1 / 13

Radiosonde Transmitter Standardization in Europe

Radiosonde Transmitter Standardization in Europe. Ilkka Ikonen Vaisala Oyj Geneva 2006-03-20 – WMO Workshop on Frequencies. Legal issues.

kayo
Download Presentation

Radiosonde Transmitter Standardization in Europe

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Radiosonde Transmitter Standardization in Europe Ilkka Ikonen Vaisala Oyj Geneva 2006-03-20 – WMO Workshop on Frequencies

  2. Legal issues • Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on Radio Equipment and Telecommunications Terminal Equipment and the mutual recognition of their conformity (R&TTE Directive) • Apparatus put into service in the Member States (of EU) shall be submitted into the conformity assessment (of the essential requirements in the Article 3) • Manufacturer has the responsibility to show that apparatus comply with this directive and are properly marked • One method to show the conformity is harmonized standards.

  3. Article 3, Essential requirements R&TTE Directive 1999/5, of the Article 3, point2 reads: 2. In addition, radio equipment shall be so constructed that it effectively uses the spectrum allocated to terrestrial/space radio communications and orbital resources so to avoid harmful interference This is in accordance with ITU and WMO incentives to improve spectral usage of radiosondes.

  4. Practical Issues • One method to show the conformity with the RTT&E directive is a harmonized standard. • Apparatus meeting the appropriate standards shall bear CE marking. • Only CE marked apparatus are legal in EU. • ETSI gives a public forum to perform the standardization task in Europe – to create an EN (European Norm).

  5. ETSI(European Telecommunications Standard Institute) • ETSI is officially responsible for standardization of Information and Communication Technologies (ICT) in Europe. • ETSI is officially recognized by the European Commission and the EFTA secretariat. • ETSI ensures that harmonised standards are drafted in a way, which allows unambiguous interpretation and can be appropriately updated when needed.

  6. Why one needs specific radiosonde transmitter standard ? • To comply with the R&TTE Directive 1999/5, and to show the conformity of the Article 3 • To avoid the application of the SRD standard EN300 220 SRD on radiosondes: • SRD standard does not fit to radiosondes • There have been continuos changes to the EN300 220 • To take into account the radiosonde special features: • High dynamic range in the reception power, • Wide temperature range, • Radiosonde is a disposable product.

  7. Standardization process • All interested parties are welcome to participate task groups (ERM – TG xx) within ETSI to prepare standards (ERM = Electromagnetic compatibility and Radio spectrum Matters) • TG25 for 1680 MHz • TG28 for 400 MHz • TGs report to ERM that accept the work done, and sends it to the public inquiry and voting. • After the ETSI process, standards will be issued to the community in the EU official publication (harmonized). • Accredited notified body issues CE marking.

  8. Standardization process - history Standardization of the 400 MHz transmitter • ETSI working group ERM-TG28 – SRD devices • Work started early 2000 • Accepted by ERM early 2003 • Standard is EN 302 054 Standardization of the 1680 MHz transmitter • ETSI working group ERM-TG25 - Aviation • Work started early 2004 • Accepted to public inquiry – 2006-02-22 • Standard is EN 302 454 – estimated to be harmonized by late 2006

  9. ETSI EN Approval - Notification of new PE 20060623 for TB Officials & Work Item Rapporteurs • Dear Madam, dear Sir, • Please note that the above mentioned Public Enquiry containing the following document(s) is now open. • Please check the bottom of this email for instructions. • ------------------------------------------------------------------------------------------ • ETSI EN 302 454-1 V1.1.1 (2006-02) (35 paper pages/0 soft pages) • Public Enquiry: PE 20060623 Start: 2006-02-22 End: 2006-06-23 • Technical Body: TG ERM TG25 • ERM Aeronautical • Title: • Electromagnetic compatibility and Radio spectrum Matters (ERM); • Meteorological Aids (Met Aids); • Radiosondes to be used in the 1 668,4 MHz to 1 690 MHz frequency range; • Part 1: Technical characteristics and test methods • ------------------------------------------------------------------------------------------ • ETSI EN 302 454-2 V1.1.1 (2006-02) (14 paper pages/0 soft pages) • Public Enquiry: PE 20060623 Start: 2006-02-22 End: 2006-06-23 • Technical Body: TG ERM TG25 • ERM Aeronautical • Title: • Electromagnetic compatibility and Radio spectrum Matters (ERM); • Meteorological Aids (Met Aids); • Radiosondes to be used in the 1 668,4 MHz to 1 690 MHz frequency range; • Part 2: Harmonized EN covering essential requirements under article 3.2 of the R&TTE Direc • ------------------------------------------------------------------------------------------ • To download any of the above items in Word or PDF Format, please go to : • http://webapp.etsi.org/ENApproval/Home.asp?T=PE&S=OPEN&N=20060623&pTB_ID_LIST=581 • For more information/help on accessing or using the Voting System, you can contact us by sending an e-mail to: • mailto:webvote-contact@etsi.org • All Publications can also be found under: • http://pda.etsi.org/PDA/ • Best Regards, • The Editing Document Management Team • ETSI - Standards Production Area

  10. What do the standards cover ? • Essential is that different make radiosondes are tested in the same way and same criteria are applied for acceptance. • Transmitter standard covers: • Test conditions • Equipment used in testing • Measurement uncertainties • Methods of measurement • Limits and values for essential transmitter properties

  11. What do the standard not cover ? • Radiosonde transmitter standards cover only test methods and spectrum usage issues. • Excluded from transmitter standardization are: • Quality of the product • Performance issues (other than spectrum related) • Modulation (but the standard covers digital modulation only) • Data transfer speed • Data contents and format • Receiving system properties and performance

  12. General Issues • Radiofrequencies are limited resources, and shall be divided fairly among the users and used respecting others’ applications • Harmful interference to others shall be avoided • The European R&TTE Directive 1999/5 urges the “good use” of the radiofrequencies • The standards are commonly agreed upon way to meet the need of the “good use” • To meet the laws and regulations make meteorological community a fair and respected player in the field • Radiosondes are not the only need of the meteorology • Meteorology respects others and count on others’ respect in turn

  13. THANK YOU FOR YOUR ATTENTION

More Related