The Atmosfera-2M portable radio receiver has been produced by the Voronezh and Grozny radio factories since 1962.
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Atmosphere-2M - modernization of the Atmosphere-2 model.
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The circuit of the HF part is left unchanged, and the circuit of the LF amplifier has undergone changes.
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It uses an output transformer for matching with a new low-impedance loudspeaker type 0.5GD-10, a matching transformer has been changed, and transistors in the low-frequency stages have been replaced.
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The receiver parameters remain the same.
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Ranges DV and SV.
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Sensitivity to SV 1.5 mV / m, DV 3.0 mV / m.
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Adjacent channel selectivity 26 dB.
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Rated output power 150 mW.
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The loudspeaker reproduces the audio frequency band of 300 ... 3000 Hz.
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The receiver is powered by 2 KBS-L-0.5 batteries.
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Current consumption at rated power 45 mA, at rest 12 mA.
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The body and dimensions are the same as for the Atmosphere-2 receiver.
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Weight 1.5 kg.
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The radio receiver of the Grozny radio plant had differences in the arrangement of the elements and the printed wiring of the bass amplifier (14th photo).
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