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Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an

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Soviet Spy Radio “Sever”

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ANTENTOP- 02- 2010, # 014

Soviet Spy Radio “Sever”

 

It was produced “Sever” and “Sever-bis.” The radio differed by frequencies and a little in design. RX/TX  for radio “Sever”-   3,62—12,25/3,62—6,25 –MHz. RX/TX for radio “Sever- bis”- 2,22—6,66/2,56- 5,77- MHz.

There were used anode and heater battery for feeding the radio. For high voltage there were used 4 batteries BAS- 60 (each battery has 60-V and 0.45A/H). For heater there were used 2 battery 3S (each battery has 1.5- V and 29.0 A/H). It was produced in small quantity radio “Sever” with feeding from the main.

Antenna for the radio was length of wire in 12 meters long. The wire could hang up at any object (for example, at tree). There were two counterpoises, 3 and 12 meter long each.

Depending on the transmitting frequency a proper counterpoise was used. As usual, for low frequencies it was used counterpoise in 12 meter length, for high frequencies it was used counterpoise in 3 meter length. Counterpoise placed near one meter above the ground. Figure 2 shows the antenna configuration for the station. The radio could provide reliable communication (with a stationare radiocenter with special directed antennas and high sensitivity receivers) up to 700- km.

British spy Radio “Paraset” was the nearest analog of the radio “Sever.”

Manual for radio Sever may be loaded: www.antentop.org/014/sever_014.htm

Credit Line: http://www.rkk-museum.ru

Figure 2 Antenna for the Radio “Sever”

Spy Radio “Sever”

 

Credit Line for Pictures: http://rv3bc.narod.ru/Stat/rtx-sever.htm

 

 

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