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Since the I-quarter of 1992, the amateur radio set-designer "Yana" has been producing the Scientific-Industrial Commercial Project "CAAS".
The radio designer is designed to assemble a set of two small-sized simplex radio stations.
The assembly is available even to a novice radio amateur.
For its successful implementation at home, an oscilloscope and a universal measuring device (avometer) are required.
The transmitter and local oscillator frequencies are stabilized by quartz resonators.
PC specifications: transmitter frequency 27.14 MHz;
output power 10 mW;
amplitude modulation.
The receiving path is superheterodyne, an intermediate frequency of 565 kHz.
The sensitivity of the radio with a signal to noise ratio of 10 dB is not worse than 3 μV.
Supply voltage 9 V. Antenna - telescopic, 650 mm long.
The mass of one radio station is 245 gr.
Operating temperature from 15 to 40 ° C.
Range in the city - at least 700 m, above the water surface - at least 2.5 km.
Registration and permission to operate the radio station is not required.
The price of a set of a radio designer is 1300 rubles (for 1992).
The company also supplied ready-made radio stations.
The price of a set of two collected and adjusted radio stations is 2600 rubles.