Radio R-107


Russian R-104M
Radio R-105M-UM2/3
Radio R-105/108D
Radio R-107
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Radios in the field
Transm 100 W.s
"Dorette "




Technical data:
Mass + weights:
Radio: L/b/h: 375 x 1850 x 270 mm; 16.9 kg.
Wooden box: L/b/h: 615 x 340 x 460 mm; 45 kg.
Transmitting power
1 Watt.
Frequency departure
+ - 6 kHz, which can be controlled with the inserted xtal calibration generator.
under 1,0 UV with signal-to-noise ratio of 20 dB
Sections of the radio:
Wooden box with:
Radio R-107, 1 laryngeal micro set, antenna bag, 1 Kulikow antenna, counterweight, attachment framework, mounting plate for issued antenna, 2 stretcher belts, 6 parts for 2,7-m- rod antenna, Koax feeder, diodes.
In the radio operator`s bag,
Telephone handset, long wire antenna, hand lamp, screwdriver.
In the antenna bag:
Long wire antenna (Beverage), 40 m, 6 timber columns, 4 herrings with anchoring wire
Frequency band:2 frequency band: 1. 20-36.0 and 2. 36-52Mhz
              4  mecanical programmable frequencies.
2 times HKN-20. 12 hour standby with 5% transmit.


R-107, R-107T, R-107D, R-107M
The R-107 transceiver is one of the newest additions to Soviet communications. It is a man-packed frequency modulated transceiver which operates with in a frequency range of of 20 - 52 MHz. encompassing 1,231 useable frequencies ( Channels. ) This radio uses two bands, Band One is 20-36 MHz and Band Two is 36-52 MHZ. The set is capable of using the standard Kulikov antenna, a combined rod ( 2.7 meter ) or a travelling wave ( 40 meter doublet ). It has both continuous tune and pre-set capability with up to four pre-set frequencies. Power for the set is supplied by two rechargeable KNP-20 2.4 volt batteries. The R-107 is a sturdily constructed radio with a working weight of 16.9 Kg ( 37.2 lb. )

The set has a power output of 1 watt and a range of 6 kilometres ( 3.75 miles ) with a whip antenna 6-8 Km ( 3.75 - 5 miles ) with a combined rod antenna and 12 - 25 Km ( 9.4 to 15.6 miles ) with a travelling wave antenna. The set can be used as a radio relay station and can be remoted by using the standard field telephones, the TAI 43 or the newer TA 57. The set is designed for communications up to company level. This set operates in the same frequency range as the AN/PRC 25, AN/PRC 77 and the AN/VRC 12 and can be netted with these radios. This set is replacing the R-105M series of radios.

It was developed after the R-105M series at the same time as the R-123. That would make it mid to late 60s. In general they are 20-52 MHz FM man-pack. There are at least 4 versions. R-107 ( tube and solid state versions ), R-107D ( LED digital frequency readout ).

R-107 series working as told,on 50-52Mhz, 6 meter amateur band FM. I have used it on this band and get very nice communications both ways.Connected to a travling-wave antenna I get comminications over 40km on ground wave.

R-107M (latest and weird variant of R-107):  power output is 5W,  modulation is FM or CW, a Morse key can be attached to the top of transceiver

The KNP-20 cells are welded together in two's and together produce 2.4 Volts. Used in the R-107. Nickel Cadmium or Nickel Iron battery. Supplied without electrolyte and must be filled before charging. Electrolyte is a solution of Potassium Hydroxide in distilled water with a small amount of Lithium Hydroxide. Electrolyte density 1.16 g/ml. Normal charging rate, 4 Amp for 6 hours.


                                                       Working with info and inside-pictures.



Mechanical 4 frequencies memory

                                                                                           This site was last updated 10/25/15  Home

R-107-M version
R-107-Digital version
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