Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.atnf.csiro.au/people/Tasso.Tzioumis/sms2014/presentations/Gergely(SMS4_ITU_Registration).pptx.pdf Äàòà èçìåíåíèÿ: Sun May 18 12:33:15 2014 Äàòà èíäåêñèðîâàíèÿ: Mon Apr 11 18:04:34 2016 Êîäèðîâêà: Ïîèñêîâûå ñëîâà: arp 220

National Science Foundation

Registration of Radio Astronomy Stations

Tomas Gergely National Science Foundation 4th School in Spectrum Management for Radio Astronomy JAO, Santiago de Chile April 10, 2014
1


National Science Foundation

Allocations · · · · ·
An Allocation (to RA or any other service) in the International/National Table Does NOT Provide Protection from Interference by Itself (except, possibly, for those bands covered by RR 5.340- All emissions prohibited...!) Allocations Provide a Framework for Protection The International Allocations May Be (And For Convenience Generally Are) Implemented by Each Country Individually BUT...There Is No Obligation to Do So - Each Country Retains Sovereign Rights Regarding Spectrum Use Within Its Borders ­There Is No Requirement to Conform to the International Allocations Administrations Can Provide Protection to Observatories Through Regulatory Action Other Than Frequency Allocation (e.g. Quiet or Coordination Zones)
2


National Science Foundation

So Why Register ?

3


National Science Foundation

Registration Provides ·
International Recognition ­The ITU and the Radio Engineering Community Doesn't "Know" That Your Observatory Exists Until It Is Registered (Don't Assume That If You Operate the World's Largest Dish, Everyone Knows About It, Much Less That Everyone Is Mindful of It's Sensitivity!) In the Case of Some Bands, Used by Non-Geostationary Satellite Systems, a Commitment by the Registering Administration To Comply With Aggregate (Unwanted Emission) Power Flux-Density Limits in a Neighboring Radio Astronomy Band, at Registered Observatory Sites A Mechanism to Initiate Resolution In Case Harmful Interference Occurs (to a Telescope located in Country A from Transmitters of, or Satellites Registered by, Country B). Much More Difficult To Do So for Unregistered Telescopes
4

·

·


National Science Foundation

In Terms of the Radio Regulations:

5


National Science Foundation

International Regulations
Registration, rights and examination

·

·

administrations in respect of their own and other administrations frequency assignments shall be derived from the recording of those assignments in the Master International Frequency Register (MIFR) ...

8.1 The international rights and obligations of

8.3 Any frequency assignment recorded in the Master

· ·
·

Register with a favorable finding (operating under a radio astronomy allocation) under 11.31 shall have the right to international recognition. ...this right means that other administrations shall take it into account when making their own assignments in order to avoid harmful interference.

11.30 Each notice shall be examined: 11.31 a) With respect to its conformity with the Table of

Allocations and other provisions of these Regulations....
6

11.31.2 The other provisions shall be identified and included in the Rules of Procedure (RoP).


National Science Foundation

International Regulations · · ·
Radio Astronomy Stations
radio astronomy band) are recorded for information purposes (only) IF the registering Administration states that it will be operated in accordance with RR 4.4

8.4 Non- conforming assignments (observations outside a

11.12 Any frequency to be used for reception by a particular radio astronomy station may be notified if it is desired that such data be included in the Master Register 11.31.3 Notices relating to radio astronomy stations are examined with respect to 1.31 only (does it operate in a radio astronomy band or not?)
Administrations...shall not assign to a station any frequency in derogation of either the Table of Frequency Allocation...or the other provisions of these Regulations, except on the express condition that such station, when using such a frequency assignment, shall not cause harmful interference to, and shall not claim protection from harmful interference caused by, a station operating in accordance with ...these Regulations.
7

BUT · 4.4


National Science Foundation

International Regulations
In Case of Harmful Interference..

