POSSIBLE VLF-DF ARRAYS AT SOVIET KRUG COMMUNICATIONS SUPPORT FACILITIES, USSR

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78T05162A000400010037-7
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 6
• Document Creation Date: December 28, 2016
• Document Release Date: July 14, 2011
• Sequence Number: 37
• Publication Date: August 1, 1974
• Content Type: REPORT

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NATIONAL PHOTOGRAPHIC
INTERPRETATION CENTER
PHOTOGRAPHIC
INTERPRETATION
REPORT
POSSIBLE VLF-DF ARRAYS AT
SOVIET KRUG COMMUNICATIONS
SUPPORT FACILITIES, USSR
AUGUST 1974
COPY NO. 122
3 PAGES
PIR-052/74
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 Arrays at Soviet KRUG Communications Support Facilities
GEOGRAPHIC COORDINATES
See below
E NO.
ee below
COMIREX NO.
See below
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ACIC. USATC, Series 200, scale 1:200,000
Facility
Beringovskiy Radcom Rcvr Sta
KRUG Spt
Sergeyevka Radcom Rcvr Sta
KRUG 2 Spt
Odessa Radcom Rcvr Sta KRUG
1 Spt
Geographic
Coordinates
63-03-30N 179-08-50E
48-26-47N 135-22-30E
46-26-33N 030-29-59E
Vorkuta Radcom Rcvr Sta KRUG 67-37-49N 064-07-18E
Spt
1. This report describes arrays possibly used for very-low-frequency direction-finding which
have been observed at four Soviet KRUG radio communications receiving support stations.
2. The report contains a listing of the four facilities, an annotated photograph of each array,
a location map, and a table of mensural data on each antenna array.
BLACK"
SEA
N P-86
FFI AN
;N LAND,*
Kazan .\
Volga Perm /y \
Volgograd
Sverdlovsk
~Kyshtym ~~~~
T yuratam
Sary-Shagan
? Luke
Bolkhash
Omsk / ; omsk
Gladkay
CHINA ~??~
Chita
NGOLIA
A/ adyr 780
SEA
OF
OKHOTSK
SERGEYEV A,
hab r vsk
: VIA ivostok
NORTH
SEA
GERM4N~
Ash
?Je C is~
FIGURE 1. LOCATIONS OF POSSIBLE VLF-DF ARRAYS AT SOVIET KRUG COMMUNICATIONS SUPPORT
FACILITIES
TnP C.F(RFT MIFF
NIETB NO.
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25X1
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TOP SECRET RUFF
3. An array possibly used for very-low-frequency direction-finding (VLF-DF) has been
identified at four Soviet KRUG radio communications receiving support stations (Figure 1).
4. The array is similar in configuration and size to the Canadian CROSSED LOOPS array
which has been used for VLF-DF.
5. Each array consists of four short masts (items A - D, Figures 2 - 5) in a square configuration
with a taller mast (item E) in the center. The antenna elements appear to extend from the top
of the tall mast down to the top of each of the four shorter masts. There are two unidentified
objects on the central tall mast which appear to be circular and are
Table 1, which is keyed to Figures 2 through 5, provides mensuration
of the four arrays.
6. The array is adjacent to the control building at each of the four facilities. The configuration
of the array appears to be the same at each of the four facilities except Odessa, where only three
of the shorter masts could be identified.
25X1
25X1
MAPS OR CHARTS
ACIC. Various US Air Target Charts, Series 200, scale 1:200,000
REQUIREMENT
Project 340100
TOP SECRET RUFF
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TOP SECRET
TOP SECRET
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