SPECTRUM PLANNING, INC. ANTENNA HEIGHT ANALYSIS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP88-01418R000200130009-9
• Release Decision: RIFPUB
• Original Classification: K
• Document Page Count: 4
• Document Creation Date: December 22, 2016
• Document Release Date: May 31, 2011
• Sequence Number: 9
• Publication Date: January 8, 1987
• Content Type: MISC

Approved For Release 2011/05/31: CIA-RDP88-01418R000200130009-9
SPECTRUM PLANNING, I Nc .
ANTENNA HEIGHT ANALYSIS
8 JAN 1987
PAGE
1
SITE A
SITE 8
Dist
25.448 miles
Site name HOPEWELL GAP
TYGONS CORNE
Freq
6.173 GHx
Latitude 38-52-20.00 38-55-13.00
Clearance 1)
1.OQ F @ K = 1?3?:a
Longitude 77-41-53.00 77-13-48.0
0
2)
.30 F @ K .667
Elev (ft) 1160.00 520.00
Existed 7 no no
Fixed ht (ft)
M
ft
t ht
150
00
ax an
)
(
.
Min ant ht (ft) 10.00
Increment (ft-) 5.00
150.00
10.00
5.00
Protile input points (Ground elevations(AMSL) in ft,
Obstruction heighte(AGL) in ft)
Dist
God
Obht
Dist God
Obht
Dlit
God
0bht
Dist
God
Obht
(ii)
(ft)
(ft)
(ii) (ft)
(ft)
(11)
(ft)
(ft)
(ii)
(ft)
(ft)
.01
1160.
35.0
6.28 300.
0.0
13.87
300.
0.0
21.20
350.
0.0
.35
700.
0,0
6.32 340.
0.0
14.20
310,
0.0
21,50
376.
0.0
.50
610.
0.0
1.55 280.
0.0
14.70
340.
0.0
22.30
300.
0.0
.59
685.
0.0
7.90 220.
0.0
15.00
350.
0.0
23.50
400.
0.0
1.15
550.
0.0
9.45 320.
0.0
15.65
370.
0.0
24.30
400?
0.0
1.90
460.
0.0
8.70 340.
0.0
16.39
390.
0.0
24.50
426.
0.0
2.65
440.
0.0
9.60 280.
0.0
16.90
400.
0.0
24.87
480?
50.0
3.20
10.
n.n
10.20 260.
0.0
17.50
440.
50.0
25-03
450.
0.0
3.35
400.
0.0
10.77 270.
0.0
18.01
350.
0.0
25.41
510.
50.0
4.32
420.
0.0
12.05 300.
0.0
19.00
350.
0.0
5.58
300.
0.0
12.65 250.
0.0
19.81
330.
0.0
5.65
340.
0.0
13.30 260.
0.0
20.40
3S0.
0.0
Control pt no
1
2
3
4
5
6
7
8
Dist from A (mi)
?01
17.50
23.50
24.30
24.50
24.97
25.03
25.41
Dist from B (mi)
25.44
7.95
1.95
1.15
.95
.58
.42
.04
Ord elev (tt)
1160.00
440.00
400.00
400.00
426.00
480.00
450.00
510.00
Above grd ht (ft)
35.00
50.00
0.00
0.00
0.00
50.00
0.00
50.00
Bulge @ K=1.333 (tt)
.13
69.55
22.89
13.95
11.62
7.19
5.24
.49
1.0 Fresnel (ft)
2.90
67.84
38.92
30.39
27.73
21.82
19.61
5.68
Pu1ge @ I(= .667 (ft)
.25
139.10
45.79
27.90
23.23
14.38
10.47
.97
.3 Fresnel (ft)
.07
20.35
11.68
9.12
8.32
6.54
5.58
1.70
Approved For Release 2011/05/31: CIA-RDP88-01418R000200130009-9
 Approved For Release 2011/05/31: CIA-RDP88-01418R000200130009-9
SPECTRUM PLANNING, INc.
ANTENNA HEIGHT ANALYSIS
8 JAN 1987
PAGE 2
Center frequency 6.173 GHz Clearance criteria 1) 1.000 F at K 1.333
2) .300 F at K = .667
Site 1 S_ ate 2
Si Le rlaime HOPEWELL GAP 1'YUUNS C0 NE
Latitude 38-52-20.00 38-55-1 .00
Longitude 77-41-53.00 77-13.48.00
Elevation (tt) 1160.00 520.00
Varying antenna height of site 1
Site 1 Site 2
Height (ft) FN Height (ft)
40.00 8 45.21
45.00 9 45.20
50.00 8 45.19
55.00 8 45.19
60.00 8 45.18
65.00 8 45.17
70.00 8 45.16
75.00 8 45.16
0.00 8 45.15
85.00 5 45.14
90.00 9 45.13
95.00 8 45.13
i 00.00 0 45.12
105.00 8 45.11
110.00 8 45.10
115.00 8 45.10
120.00 8 45.09
12`.00 8 45.08
130.00 8 45.07
135.00 8 45.07
140.00 8 45.96
145.00 8 45.05
I50.00 8 45.04
Approved For Release 2011/05/31: CIA-RDP88-01418R000200130009-9
 Approved For Release 2011/05/31: CIA-RDP88-01418R000200130009-9
SPECTRUM PLANNING 9 INC.
ANTENNA HEIGHT ANALYSIS
8 JAN 1987
PAGE 3
Center frequency 6.173 GHz, Clearance criteria 1) 1.000 F at K = 1.333
2) .100 F At K iA67
Site 1 Site 2
Site name HI]PEWELL GAP TYSONS CORNE
Latitude 38-52-20.00 38-55-13.00
Longitude 77-41-53.00 77-13-48.00
Elevation (ft) 1160.00 520.00
Varying antenna height of site 2
Site 1 Site 2
Height (ft) FN Height (ft)
178.17
8
45.00
18.28
1
50.00
.38.27
1
55.00
38.27
1
60.00
38.27
1
65.00
38.27
1
70.00
3$.27
1
75.00
38.2
1
80.00
30.26'
1
85.00
38.26
`1
90.00
33.26
1
95.00
38.2E
1
100:00
18.25
1
105.00
38.25
1
110.00
38.25
1
115.00
38.25
1
120.00
38.'-1
1
125.00
N-24
1
130.00
38.24
1
135.00
38.24
1
140.00
38.24
1
145.00
38.24
1
150.00
Approved For Release 2011/05/31: CIA-RDP88-01418R000200130009-9
 Approved For Release 2011/05/31: CIA-RDP88-01418R000200130009-9
HOPEWELL GAP
Lot 38-52-26.06
Lon 77-41-53.80
fIev 1160.00 fI.
1bit ht s0.N a
PATH PROFJLE
HOPEWELL GAP TO TYSONS CORME
4.0 8.0 12.0 16.0
Path dial 25.45 .I Iee Center rreq 6.173 GKz
K = .667, .380 F
X = 1.333, 1.300 F
SPECTRUM PLANNING, INC.
20.0 24.0 25.45 28.0
7YSONS CORNE I~"i lea}
Lot 38-55-13.00
Lan 77-13-48.00
Elev 528.00 (1.
Ant hi. 190.00 f t.
S JAN 1987
Approved For Release 2011/05/31: CIA-RDP88-01418R000200130009-9