MISSION C257C, RADAR AND COASTAL DEFENSE SITES NAN-CHIU SHAN, CHINA

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP79-00849A001000030011-8
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 6
• Document Creation Date: December 28, 2016
• Document Release Date: March 9, 2006
• Sequence Number: 11
• Publication Date: August 18, 1967
• Content Type: REPORT

~/16 : CI4ePPSHRi AOO1 00003001 1-8
(c) NATIONAL PHOTOGRAPHIC INTERPRETATION CENTER
Attachment to NPIC L-3803(867)
25X1
1 Augus
Page 11
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D
A RADAR SITE IS LOCATED ON THE SOUTHERN END
OF THE ISLAND AT 29-25-10N 122-10=55E.
A PROBABLE RADAR SITE IS LOCATED IN THE
SOUTH CENTRAL SECTION OF THE ISLAND AT
29-25-10N 122-26-25E.
RADAR AND COASTAL DEFENSE SITES
NAN-CHHIU SHANE CHINA
FIRST IDENTIFICATION OF A PROBABLE CROSS
LEGS RADAR iND 2 ADDITIONAL COASTAL
DEFENSE SITES AT NAN-CHIU SHAN (ISLAND).
NAN-CHIU SHAN IS LOCATED IN THE EAST CHINA
SEA APPROXIMATELY 20 NM EAST OF THE MAIN-
LAND AT 2925N 12211E.
These notes have been prepared for briefing purposes only and should not be used for detailed analytical work. Their use
should be restricted to the particular briefing board(s) they were prepared for and must be considered valid only for the re-
porting period as indicated by the date of issue. For information concerning these notes contact Chief, Collateral Support
Division, NPIC
Approved For Release /16 : CIA-RDP79-00849AO 1000030011-8
GROUP i
I. MPrR n/M.I... ri n.
TOP SECRET
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nt to NPIC L-3803(8/67)
(c) NATIONAL PHOTOGRAPHIC INTERPRETATION CENTER Page -2
B. NORTHERN END OF ISLAND AT 29-26-03N
122-13-OOE.
C. NORTHWESTERN END OF ISLAND AT 29-26-25N
122-11-4OE .
D. EASTERN END OF ISLAND AT 29-25-35N
122-12-03E.
CROSS LEGS RADAR IS AN EARLY WARNING RADAR
OPERATING IN THE L-BAND IMMEDIATELY BELOW
1300 MEGAHERTZ. ALTHOUGH THE PRIMARY
FUNCTION OF THIS RADAR IS EARLY WARNING IT
COULD POSSIBLY BE USED FOR GROUND CONTROLLED
INTERCEPT. ESTIMATES OF THE CAPABILITY OF
CROSS LEGS INDICATE THAT IN THE EARLY WARNING
ROLE THE MAXIMUM UNAMBIGUOUS RANGE IS 400 NM
WHILE OPERATING IN THE LOWER PRF (PULSE
REPETITION FREQUENCY) MODE, AND 130 NM WHILE
OPERATING AT THE HIGHER PRF.
MOON FACE RADAR, IS A CHICOM VARIANT OF THE
US WORLD WAR II VINTAGE SCR-270 DA EARLY
WARNING RADAR. MOON FACE SIGNALS WERE
FORMERLY IDENTIFIED BY THE INDICATOR BE 04.
These notes have been prepared for briefing purposes only and should not be used for detailed analytical work. Their use
should be restricted to the particular briefing board(s) they were prepared for and must be considered valid only for the re-
porting period as indicated by the date of issue. For information concerning these notes contact Chief, Collateral Support
TOP SECRET
 25X1
to NPIC L-3803(8/67)
18 August
Page 3
(C) NA I IONAL PHOTOGRAPHIC IN
oved For Release 2006/03/16: CIA-TWSKeI"
5. FIRST IDENTIFICATION:
6. NEGATION DATE:
7. SUBSEQUENT COVERAGE:
PHYSICALLY, MOON FACE DIFFERS FROM THE
SCR-270 DA ONLY IN THAT ITS MATTRESS-TYPE
ANTENNA CONSISTS OF SIX ROWS OF EIGHT DIPOLES,
RATHER THAN THE NORMAL FOUR ROWS OF EIGHT
DIPOLES.
8. DIMENSIONS/SPECIFICATIONS: NONE
RADAR SITES ARE LOCATED ON NAN-CHIU SHAN. THE COASTAL DEFENSE SITE
LOCATED ON THE SOUTHEASTERN END OF THE ISLAND AT 29-25-09N 122-11-24E
CONSISTS OF 5 POSITIONS (3 WITH CAVE ENTRANCES) AND 3 SUPPORT BUILDINGS.
THE COASTAL DEFENSE SITE LOCATED ON THE NORTHERN END OF THE ISLAND AT
These notes have been prepared for briefing purposes only and should not be used for detailed analytical work. Their use
should be restricted to the particular briefing board(s) they were prepared for and must be considered valid only for the re
porting period as indicated by the date of issue. For information concerning these notes contact Chief, Collateral Support
Division, NPIC.
Approved Fo 1000030011-8
 loved For Release 2006/01/16 : CIAAM692 001000030011-8 to NPIC L-3803(8/6
(c) NATIONAL PHOTOGRAPHIC INTERPRETATION CENTER 18 August 1967
Page 4
29-26-03N 123-13-OOE CONSISTS OF 4 POSITIONS (2 OCCUPIED) EACH WITH A
CAVE ENTRANCE AND 13 SUPPORT BUILDINGS. THE COASTAL DEFENSE SITE
LOCATED ON THE NORTHWESTERN SIDE OF THE ISLAND AT 29-26-25N 122-11-40E
CONSISTS OF 4 POSITIONS EACH WITH A CAVE ENTRANCE AT THE REAR. THE
COASTAL DEFENSE SITE LOCATED ON THE EASTERN SIDE OF THE ISLAND AT
29-25-35N 122-12-03E, CONSISTS OF 2 OCCUPIED POSITIONS.
THE RADAR SITE LOCATED ON THE SOUTHERN END OF THE ISLAND AT
29-25-10N 122-10-55E CONSISTS OF ONE MOON FACE RADAR AND ONE CONTROL/
SUPPORT BUILDING. THE PROBABLE RADAR SITE LOCATED IN THE SOUTH CENTRAL
SECTION OF THE ISLAND AT 29-25-10N 122-26-25E CONSISTS OF ONE PROBABLE
CROSS LEGS RADAR AND ONE CONTROL/SUPPORT BUILDING. NUMEROUS CAVE ENTRANCES
ARE LOCATED ALONG THE WESTERN EDGE OF THE ISLAND. NO MISSILES OR MISSILE -
RELATED ACTIVITY IS OBSERVED,
OB: 4 FA PIECES.
These notes have been prepared for briefing purposes only and should not be used for detailed analytical work. Their use
should be restricted to the particular briefing board(s) they were prepared for and must be considered valid only for the re-
porting period as indicated by the date of issue. For information concerning these notes contact Chief, Collateral Support
Division, NPIC.
Approved For Release 2006/03/16 : CIA-RDP79-00849A0 1000030011-8
TOP SECRET
 NATPoNAL Pl TNBNAPRIC INTERPRLTATmN CTIRTA
RADAR
I~IAAN~DCOASTAL DEFENSE SITES
Approved For Release 2006/03/16 : CIARDPc~T9 Vb4WH00 6#1-8
29-25N 122-11E
OCCUPIED CD POSITION
UNOCCUPIED CD POSITION