KVN
RAS in KOREA
Current status
Final Goals for Freedom
• Challenge and Change
- Domestic and International Activities
(Technical studies and Political Actions)
- Needs for a Good Relationship with
- Government Peoples and Active Services
 Modify International Radio Regulations
 Modify Domestic radio Law
 Registration RA sites
RAFCAP 7th meeting, Tokyo, 5 June, 2010
What can WE do for
Protection & Sharing Activities
• Technical Studies
- Domestic Activities (Korea ITU-R)
- International Activities
: ITU-R (SG7, WP7D), CPM
• Political Activities
- Domestic Activities (Korea WRC-12 WG4)
- International Activities
: WRC (/3-4 year)
: regional meetings(APG, RAFCAP, IUCAF)-/year
RAFCAP 7th meeting, Tokyo, 5 June, 2010
Protection & Sharing Activities
• Major Domestic Activities
Related WP
Related issues
Korea ITU-R SG7
○ Science service
○ ITU-R WP7A, 7B, 7C, 7D<-> WP1A, 3, 4
Korea WRC-07 WG4
○ APG-12, CPM-12, WRC-12
○ WRC-12 Agenda Items 1.6, 11, 12, 16, 24
Other Study Group
In KCC
○ sharing with 57-64 GHz
○ mainly focusing with ~ 25, 75-79 GHz
Korea ITU-R SG1
Korea WRC-07 WG1,2,3
○ other ITU-R issues and WRC-12 issues
RAFCAP 7th meeting, Tokyo, 5 June, 2010
Protection & Sharing Activities
• Major International Activities
Related WP
Related issues
ITU-R Study Groups
○ Questions, Recommendations for RAS
○ ITU-R SG7, WP7D, WP1A
○ June, Oct. 2010/WP7D/Geneva
APG meeting
○ WRC-12 Agenda Items for RAS
○ 3rd meeting/Bangkok, 4th meeting/Hongkong
IUCAF/RAFCAP
meeting
○ 3rd SS, Tokyo, May 31-June 4, 2010
○ 7th meeting, Tokyo, June 5, 2010
RAFCAP 7th meeting, Tokyo, 5 June, 2010
Structure of Korea ITU-R
RAFCAP 7th meeting, Tokyo, 5 June, 2010
(before 2008)
Structure of WRC-12 Korea PG
WRC-12 Preparatory Group
(KCC)
Steering Committee
WG1A
WG2
WG3A
WG4
WG5A
AMS
RNSS
FS, MS
Science
Satellite
WG1B
WG3B
WG5B
Maritime
BS
Satellite
RAFCAP 7th meeting, Tokyo, 5 June, 2010
WG6
Future
Plan
WRC-11 Related Issues
AI
1.6
1.11
1.12
to review No. 5.565 of the Radio Regulations in order to
update the spectrum use by the passive services between
275 GHz and 3,000 GHz, in accordance with Resolution 950
(Rev.WRC-07), and to consider possible procedures for
free-space optical-links, taking into account the results of
ITU-R studies, in accordance with Resolution 955 (WRC-07)
to consider a primary allocation to the space research
service (Earth-to-space) within the band 22.55-23.15 GHz
taking into account the results of ITU-R studies,
in accordance with Resolution 735 (WRC-07)
to protect the primary services in the band 37-38 GHz from
interference resulting from aeronautical mobile service
operations, taking into account the results of ITU-R studies,
in accordance with Resolution 754 (WRC-07)
RAFCAP 7th meeting, Tokyo, 5 June, 2010
WP1A
WP7B
WP7B
WRC-11 Related Issues
1.16
1.24
to consider the needs of passive systems for lightning
detection in the meteorological aids service, including the
possibility of an allocation in the frequency range below
20 kHz, and to take appropriate action, in accordance with
Resolution 671 (WRC-07)
to consider the existing allocation to the meteorologicalsatellite service in the band 7750-7850 MHz with a view to
extending this allocation to the band 7850-7900MHz, limited
to non-geostationary meteorological satellites in the
space-to-Earth direction, in accordance with Resolution 672
(WRC-07)
RAFCAP 7th meeting, Tokyo, 5 June, 2010
WP7C
WP7B
WRC-11 Related Issues
CG : contributing Issues
1.8
to consider the progress of ITU-R studies concerning the
technical and regulatory issues relative to the fixed service
in the bands between 71GHz and 238GHz, taking into
account Resolutions 731(WRC-2000) and 732(WRC-2000)
WG5C
1.13
to consider the results of ITU-R studies in accordance with
Resolution 551 and decide the spectrum usage of the
21.4-22 GHz band and the associated feeder-link bands in
Regions 1 and 3(planning methodologies, coordination
procedures or other procedures)
WG4A
RAFCAP 7th meeting, Tokyo, 5 June, 2010
본원(대덕연구단지)
RAFCAP 7th meeting, Tokyo, 5 June, 2010
RAFCAP 7th meeting, Tokyo, 5 June, 2010
국내 전파망원경 현황
RAFCAP 7th meeting, Tokyo, 5 June, 2010
13
Observatory
Longitude
( o ' ")
Latitude
( ' ")
Ant (m)
Operating Bands
Remarks
TRAO
(KASI)
127 22 18
36 23 54
13.7
86-116,
127-175 GHz
S, C, VLBI
2.2-2.8, 8-9, 22-24,
42-44, 86-116, 127- S, C, VLBI
150 GHz
Yonsei Univ.
