Wearable VHF-FM radio stations R-105M, R-108M, R-109M.
Receiving and transmitting radio equipment.Wearable VHF-FM radio stations "R-105M", "R-108M", "R-109M" have been produced since 1967. The R-105M portable backpack VHF-FM radio stations have replaced the outdated R-105D radio stations. The upgraded radio stations were also produced in 3 versions: '' R-105M '', '' R-108M '' and '' R-109M '' and differed from each other in different frequency ranges, coinciding with the old versions of the radio stations '' R -105D '', but with more working channels in each range. The frequency range of the R-109M radio station is 21.5 ... 28.5 MHz (13.95 ... 10.52 m), the R-108M radio station is 28.0 ... 36.5 MHz (10.7 ... 8.22 m), and the R-105M radio station - 36 ... 46.1 MHz (8.3 ... 6.5 m). A radio station of the "R-105M" type, receiving and transmitting, with the possibility of remote control and retransmission of signals. All radios are equipped with whip antennas, short and long, and directional beam antennas. The radio stations allow communication when located on the ground, behind the back of a walking radio operator, as well as on board a car when driving, from a shelter underground, using a 10 m long coaxial feeder.The radio stations provide a communication range of up to 30 kilometers with high efficiency and noise immunity. The DEMSH-1 type microphone and TA-56m headphones are combined into a headset. You can also use a headset in the form of a handset. The radio stations are powered by 2x 2KNP-20 batteries or 4x KN-14 cells with a total voltage of 4.8 V. Frequency modulation, simplex communication. Sensitivity 1.5 μV. Optical scale in 25 kHz divisions. Transmitter output power 1 W. Deviation 5 kHz.