· ·

15.25 Administrations shall cooperate in the detection

and elimination of harmful interference, employing where appropriate the facilities described in Article 16 (monitoring), and the procedures detailed in this section BUT

4.6 For the purpose of resolving cases of harmful
interference, the radio astronomy service shall be treated as a radiocommunication service. However, protection from services in other bands shall be afforded the radio astronomy service only to the extent that such services are afforded protection from each other.

8


National Science Foundation

Data Requirements for Notification of Radio Astronomy Assignments

· · · ·

Data requirements for registration of radio observatories are listed in Appendix 4, Annex 2 of the RR, along with those necessary for registration of Earth stations. Annex 2B provides a quick look table of the necessary parameters. WRC action is necessary to change these parameters! Be sure to use the latest version of the RR (currently 2012)
9


National Science Foundation

Data Required
· · · · · · · · · · Name of the Radio Observatory Country or geographical area where it is located Notifying Administration Geographical coordinates
> Latitude and Longitude in (DD/MM/SS, to 10th of min accuracy)

Date on which use of frequency begins Azimuth range in which the telescope operates Operating Agency and its address Antenna type, dimensions, and effective area A Center frequency of band observed Bandwidth (in kHz) Tsys (K) referred to the output of the antenna

eff

· · · ·

Observation Class (A/B) Single Dish (or closely connected array) or VLBI dish? The minimum elevation angles (min ) of the antenna's main beam axis from the horizontal plane
10


National Science Foundation

A Practical Issue

· · ·

Receivers Are Seldom Confined to RA Bands
> Assume That You Want to Register Your L-Band Receiver, That Covers the 1200-1700 MHz Range

B R R R

e e e e

cause Protection is Due in RA gistering the Entire 1200-1700 sult in an Unfavorable Finding gistration Should Be Done Pie
1 1 1 1 1 1 1 1 2 3 4 4 6 6 6 6 0 5 0 2 1 1 6 7 0 0 0 7 0 3 0 0 -1350 -1400 -1427 - 1610 .6-161 .8-166 -1670 -1700

Bands Only, MHz Band Will (No Protection) cemeal:

> > > > > > > >

MHz ­ Covered by RR 4.4 (Information only) MHz ­ Covered by RR 5.149 MHz ­ Exclusive Passive Allocation .6 MHz ­ Covered by RR 4.4 (Information only) 3.8 MHz ­ Primary Shared Allocation, 0 MHz - Covered by RR 4.4 (Information only) MHz Primary, Shared RR 5.149 MHz Covered by RR 4.4 (Information only)
11


National Science Foundation

Compliance With Aggregate Power Flux-Density Limits
Administrations Registering Non-Geostationary Satellite Systems With the ITU Must Certify That They Comply With the Rec. ITU-R RA.769 levels
NGSO Service FSS RNSS FSS NGSO BAND RAS BAND Footnote 5.511A 5.443B 5.551G

15.43 ­15.63 GHz 15.35-15.4 GHz 5010-5030 MHz 41.5-42.5 GHz 4990-5000 MHz 42.5-43.5 GHz

12


National Science Foundation

Registered Stations · · · ·
RAS stations registered with the ITU-R are included in: List VIII A - List of Stations in the Space Radiocommunication Services and in the Radio Astronomy Service. Publication of the list is mandated by RR 20.13§ 9 Available from the ITU-R at: http://www.itu.int/pub/R-SP-LN/en Lists of radio observatories (not necessarily registered with the ITU are maintained by:
> CORF: http://sites.nationalacademies.org/BPA/BPA_059065 > CRAF: http://www.craf.eu/raobs.htm > RAFCAP: http://www.atnf.csiro.au/rafcap/AP_RT.htm

13


National Science Foundation

· · ·

Since Radio Astronomy stations Do Not Cause interference, Registration is Not Mandatory, But Is Highly Recommended Registration With the ITU MUST Be Done in a Set Format by National Administrations (by the Recognized Regulatory Agency) Some Administrations Allow/Encourage Registration of Radio Astronomy Stations at the National Level
14