ITU Workshop on Satellite Communications
The ITU : Challenges in the 21st. Century
Preventing Harmful Interference to Satellite Systems
Statistics on Cases of Harmful
Interference Reported to BR
Geneva,10 June 2013
BR / SSD / SNP
1
Introductory Remarks:

This presentation is given in response to requests
from participants during today’s morning session
of this workshop.

Statistics are based on Information and
Statements provided by Notifying Administrations
to the Bureau

One Case of Harmful Interference Reported to BR
may involve several short or long time
occurrences.
2
BR Director’s Report to RRB
Period
01.2012
02.2012
03.2012
04.2012
05.2012
06.2012
07.2012
08.2012
09.2012
10.2012
11.2012
12.2012
01.2013
02.2013
03.2013
04.2013
For BR
No. Of
Adms.
information
Cases involved
(RR15.41)
10
3
5
2
3
3
3
4
2
9
2
1
7
4
0
1
9
5
8
4
5
5
5
6
1
7
3
2
8
5
0
2
5
1
2
1
1
1
2
2
0
7
2
1
5
2
0
0
For BR
action/Re
quest for
assistance
For RRB
consideration
(RR15.42)
RR13.3)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
2
3
1
2
2
1
2
2
2
0
0
2
2
0
1
RRB
Consideration
(RR13.2/
BR Info
Request for
Assistance to
BR
3
Latest Statistics on Interference
Cases of Harmful Interference reported to ITU/BR
1Q 2011 – 1Q2013
(1Q20Q 2011 to 1Q 2013 1Q 2011 to 1Q 2013 1Q
Affected Services:
2011 to 1Q 2013 1Q 2011 to 1Q 2013
FSS, BSS, MSS, EESS, RNSS
18
16
Affected Freq. Bands:
14
12
4
1.2
1.5 / 1.6
2.2
3/4, 5/6
10-14
GHz
GHz
GHz
GHz
GHz
2
17/18
GHz
10
8
6
0
1Q 2011 2Q 2011
3Q 2011
4Q 2011
1Q 2012
2Q 2012
3Q 2012
4Q 2012
1Q2013
4
Nature of Interference
2012
Technical
7%
Regulatory
0%
Unnecessary
Transmission
55%
1Q 2013
Unauthorized
Use
17%
No
Coordination
21%
Regulatory
0%
Unauthorized
Use
27%
Technical
9%
Unnecessary
Transmission
37%
No
Coordination
27%
5
-180
-172
-164
-156
-148
-140
-132
-124
-116
-108
-100
-92
-84
-76
-68
-60
-52
-44
-36
-28
-20
-12
-4
4
12
20
28
36
44
52
60
68
76
84
92
100
108
116
124
132
140
148
156
164
172
180
-180
-172
-164
-156
-148
-140
-132
-124
-116
-108
-100
-92
-84
-76
-68
-60
-52
-44
-36
-28
-20
-12
-4
4
12
20
28
36
44
52
60
68
76
84
92
100
108
116
124
132
140
148
156
164
172
180
-180
-172
-164
-156
-148
-140
-132
-124
-116
-108
-100
-92
-84
-76
-68
-60
-52
-44
-36
-28
-20
-12
-4
4
12
20
28
36
44
52
60
68
76
84
92
100
108
116
124
132
140
148
156
164
172
180
Distribution along GSO
10
20
2011
5
0
2012
15
10
5
0
1Q 2013
4
3
2
1
0
6
Breakdown by Satellite Network / Orbital Position
Notifying Administration
2
ARS
ARS/ARB CHN
D EGY
13
21.5
F/EUT
25.5
7
KOR QAT
140
88
42
RUS
SNG
TUR
44
(blank)
YAHSAT-1A
EMARSAT-1G
EMARSAT-1F, EMARSAT-1F/M, EMARSAT-4F,…
TURKSAT
ST-1A, ST-1A-CK
ST-1A
EXPRESSS-10…
EXPRESS-AM3
26 NGSO 26
EXPRESS-10/10B
(blank)
13
IRN
(blank)
EUTELSAT-B1-7E…
EUTELSAT B1-7E
EUTELSAT 3-25E
EUTELSAT 3-25.5E
EUTELSAT 3-21.5E
10
EUTELSAT3-13E
26 140 51.5NGSO -7
EUTELSAT EXB-13E
26
EUTELSAT B-13E
0
EUTELSAT3-13E…
1
ZOHREH-2
3
3
2
1
3
(blank)
EMARSAT-1F, EMARSAT-1F/M, EMARSAT-4F,
EMARSAT-7F
52.5
EMARSAT-1G
YAHSAT-1A
4
EUTELSAT 3-13E
1
2
2
1
1
1
1
1
6
3
5
EUTELSAT 3-10E
EXPRESSS-10
EXPRESS-10B
SNG
88
ST-1A
ST-1A, ST-1A-CK
TUR
42
TURKSAT
UAE
44
6
NILESAT-102
1
9
8
8
1
1
1
1
1
1
1
1
3
3
1
1
7
GRACE
EUTELSAT-B1-7E
EUTELSAT EXB-7E
IRN
13
(blank)
26
ZOHREH-2
KOR
NGSO
(blank)
QAT
26
(blank)
RUS
140
EXPRESS-10/10B
EXPRESS-AM3
8
CHINASAT-51.5E
2
2
2
7
5
2
2
1
9
CHINASAT-32
EUTELSAT3-13E
EUTELSAT B-13E
21.5
EUTELSAT 3-21.5E
25.5
EUTELSAT 3-25.5E
EUTELSAT 3-25E
7
EUTELSAT B1-7E
Total
(blank)
3
3
3
3
3
3
2
1
1
1
1
1
1
1
1
1
1
24
1
1
12
1
6
2
1
(blank)
ARS
26
(blank)
ARS/ARB
26
(blank)
CHN
140
CHINASAT-32
51.5
CHINASAT-51.5E
D
NGSO
GRACE
EGY
-7
NILESAT-102
F/EUT
10
EUTELSAT 3-10E
13
EUTELSAT 3-13E
EUTELSAT B-13E
EUTELSAT EXB-13E
EUTELSAT3-13E
52.5 (blank)
UAE
7
(blank)
Interference to NGSO networks
2011
 2 Cases of Interference associated to NGSO
 1 of them impacting Earth Station operating
TT&C
2012
 2 NGSO networks were impacted:
 Earth Exploration Satellite Service (EESS)
 Mobile and land earth stations receivers in
the Radio Navigation Satellite Service (RNSS)
2013
 Nothing reported up to date
8
Thank You !