Daryal radar The Daryal - type radar ( ) ( NATO : Pechora ) is a Soviet bistatic phased - array early warning radar . It consists of two separate large active phased - array antennas separated by around to . The transmitter array is 30x40 m ( 98x131 ft ) and the receiver is 80x80 m ( 262x252 ft ) in size . The system is a VHF system operating at a wavelength of 1 . 5 to 2 meters ( 150 to 200 MHz ) . Its initial transmit capacity was 50 $ 4 with a target capacity of 350 MW . The designer of the radars , RTI Mints , says that each Daryal receiver is 100m x 100m and has 4 , 000 cross dipoles . Each transmitter is 40m x 40m with 1 , 260 modules , each capable of 300 kW . They say the radar has a range of 6 , 000 km with targets between 0 . 1 m2 and 0 . 12 m2 . It can track 20 objects at the same time and can cope with four jamming sources . The designer , V Ivantsov , was awarded the title " Hero of Socialist Labour " for his work on the Daryal . The first Daryal type radar was built at Olenegorsk in the early 1970s . It was the receiver building only and was called a Daugava rather than a Daryal . It used the transmitter of the adjacent Dnestr - M radar . Following this , in 1975 , two Daryal radars were constructed in Pechora and Gabala . In 1979 new Daryal - U radars were planned for Balkhash - 9 near Sary Shagan in Kazakhstan , Mishelevka in Irkutsk and Yeniseysk - 15 near Krasnoyarsk in Siberia . Two Daryal - UM systems were to be constructed at in Skrunda , Latvia and Mukachevo , Ukraine . Originally , at least seven Daryal facilities were planned , however , only the first two facilities completed , Pechora and Qabala , were ever operational . The American Clinton administration offered financial assistance in completing the Mishelevka facility in exchange for amending the ABM treaty to allow US deployment of a national missile defense system . The Mukachevo one in the Ukraine was never completed after the fall of the Soviet Union and the Skrunda facility was demolished by a newly independent Latvia , arranged by the US Department of Defence . The Yeniseysk ( Krasnoyarsk ) Daryal - U site caused concern in the west over compliance with the Anti - Ballistic Missile Treaty during its construction in the 1980s . Article VI ( b ) requires radars to be on the periphery of national territory and to face outwards and the Yeniseysk radar faced over Siberia . Following negotiations , in September 1989 the Soviets admitted it was a violation of the treaty , construction ceased and the facility was eventually dismantled . Variants . The prototype Daryal receiver is called a Daugava ( 5U83 ) and works with a Dnestr - M transmitter . It is half the size of the Daryal receivers but has the same equipment and computer systems . The original Daryal ( 5N79 ) was improved by revisions Daryal - U ( 90N6 ) and Daryal - UM . A Daryal - U had half the transmitters of a Daryal . The Volga radar ( 70M6 ) is a Daryal - like radar operating on a decimeter wavelength ( UHF ) rather than the meter wavelength ( VHF ) of the Daryal . It was originally planned that there would be a number of these to complement the Daryal . The only Volga built is the one at Baranavichy which originally started in 1982 , stopped in the early 1990s , restarted in 1999 and became operational in 2003 .