FIELD: radio communication and public address systems.
SUBSTANCE: invention is intended for issuing voice commands and special acoustic and optical signals for informing people in open spaces during various events. The radio station is connected to the first input of the sound synthesizer. The power supply is connected to the controller, radio, digital radio modem, sound synthesizer and low frequency amplifier. The output of the digital radio modem is connected to the controller input. The output of the controller is connected to the second input of the sound synthesizer, the output of which is connected to the input of the low-frequency amplifier, the outputs of which are connected to the internal speaker and external speakers.
EFFECT: ability to receive a warning signal about the approach of rolling stock from an automated warning system (AWS).
9 cl, 1 dwg
