| 摘要 |
FIELD: electrical engineering. ^ SUBSTANCE: invention can be used in electrical engineering. The system contains transceivers, which comprise a microphone, connected in series to a microphone amplifier, phase modulator and a microwave oscillator, series connected first and second circulators, reference cavity, mixer diode, intermediate-frequency pre-amplifier, multiple-tuned transformer, intermediate-frequency amplifier, phase-locked loop system, low-frequency amplifier and headphones. The microwave oscillator is connected through a ferrite cross coupling to the first circulator, which is connected in series to a decoupler, rectifier diode and first switch, which in turn is connected to two extra circulators. The first extra circulator is connected to an omni-directional antenna and the second switch. The second extra circulator is connected through its first output to a directional antenna, and through its second output to the second switch, which is connected to the third switch, which has terminals for parallel connection to low- and high-pass filters, which are connected in parallel to the fourth switch and then the mixer diode. ^ EFFECT: more reliable and faster communication. ^ 2 dwg |
