Krot-M Radio receiver
HF Radio receiver Krot, developed in 1947 based on the ideas of designs captured German radio Koeln E-52B, Telefunken T9K39 etc. Produced from 1948 to 1952 at the Kharkov radio factory number 158. HF Radio receiver Krot-M, was produced from 1953 to 1960.
Adjustment range frequencies. 1.5 – 24 MHz.
Sensitivity: 0.25 uV CW, 3 uV AM.
Operating mode: CW, AM.
Bandwidth: 1 kHz to 3 kHz and 10 kHz.
Weakening Image rejection:> 50 dB.
The weakening of adjacent channel:> 50dB.
Frequency stability: 1.5 kHz / hour.
Dimensions: 681 x 356 x 478 mm.
Weight: 85 kg of the receiver, the power supply 40 kg.
In the Krot radio receiver, there are gold contacts on the range switching drum. In the radio receiver Krot-M, unlike just Krot, there was never any gold on the contacts, in it they were replaced by an alloy of silver with cadmium.