KVN RAS in KOREA Current status

KVN Basic Concepts Our DUTY Registration our RA sites  Helping peoples for Better Lives Our RIGHT protect RAS from harmful interference and share with other Active Services Our DUTY Registration our RA sites  Helping peoples for Better Lives Our RIGHT protect RAS from harmful interference and share with other Active Services

KVN 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 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

KVN What can WE do for Protection & Sharing Activities 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-11 PG) - International Activities : WRC (/3-4 year) : regional meetings(APG, RAFCAP, IUCAF)-/year Technical Studies - Domestic Activities (Korea ITU-R) - International Activities : ITU-R (SG7, WP7D), CPM Political Activities - Domestic Activities (Korea WRC-11 PG) - International Activities : WRC (/3-4 year) : regional meetings(APG, RAFCAP, IUCAF)-/year

KVN Protection & Sharing Activities Related WPRelated issues Korea ITU-R SG7 ￮ Science service ￮ ITU-R WP7D, WP1A Korea WRC-07 WG4 ￮ APG-11, CPM-11, WRC-11 ￮ WRC-11 Agenda Items 1.6, 11, 12, 16, 24 UWB Study Group mm-wave Study Group ￮ sharing study from 3.1 GHz to 10 GHz ￮ mainly focusing with ~ 25, GHz Korea ITU-R SG1 Korea WRC-07 WG3, 5 ￮ other ITU-R issues and WRC-11 issues Major Domestic Activities

KVN Protection & Sharing Activities Related WPRelated issues ITU-R Study Groups ￮ Questions, Recommendations for RAS ￮ ITU-R SG7, WP7D, WP1A ￮ 31 March-4 April, 2008/WP7D/Geneva ￮ October, 2008/WP7D/Geneva APG meeting ￮ WRC-11 Agenda Items for RAS ￮ 6-8 March, 2008/APG-11 1 st /Bangkok IUCAF meeting ￮ Questions, Recommendations for RAS ￮ Issues of WRC-11 Agenda Items Major International Activities

KVN Structure of Korea ITU-R (before 2008)

KVN WRC-11 Preparatory Group (MIC) Steering Committee WG1A AMS WG2 RNSS WG3A FS, MS WG4 Science WG5A Satellite WG6 Future Plan WG1B Maritime WG3B BS WG5B Satellite Structure of WRC-11 Korea PG

KVN WRC-11 Related Issues AI 1.6 to review No 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) WP1A 1.11 to consider a primary allocation to the space research service (Earth-to-space) within the band GHz taking into account the results of ITU-R studies, in accordance with Resolution 735 (WRC-07) WP7B 1.12 to protect the primary services in the band 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) WP7B

KVN 1.16 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) WP7C 1.24 to consider the existing allocation to the meteorological- satellite service in the band MHz with a view to extending this allocation to the band MHz, limited to non-geostationary meteorological satellites in the space-to-Earth direction, in accordance with Resolution 672 (WRC-07) WP7B WRC-11 Related Issues

KVN 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 GHz band and the associated feeder-link bands in Regions 1 and 3(planning methodologies, coordination procedures or other procedures) WG4A WRC-11 Related Issues

KVN RAS in KOREA TRAO, 14m KVN Yonsei KVN Tamna KVN Ulsan SRAO, 6m 경기과학고 Seoul Univ. Yonsei Univ. MIC, Solar Radio KASI Solar Radio

KVN * (S : single dish, C : Continuum, VLBI : Very Long Baseine Interferometry) S MHz SRT (Geongi High School) S GHz, GHz SRAO (Seoul Natl. Univ.) C MHz, MHz, MHz 6, IRS (MIC) S, C 410 MHz, 610 MHz, 500 MHz-18 GHz ( 연속파 ) 2 x K-SRBL (KASI) S, C, VLBI" Tamna Univ. (KVN) S, C, VLBI" Ulsan Univ (KVN) S, C, VLBI , 8-9, 22-24, , , GHz Yonsei Univ. (KVN) S, C, VLBI , GHz TRAO (KASI) RemarksOperating BandsAnt (m) Latitude ( ' ") Longitude ( o ' ") Observatory

KVN 전파로 본 우주 KVN Korean VLBI Network

T HE M OST P OWERFUL mm-VLBI N ETWORK S YSTEM ON O UR P LANET ! TOP Brand Multi Frequency & Simultaneous Obs. mm-VLBI system high speed Correllator system east Asia VLBI center

KVN KVN : Korean VLBI Network (21m  3 dishes) Seoul – Yonsei Univ. Ulsan – Ulsan Univ. Jeju – Tamna Univ. Operating Frequency Bands GHz 8-9 GHz GHz GHz GHz

KVN Taeduk Radio Astronomy Observatory, 14m

KVN 14 m Radio Telescope

KVN System Block Diagram (TRAO)

KVN TRAO Receiver System  100/150 GHz Dual Channel SIS Receiver  (Developed by TRAO)  - Tuning Ranges : 84 ~ 116 GHz, 124 ~ 175 GHz  - Tsys(SSB) :300 ~ 500 K (100 GHz Band)  400 ~ 700 K (150 GHz Band)  - Frequency Auto Tuning system  15 Beam Focal Plane Array Receiver  - Trx (SSB) = 350K, Tsys(SSB) = 800K(at 115GHz)  - Operating Frequency : GHz (Bandwidth 350MHz)

KVN Dual SIS Receiver System

KVN Orion KL IRc2 : Time Monitoring Observation of SiO v=2, J=3-2 (TRAO)

KVN 6m 전파망원경 2002

KVN 6m radio telescope Seoul National Univ. Radio Astronomy Observatory (SRAO) operating from Oct Observing Frequency GHz

KVN First Light of SRAO 230GHz

KVN First Light of SRAO 230GHz

KVN 2.3m Radio Tele Geong-gi High School

KVN Constructing Status KVN Ulsan Radio Astronomy Observatory 1 KVN Yonsei Radio Astronomy Observatory 2 KVN Tamna RAO3 2 East Asia VLBI Center

KVN KVN Ulsan Obs Photogrammetry

KVN KVN Yonsei Obs.

KVN KVN Tamna Obs.

KVN Future Plan  System Configuration of KVN(2008)  Ulsan, Yonsei, Tamna  KVN+VERA Network Test  KVN Ulsan Obs.(> )  Construction of east Asia VLBI Center  < 2009  operating from 2010

KVN Future Plan of KVN East-ASIA VLBI Center Ulsan RAO KVN Yonsei RAO Tamna RAO TEST of KVN+VERA VLBI OBS. 3stations of KVN (VLBI Research Center) Operating with J-K Correlator Test of mm VLBI

KVN T HE M OST P OWERFUL mm-VLBI N ETWORK S YSTEM ON O UR P LANET !