RU98107234A - DEVICE FOR SELECTION OF OPERATING FREQUENCIES FOR DECAMETER RADIO LINKS - Google Patents

Claims (1)

A device for selecting operating frequencies for decameter radio communication lines, comprising a radio transmitting and receiving device, an average detector, an analog-to-digital converter, comparison units, a threshold signal generation and storage unit, a reference pulse unit, a decoder, an “I” circuit, an arithmetic device, a registration unit and a signaling unit, characterized in that the transmitting and receiving devices of the extra long wavelength range are used, in addition, the threshold signals in the generating and storage unit according to Ogove signals are determined degrees of ionospheric disturbance Defined values planetary geomagnetic activity index, and the arithmetic unit calculates the value of the recommended rate from the formula

wherein the output of the ultra-long-wavelength radio transmitter through the radio signal propagation medium is connected to the input of the ultra-long-wavelength radio receiver, the output of which is connected through an average value detector to the input of an analog-to-digital converter, the R outputs of which are simultaneously connected to the first R inputs of the first comparison unit, the formation and storage unit threshold signals and through the circuit "And" with the first R inputs of the second comparison unit, while the first R outputs of the formation unit and injuries of threshold signals are connected to the second R inputs of the first comparison unit, and the second R outputs are connected to the second R inputs of the second comparison unit, the output of which is connected to the input of the decoder, K outputs of which are simultaneously connected to the first K inputs of the arithmetic device and to the first K inputs of the device registration, the output of which is connected to the second input of the alarm device, the first input of which is simultaneously connected to the output of the first comparison unit, with the (R + 1) -th input of the "And" circuit and with the alarm input of the device registration, the second K inputs of which are connected to the K outputs of the arithmetic device, the second K inputs of which are connected to the first K outputs of the data input device, and the control input is connected to the sixth output of the reference pulse block, the first output of which is connected to the control input of the analog-to-digital converter, the second output is with the control input of the first comparison unit, the third output is with the control input of the threshold signal generation and storage unit, the fourth output is with the control input of the second comparison unit, and the fifth the output is with the control input of the decoder, and the T outputs of the data input device are connected to the T inputs of the threshold signal generation and storage unit.