(KVN)
126 56 35
37 33 44
21
Ulsan Univ
(KVN)
129 15 04
35 32 33
21
"
S, C, VLBI
Tamna Univ.
(KVN)
126 27 43
33 17 18
21
"
S, C, VLBI
2x2
410 MHz,
610 MHz,
500 MHz-18 GHz
(연속파)
S, C
C
S
K-SRBL
(KASI)
127 22 18
36 23 54
IRS
(MIC)
127 32 58
37 09 01
6, 10
30-100 MHz,
100-500 MHz,
500-2500 MHz
SRAO
(Seoul Natl. Univ.)
126 57 19
37 27 15
6
85-115 GHz,
200-270 GHz
SRT
127 00 07 37 18 48
2
1400-1427 MHz
(Geongi High School)
* (S : single dish, C : Continuum, VLBI : Very Long Baseine Interferometry)
RAFCAP 7th meeting, Tokyo, 5 June, 2010
S
THE MOST POWERFUL
mm-VLBI NETWORK SYSTEM
ON OUR PLANET!
TOP Brand
Multi Frequency &
Simultaneous Obs.
mm-VLBI system
high speed
Correllator system
east Asia VLBI center
Taeduk Radio Astronomy Observatory, 14m
RAFCAP 7th meeting, Tokyo, 5 June, 2010
KVN
: Korean VLBI Network
(21m  3 dishes)
Seoul – Yonsei Univ.
Ulsan – Ulsan Univ.
Jeju – Tamna Univ.
Operating Frequency Bands
21.5-23.5 GHz
42-44 GHz
86-129 GHz
RAFCAP 7th meeting, Tokyo, 5 June, 2010
The 2nd Radio Facility of Korea
 KVN (Korean VLBI Network)
 3 × 21m Antennas
 4 Channels (22, 43, 86, 129 GHz)
Simultaneous Observing System
 Multi-Channel Phase Correction System
 Korea & Japan Correlator
- 16 Recorders for EAVN
VERA 22/43GHz phase ref. test
(Jung et al.) r 0.99
RAFCAP 7th meeting, Tokyo, 5 June, 2010
KVN-Recent State and Future
System
System
States
Telescopes
Installed in 2008
22/43 GHz
Installed in 2009
86/129 GHz
Install one set in 2010
Install all set in 2011
Rx
Correlator
Install in 2010
RAFCAP 7th meeting, Tokyo, 5 June, 2010
KVN-Recent State and Future
Observations
Frequency
States
Single Beam
- Started from 2009
- Open from 2010
VLBI
- On Test Observation
- Start from 2011
Single Beam
- Start from 2011
VLBI
- Start from 2012
22/43 GHz
86/129 GHz
RAFCAP 7th meeting, Tokyo, 5 June, 2010
RAFCAP 7th meeting, Tokyo, 5 June, 2010
22/43 GHz Test Observations
Orion-KL, H2O and SiO Maser Line
Simultaneous Observation Results !!!!!
on October 28th 2008
RAFCAP 7th meeting, Tokyo, 5 June, 2010
VLBI Test Observations
RAFCAP 7th meeting, Tokyo, 5 June, 2010
VLBI Test Observations
Ulsan-Tamna
Yonsei-Tamna
Yonsei-Ulsan
- Source : NRAO150
- Date : Oct. 12, 2009
- Freq. : 42.809 GHz
(Continuum)
RAFCAP 7th meeting, Tokyo, 5 June, 2010
Correlator
- Korea-Japan Joint VLBI Correlator
- 16 Recorders
(8 Mark5B, 4 VERA2000+DMS-24, 4 K5)
- 16 RVDB (Raw VLBI Data Buffer)
- Data Archive
(100TB, 1PB in future)
- Serve of VLBI data analysis
- Backup system
- e-VLBI
RAFCAP 7th meeting, Tokyo, 5 June, 2010
KJJVC(Korea-Japan Joint VLBI Correrlator)
RAFCAP 7th meeting, Tokyo, 5 June, 2010
Future Plan of KVN
2008
TEST of
KVN+VERA
VLBI OBS.
Ulsan RAO
KVN Yonsei RAO
Tamna RAO
2009
2010
2011
VLBI with
3stations of KVN
<VLBI TEST with VERA>
Operating with J-K Correlator
Lunch with 86/129 GHz
RAFCAP 7th meeting, Tokyo, 5 June, 2010
East-ASIA
VLBI Center
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Report from Korea