TUNG-CHING-SHAN ELECTRONIC INTERCEPT SITE CHINA

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78T05161A000300010002-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 11
• Document Creation Date: December 28, 2016
• Document Release Date: February 14, 2003
• Sequence Number: 2
• Publication Date: June 1, 1965
• Content Type: IR

SECRET
Approved For Release 200h/05/05 : CIA-RDP7 T05161A000300010002-4
CENTRAL INTELLIGENCE AGENCY
PHOTOGRAPHIC INTELLIGENCE DIVISION
PHOTOGRAPHIC INTELLIGENCE REPO T
TUNG-CH I NG-SHAN ELECTRONIC INTERCEPT SITE
CHINA
CIA/PIR-1017/65
JUNE 1965
WARNING
This document contains information affecting
the national defense of the United States,
within the meaning of Title 18, sections
793 and 794, of the U.S. Code, as amended.
Its transmission or revelation of its contents
to or receipt by an unauthorized person is
prohibited by law.
Declassification Review by NIMA/DOD
SECRET
Approved For Release - 78T05161A000300010002-
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 SECRET
Approved For Releas 2003/05/05 : CIA-RDP7 T05161A000300010002-4
CIA, PHOTOGRAPHIC INTELLIGENCE DIVISION CIA/PIR-1017/65
The Tung-Ching-Shan Electronic Intercept Site, 25-25-OON 119-37-40E, is
located approximately 5 nm southeast of Kao-Shan-Shih, 25-28-20N 119-33-20E,
and approximately 45 nm south-southeast of Fu-Chou, 26-06-OON 119-17-30E
(Figure 1). The site is situated on the summit of a hill 1368 feet above sea
level, and directly overlooks the Formosa Strait. This site location is unique
in that it is the closest high point on the mainland of China to Taiwan (Figure 2).
The Tung-Ching-Shan Electronic Intercept Site covers approximately 2 acres,
and contains approximately 50 various antennas, numerous antenna sections and
various on-site facilities. Detailed photographic analysis of photography,
reveals the antennas at this site
consist of Discone Antennas, Mattress Antennas, 8 Parabolic Mesh Dish
Reflectors, 7 VHF Horizontal Double Rhombic Antennas, (including one still under
construction), ,5 Yagi Antennas, 5 possible Stick Masts, 4 Parabolic Solid Dish
Reflectors, (including one with bulbous feed), and 4 unidentified antennas.
There are also at least 5 mattress-type antenna sections leaning on or against
structures through-out the site and one possible antenna assembly area contain-
ing construction materials.
On-site structures include 8 buildings, (one under construction), 4 antenna
shielding walls, 3 excavations, (possibly underground entrances), 2 unidentified
cylinderical objects, and a storage shed. The lack of security at this site,
the presence of construction materials, the partially assembled antenna sections,
and the apparent recent change in antenna arrangement and orientation indicate
that this site is not yet complete and is currently under-going extension or
modification (Figures 3, 4 and 5).
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IThe approximate orientation azimuths of the directional antennas
indicate the major elint intercept effort to be within azimuths of 25X1
Degrees. This sector, when projected across the Formosa Strait, indicates the
passive elint intercept to be directed against north-western Taiwan with primary
emphasis in the area of T'ai-Chung and Hsin-Chu. (Tables 1 and 2). The presence
of Discone antennas at the Tung-Ching-Shan Electronic Intercept Site indicate
a probable Chicom attempt at intercept of Chinat Air-to-Ground communications.
Analysis of previous photography, of this site, revealed some of the antennas
observed were constructed between However, 25X1
obliquity and or poor quality precluded detailed photographic interpretation.
Approved For Release - 78T05161A000300010002-4
 SECRET
Approved For Release 2 0- 310 510 5- - GI A -Rl;)P 8T05161 A000300010002-4 25X1
CIA, PHOTOGRAPHIC INTELLIGENCE DIVISION CIA/PIR-l0l7/65
All measurements have been made by the NPIC Technical Intelligence Division,
with the exception of approximate antenna orientation azimuths and newly observed
or changed antenna arrangements which were made by the CIA/PID project analyst.
They should be considered as approximate and must not be taken as official NPIC
mensuration. The NPIC/TID measurements are considered to be accurate within
plus or minus whichever is greater. The
approximate antenna orientation azimuths, as computed by the project analyst
may be considered to be accurate within plus or minus 5 Degrees.
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ACIC ONC H-12 2nd Classified ed, Nov 61, scale 1:1,000,000 (CONFIDENTIAL)
USATC 0499-16HL Series 200, 2nd ed, Feb 64, scale 1:200,000(SECRET)
USATC 0499-17HL Series 200, 1st ed, Dec 61, scale 1:200,000 (SECRET)
USATC 0499-18HL Series 200, 1st ed, Dec 61, scale 1:200,000 (SECRET)
USATC 0499-22HL Series 200, 1st ed, Jan 62, scale 1:200,000 (SECRET)
PI Report (Cable) No. 0771 (COMUST DC-AFIN 18304) SECRET 25X1
PI Report (Cable) No. 0773 (COMUST DG-AFIN 59170) 25X1
REQUIREMENT
C-S15-82,289
CIA/PID PROJECT
30306-5
Approved For Release ?00WQ6M';:GlA RE) 78T05161A000300010002-4
 International boundary
Internal administrative boundary (Communist,
Internal administrative capital (Communist
Railroad
Road
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zA/PZP-io_L7/6525X1
TUNG-CHING-S E NT INTERCEPT SITE
25-25-OON 119-37-40E
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SECRET
CIA/PIR-101765
TUNG-CLING-SHAH ELINT INTERCEPT SITE
25-25-OON 1.19-37-40E
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 Approved For Release 2003/05/05 : CIA-RDP78TO5161A000300010002-4
SECRET
CIA/PIR-1017/625X1
TUNG-CHING-SHAN ELINT INTERCEPT SITE
25-25-OON 119-37-40E
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Approve or Release
TUNG - CHING - SHAN ELECTRONIC INTERCEPT SITE, CHINA
25 25 00
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 Approved For Release,2003/05iA-RDP78T05161A000300010002-4 CIA/PIR-1017/65
MATTRESS ANTENNAS AND PARABOLIC DISH REFLECTORS KEYED TO FIGURE 5.
vattress Antenna Number
8
9
10
11
12
13
14
15
arabolic Mesh Dish
,Reflector Number
Diameter ? 10 percent
Orientation ? 50
16
10
17
15
18
15
19
15
20
15
21
15
22
15
23
15
arabolic Solid Dish
Reflector Number
Diameter 10 percent
Orientation ? 5?
24
25
26
27
Length ? 10 percent (Feet)
Orientation ? 5? (Degrees)
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