CIA-RDP96-00787R000500130083-4

1117206
7
31-MAR-1960
FBIS 68 EØØ9
Approved For Release 2001/03/26 : CIA-RDP96-00787R000500130083-4
CPYRGHT
USSR
MR
A 3 YEAR PROJECT MAPPING ELECTRIC CONDUCTIVITY OF THE SOILS
IS BEING PREPARED BY THE INSTITUTE OF TERRESTRIAL MAGNETISM,
IONOSPHERE AND PROPAGATION OF RADIO WAVES OF THE SOVIET ACADEMY
OF SCIENCES. THE MAP OF ELECTRICAL PROPERTIES OF THE SOIL.
INCLUDING ITS CONDUCTIVITY TO A DEPTH OF 11 TO 15 METERS, WILL
DETERMINE THE DEGREE OF THE EARTH'S ABSORPTION OF RADIO WAVES,
THE AUDIBILITY OF RADIO TRANSMISSIONS, THE ZONES OF DISTORTION,
AND THE BEST LOCATIONS FOR TRANSMITTING AERIALS. THE MAP WILL
HELP AIR NAVIGATORS TO CORRECT READINGS OF AUTOMATIC EQUIPMENT
DURING FLIGHT, THE KNOWLEDGE OF THE CONDUCTIVITY OF SOIL IS IMPORTANT
IN BUILDING OIL AND GAS PIPELINES AND IN LAYING UNDERGROUND
CABLES. RADIO HAMS, WORKERS, AND STUDENTS HAVE BEEN INVITED.
TO HELP IN COMPILING THE MAP BY TAKING MEASUREMENTS WITH PORTABLE
APPARATUS EVOLVED AT THE INSTITUTE. THE SOVIET MAP IS BEING MADE
ACCORDING TO THE PRINCIPLE OF CONDUCTIVITY AT EACH GIVEN SPOT
AND NOT THE ROUTE PRINCIPLE WHICH APPROXIMATES CONDUCTIVITY
BETWEEN TWO POINTS, (MOSCOW, TASS, ENGLISH, JAN. 6. 1960, 1415 GMT)
CODE |COUNTRY
491
USSR
PS
723
AF CHART
ACTIVITY CODES
403
LOCATION
MOSKVA
S/T
NAME OF INSTALLATION
PL. NO.
DATE/ INFO
DATE/SOURCE
PF
DA
MO
YR
DA
MO
YR
CONTROL NO.
SOURCE
A ID # 458
EVAL
SOURCE: AID #458 18MAY6 1
The Institute of Terrestrial Magnetism, the Ionosphere
and Wave Propagation, Academy of Sciences USSR, has
designed a spectrum analyzer for determining the in-
stantaneous frequency of variable atmospheric inter-
ference signals with an average frequency variation
ratio of about 2:104 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 os-
cilloscope. 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 kc).
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-
sperimenta, no. 1, Jan 1961, 96-99) s/120/61/000/001
2216422
11/491
WJR
22 DEC 1960
USSR
CPYRGHT
OFFICIAL USE ONLY
FBIS 60 H 6972
438
September 1960 marked the 10th anniversary of the Irkutsk laboratory of time
and frequencies of the all-union institute of physico-technical and radio-technical
measurements. The laboratory's rather small collective determines local time by
measurement of moving heavenly bodies, transmits exact time signals, 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
equipment which permits scientific work with extreme accuracy. This year, for
example, 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 GMT)
Approved For Release 2001/03/26 . CIA-RDP96-00787R000500130083-4
CPYRGHT
JAN6 / 18 MAY 61
OFFICIAL USE ONLY

SG1C
Approved For Release 2001/03/26 : CIA-RDP96-00787R000500130083-4
Approved For Release 2001/03/26 : CIA-RDP96-00787R000500130083-4