a penn Pennemntinigcicane ei nar dacs masa nay Sener -S1-H ———. —-—— Approved For Releasé 2007/03/26 : CIA-RDP96-0 787R000500130083-4 wn | | CPYRGHT OFFICIAL USE ONLY FRIS 68 Egg LOCATION 111120 & —] meena ener nanan ae USSR semcanre aegis ER EAE IONE SO Be erent ee pee ence eee nen ere camera emcee home se enema - on wear pROITCT MAPPING ELECTRIC CONDUCTIVITY OF THE SOILS 88 EAR eR OeD BY THE rSTITUTE OF TERRESTRIAL MAGNETISM, ear ARIE PF | “E_TRDTO WAVES, OF THE SOVIET ACADEMY seeenres, THE MAP OF ELECTRICAL PROPERTIES ie SOL ve Se TS CONDUCTIVITY TO A DEPTH OF 11 TO 15 METERS, WILL ME ee NE THE ABSORPTION OF RADIO WAVES, IS BCT {GNOSPHERE AND PROPAGAT LON oe TERMI NE DEGREE OF THE EARTH'S ABSORPTION | > WAV Te RUD IBILITY OF RADIO TRANSMISSIONS, THE ZONES: OF DISTORTION, THe THE BEST LOCATIONS FOR TRANSMITTING AERIALS. Tle fer cee, Ae PTR MAVIGATORS TO CORRECT REAOINGS OF AUTOUAT TS se BUILDING Ol AND GAS PIPELINES AND 18 LAYING UNDERGROUND yb MPILENG THE NG_ ME TH PORTA IopanhTuS EVOLVED "AT THE INSTI TUTE Te ey a eact 1S, BEING BADE "ACCORDING TO THE PRINCIPLE OF CON . YEN SPOT Meee ee ROUTE PRINCIPLE WHICH APPROXIMATES COMDUCTINITS |. a2) AND EEN TwO POINTS. (MOSCOW, TASS, ENGLISH, JAN» ©, 170M, 0 eee Lal oe eer Ene bee prune pooe nee ceaey ewe en wpetmerte pe cope | COUNTRY - , Ps AF CHART | ACTIVITY CODES . Ue USES BR P22 — 2603 eae DATE/SOURCE , DA Mo va | DA mo CPYRGHT : a vr S fh, va s > < 2 Shurce AIO ESE (EMA ye | -|-. The Institute of Terrestrial Magnetism, the Ionosphere and Wave Propagabion, Academy of-Sciéncees USSR, has” | designed a spectrum analyzer for determining the in- stantaneous frequency of variable atmospheric inter- ' ference signals with 'an average frequency variation - . patio of about 2:10 c/sec-sec, The signals are re- | _ corded on a tape recorder and transcribed on a tape ‘ : loop (full time of rotation, 1.5-2.75 sec). Change of} - frequency with time can be observed visually by an o8~ - -otlloscope. The raster has 50 lines with each tenth line brightened for better reading. The analyzer has | - four frequency ranges (0-4, 0-12, 0-6, and 0-20 ke). | A block diagram of the’analyzer circuit and signal ~ spectrograms.are given. (Likhter, Ya.I., S.M.:Prozumen, shchikov., and Ya.P. Sobolev. Pribory i tekhnika ek- | ' L_-sperimenta, no. 1, Jan 1961, 96-99) $/120/61/000/001 BBIYRR September 1960 marked the 10th anniversary of the Irkutsk laboratory of time and frequencies of the all-union institute of physico-technical and radlo-technical measurements. The laboratory's rather smali collective determines local time by measurement of moving heavenly bodies, transmits exact time gignals, and controls © transmission of such signals by domestic and foreign radio stations. The volume of scientific research performed by the laboratory has expanded considerably in a comparatively short time. The laboratory has been augmented by new, more modern equizment which permits scientific work with extreme accuracy. This year, for | exanple, new apparatus is being used to transmit signals with a deviation from absolute accuracy of only .0002 (two ten-thousandths) of a second. To obtain these results, the equipment had to be improved locally, which was done by a group under Perkhokutskiy, senior scientific worker of the laboratory. This: laboratory was the first in the USSR to begin use of the Danjon prismatic astrolabe, a device for astronomic measuring of ephemerides. Instruments have been converted for semi-automatic and individual observations, and much other work has been done. (Text) (Irkutsk, Russian, Sept. 29, 1960, 1100 GM) ~ THE KNOWLEDGE OF THE CONDUCTIVITY OF SOIL 1S | MPOR TANT ne oe <M TEP ETE “oe EVAL 22 DEC 1960 ussk CPYRGHT OFFICIAL USE ONLY | mas 60 #6972 (728 | 3
SG1C Approved For Release 2001/03/26 : CIA-RDP96-00787R000500130083-4 Approved For Release 2001/03/26 : CIA-RDP96-00787R000500130083-4