Personal radio station "Signal-402".
Receiving and transmitting radio equipment.The personal radio station "Signal-402" has been produced since 1994 by the Novosibirsk plant "Electrosignal". "Signal-402" is a shock-resistant simplex FM radio station of the VHF range, designed for two-way search-free and tuningless radio communication with similar portable, transportable and stationary radio stations. The radio station operates in one or two-frequency simplex, provides transmission of one of the four frequencies of a tone call, or without a call, indication of the dialed channel and radiated power in the transmission mode, indication of the battery discharge. The radio station has 10 fixed communication channels, randomly selected in one of the frequency ranges: 144 ... 149; 151 ... 157; 162 ... 168 and 168 ... 174 MHz with 25 kHz grid. The operating frequency for any of the channels can be programmed using a computer. Sensitivity 0.35 μV. Output power 0.3 - 0.7 -1, 3 and 2.3 W. Powered by a built-in battery with a voltage of 7.2 V and a capacity of 1.3 A / h. Dimensions - 170x72x43 mm; weight no more than 0.5 kg.