HSIEN-YANG COMMUNICATIONS SITE, CHINA

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78T05439A000300210057-7
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 8
• Document Creation Date: December 28, 2016
• Document Release Date: July 25, 2003
• Sequence Number: 57
• Publication Date: January 10, 1964
• Content Type: MF

Approved For Release 2003/09/02 : CIA-RDP78TO5439A000300210057-7
Approved For Release 2003/09/02 : CIA-RDP78TO5439A000300210057-7
 25X1 C
M/EB 19/64
10 January 1964
Copy
25X1A
25X1 D
MEMORANDUM FOR: Chief, B2 Division/P01+3, NSA
Chief, CIA/PID (NPIC)
SUBJECT: Hsien-Yang Communications Site, China
REFERENCES: a) Requirement
b) CIA/PID Project
ATTENTION :
FROM:
1. This memorandum is in response to your request dated 22 November
1963 requesting a detailed readout of the Hsien-Yang communications station.
2. The station (see Enclosures 4, 5 and 6) is located approximately
2.5 nautical miles north-northwest of Hsien-Yang, China at 34-23-10N
108-41-45E and consists of an operations and support area. It is single
fenced and covers approximately 315 acres (2,950 by 4,650 feet). The operations
area contains three multi-storied transmitter buildings, two probable antenna-
tuning houses, two unidentified structures and 25 self-supporting lattice
towers each bearing a 45-foot long crossarm (Enclosure 1, items 1. through 7).
The lattice towers support 20 high frequency curtain arrays. The presence of
crossarms indicates that each curtain could have a reflector screen and/or a
beam switching capability. Probable transmission points near the probable
antenna-tuning houses at transmitter buildings 4 and 6, and the direction of
the transmission lines from all three transmitter buildings indicates that
each of the buildings probably serve separate groups of antennas. Each trans-
mitter building has an oval shaped cooling pond with an inner and outer area
ap rox_imately 85 by 30 feet and 125 by 75 feet, respectively. Photography
of reveals that although all ponds contain water only the cooling
pond at transmitter building 5 is completely filled.
Marks on the ground between the towers are probably vertical feed points.
Assuming these feed lines lead to probable end-fed and/or center-fed one-half
wave length dipoles, the curtains could contain a total of 128 bays (one-half
wave length dipoles) with approximate frequencies and azimuths as indicated on
Enclosure 2. Figures for Enclosure 2 are based on measurements given in Enclosure
The support area consists of one administration building, 15 storage/
barrack buildings, a probable securi''-y building, and one unidentified building
(Enclosure 1, items 8 through 18).
DECLASSIFICATION REVIEW BY NIMA / DoD
1'2~ _ 1 15 '( 25X1C I
CROUP 1
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Qeclas;iticalion
 25X1A
25X1 C I
M/EB 19/64
3. The photo analysts on this project arel
who may be contacted on
4. This project is considered to be complete.
Enclosures:
1
- Enclosure 1, Building Tabulation
2
- Enclosure 2, Antenna Summary
3
- Enclosure 3, Tower Data
4
- One line drawing of station
(CIA/PT-D/MEB- P- 26/64)
5
-
One annotated photograph and
one annotated vu-graph
(CIA/PID/MEB- PL 12/64 )
25X1 C
SECRETI
should you have any
 SECRET
Attachment to:
M/EB 19/64
25X1 C
Dimension (feet)
Single story,
flat roofed
Multi- storied,
monitor roofed
Single story,
flat roofed
Multi- storied,
monitor roofed
Single story;
flat roofed
Multi-storied,
monitor roofed
Multi-storied,
monitor roofed
Single story,
flat roofed
Single story,
gable roofed
Single story,
gable roofed
Single story,
gable roofed
Single story,
gable roofed
Multi-storied,
gable roofed
Three single story,
gable roofed
Single story,
gable roofed
Single story,
gable roofed
Six single story,
gable roofed
55 by 25
105 by 40
55 by 25
250 by 50
145 by 45
250 by 50
145 by 105
(overall)
125 by 35
35 by 30
195 by 30
140 by 20
125 by 20
105 by 50
115 by 20
105 by 30
55 by 25
90 by 20
18. Single story, crr^.
gable roofed
Secured, probable antenna-
turing house
Secured, probable antenna-
tunir.g house
Transmitter building
Transmitter building
Transmitter building
Transformer building and
power sub station in
230 by 230 secured. area
Probable administrative
building
Storage/barracks
building
Storage/barracks
building
Storage/barracks
building
Probable barracks
building
Storage/barracks
building
Storage/barracks
building
Storage/barracks
building
Storage/barracks
building
 25X1 C
Attachment to:
M/EB 19/64
Tower
Number
Heights of
Towers (feet)
*Distance Between
Towers (feet)
*Distance Between Feed
Points and/or Towers (feet)
380
75, 85, 60, 85, 75
2
220
335
65, 70, 65, 60, 75
175
175
335
75, 60, 65, 60, 75
295
470
95, 95, 90, 95, 95
365
440
135, 165, 140
365
4)40
140, 165, 135
365
380
8o, 75, 70, 7
0, 85
9
220
10
295
470
95, 95, 90,-9
5, 95
11
365
44o
140, 165,135
12
365
440
140, 165, 135
13
365
440
140, 165, 135
14
365
440
140, 165, 135
15
365
470
90, 110, 70,
110, 90
16
295
17
220
380
85, 70, 70, 70, 85
18
365
440
14o, 165, 135
19
365
44o
11+5, 160, 14o
20
365
490
110
1
, 75,
10, 95
95,
21
295
345
75, 65, 65, 65, 75
22
175
23
175
31+5
70, 70, 60, 75, 70
21-
220
38o
75, 85, 6o, 85, 75
25
220
*Beginning with tower number 1 on line drawing, these measurements run in a clockwise
direction.
25X1 C
 Approved For Release 2003/09/02 : CIA-RDP78TO5439A000300210057-7
Approved For Release 2003/09/02 : CIA-RDP78TO5439A000300210057-7
 25X1 C HIGH FREQUENCY
RADIO STATION,
HSIEN-YANG, CHINA;
34-23N 108-41E
02?: CIA-RDP7
I . P/PIt.
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