circuits, and modem interfacing system. Method for receiving radio-frequency signals includes steps at which radio-frequency signal is received, amplified, passed through conducting cable, amount of signal decay is determined, radio- frequency signal is attenuated in response to signal decay value received. EFFECT: reduced response to changes in environmental conditions in close proximity of antenna, reduced insertion loss and noise. 16 cl, 4 dwg

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RU 2 168 860 C2

Authors

Kristofer B. Martin

Richard K. Kornfeld

Sherman Gregori

Dates

2001-06-10—Published

1996-03-01—Filed