KVNKVN

RAS in KOREARAS in KOREACurrent statusCurrent status

KVN

Basic ConceptsBasic Concepts

• Our DUTYRegistration our RA sites

• Helping peoples for Better Lives

• Our RIGHTprotect RAS from harmful interferenceand share with other Active Services

• Our DUTYRegistration our RA sites

• Helping peoples for Better Lives

• Our RIGHTprotect RAS from harmful interferenceand share with other Active Services

KVN

Final Goals for FreedomFinal 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 ActivitiesProtection & Sharing Activities

Related WP Related 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 Groupmm-wave Study Group

￮ sharing study from 3.1 GHz to 10 GHz

￮ mainly focusing with ~ 25, 75-79 GHz

Korea ITU-R SG1Korea WRC-07 WG3, 5

￮ other ITU-R issues and WRC-11 issues

• Major Domestic Activities• Major Domestic Activities

KVN

Protection & Sharing ActivitiesProtection & Sharing Activities

Related WP Related 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 1st/Bangkok

IUCAF meeting ￮ Questions, Recommendations for

RAS ￮ Issues of WRC-11 Agenda Items

• Major International Activities• Major International Activities

KVN

Structure of Korea ITU-R (before 2008)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

 Maritim

e

         

WG3B 

BS

         

WG5B 

Satellite

           

                               

                               

       

                             

     

Structure of WRC-11 Korea PGStructure of WRC-11 Korea PG

KVN

WRC-11 Related Issues

WRC-11 Related Issues

AI1.6

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)

WP1A

1.11

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)

WP7B

1.12

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)

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 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)

WP7B

WRC-11 Related Issues

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 21.4-22 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

WRC-11 Related Issues

KVN

RAS in KOREARAS 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 : single dish, C : Continuum, VLBI : Very Long Baseine Interferometry)

SS1400-1427 MHz1400-1427 MHz2237 18 4837 18 48127 00 07127 00 07SRT

(Geongi High School)

SRT(Geongi High

School)

SS85-115 GHz,200-270 GHz85-115 GHz,200-270 GHz6637 27 1537 27 15126 57 19126 57 19SRAO

(Seoul Natl. Univ.)SRAO

(Seoul Natl. Univ.)

CC30-100 MHz, 100-500 MHz, 500-2500 MHz

30-100 MHz, 100-500 MHz, 500-2500 MHz

6, 106, 1037 09 0137 09 01127 32 58127 32 58IRS(MIC)IRS

(MIC)

S, CS, C

410 MHz,610 MHz,

500 MHz-18 GHz ( 연속파 )

410 MHz,610 MHz,

500 MHz-18 GHz ( 연속파 )

2 x 22 x 236 23 5436 23 54127 22 18127 22 18K-SRBL(KASI)K-SRBL(KASI)

S, C, VLBIS, C, VLBI""212133 17 1833 17 18126 27 43126 27 43Tamna Univ.(KVN)

Tamna Univ.(KVN)

S, C, VLBIS, C, VLBI""212135 32 3335 32 33129 15 04129 15 04Ulsan Univ(KVN)

Ulsan Univ(KVN)

S, C, VLBIS, C, VLBI2.2-2.8, 8-9, 22-24,

42-44, 86-116, 127-150 GHz

2.2-2.8, 8-9, 22-24, 42-44, 86-116, 127-150 GHz

212137 33 4437 33 44126 56 35126 56 35Yonsei Univ.(KVN)

Yonsei Univ.(KVN)

S, C, VLBIS, C, VLBI86-116, 127-175 GHz

86-116, 127-175 GHz13.713.736 23 5436 23 54127 22 18127 22 18TRAO

(KASI)TRAO(KASI)

RemarksRemarksOperating BandsOperating BandsAnt (m)Ant (m)Latitude ( '  ")

Latitude ( '  ")

Longitude 

( o  '   ")

Longitude 

( o  '   ")ObservatoryObservatory

KVN

  전파로 본 우주  전파로 본 우주

KVNKorean VLBI Network

KVNKorean VLBI Network

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

KVN

KVN : Korean VLBI Network

(21m 3 dishes) Seoul – Yonsei Univ.Ulsan – Ulsan Univ.Jeju – Tamna Univ.

Operating Frequency Bands

2.2-2.8 GHz 8-9 GHz 21.5-23.5 GHz 42-44 GHz 86-115 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 : 86 - 115GHz (Bandwidth 350MHz)

KVN

Dual SIS Receiver System

KVN

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

KVN

6m 6m 전파망원경전파망원경

20022002

KVN

• 6m radio telescope• Seoul National Univ. Radio Astronomy Observatory (SRAO)

• operating from Oct. 2001• Observing Frequency

• 85-240 GHz

KVN

First Light of SRAO 230GHz

KVN

First Light of SRAO 230GHz

KVN

2.3m Radio Tele.2.3m Radio Tele.

20042004Geong-gi High School

KVN

Constructing Status

KVN Ulsan Radio Astronomy Observatory1

KVN Yonsei Radio Astronomy Observatory2

KVN Tamna RAO3

2 East Asia VLBI Center

KVN

KVN Ulsan Obs.

2007. 09.03Photogrammetry

KVN

2007. 06

2007. 10.31

KVN Yonsei Obs.

KVN

2007. 05

2007. 10.

KVN Tamna Obs.

KVN

Future Plan

System Configuration of KVN(2008) Ulsan, Yonsei, Tamna

KVN+VERA Network Test KVN Ulsan Obs.(> 2008. 3)

Construction of east Asia VLBI Center < 2009 operating from 2010

KVN

Future Plan of KVN

2007

2008

2009

2010

East-ASIAVLBI Center

Ulsan RAOKVN Yonsei RAO Tamna RAO

TEST of KVN+VERA VLBI OBS.

3stations of KVN <VLBI TEST with

VERA>(VLBI Research Center)

Operating with J-K CorrelatorTest of mm VLBI

KVNKVN

THE MOST POWERFUL

mm-VLBI NETWORK SYSTEM

ON OUR PLANET!