The PK3 receiver is based on the R250M2 receiver. It is complemented by the display of the signal spectrum.
Range 1.5 to 25.5 MHz (with the possibility of shifting the range up to 31.5 MHz at the expense of lower ranges)
Operations A1, A2, A3, F1, F6 (F1 and F6 analysis only)
Spectrum display range 0.5 to 2 MHz
Power supply network
Source: http://museum.radioscanner.ru
Range 1.5 to 25.5 MHz (with the possibility of shifting the range up to 31.5 MHz at the expense of lower ranges)
Operations A1, A2, A3, F1, F6 (F1 and F6 analysis only)
Spectrum display range 0.5 to 2 MHz
Power supply network
Source: http://museum.radioscanner.ru