Pages

Friday, July 20, 2012

Class 1 Status of 2.4 GHz Wireless LAN in the EU

Class 2 Label sample EU R&TTE. Provided by;
Compatible Electronics, Inc..

Confirmed during a Radio and Telecommunications Terminal Equipment Compliance Association (R&TTE CA) meeting held in Vienna, May 2012, the French deviation has expired for the 2.4 GHz band making it a Class 1 band.

Till this point, the 2.4 GHz band has been considered Class 2 in the EU, that is, when importing your product, it must carry the number of a notified body and a special alert symbol in addition to the CE Mark, and you must notify member nations having restrictions, of your intention to place the product on the EU market. Additionally, the product literature would carry a warning of the restriction to “Indoor use only”.

While the notification requirements for the 2.4 GHz use have been eliminated for some time, the last item preventing the 2.4 GHz WLAN from being classified officially as a Class 1 R&TTE device went away on July 1st. The French deviation in the band restricting use of 2.4 GHz WLAN devices to “Indoor use only” has expired.

From July 1, 2012, 2.4 GHz WLAN devices no longer require the alert symbol or Notified Body number, so long as harmonized standards are applied in full to the conformance assessment.

For an explanation of what the class descriptor indicates, see this excerpt from the ETSI.org web site;

“Commission Decision 2000/299/EC defines how equipment is classified according to its use of radio spectrum. It defines two equipment classes as follows:

  • Class 1, which can be placed on the market and taken into service throughout the Community

  • Class 2, to which some Member States apply restrictions and which is required to carry an 'alert symbol'.”

Ref;

R&TTECA

ETSI.org

http://www.art-telecom.fr/

http://www.erodocdb.dk/Docs/doc98/official/pdf/REC7003E.PDF

Tuesday, July 10, 2012

FCC Rule Change Focus on Vehicle and Airport Safety

English: Collision Warning with Brake Support

English: Collision Warning with Brake Support (Photo credit: Wikipedia)

July 3, 2012, the FCC has amended Part 15 rules to enable enhanced vehicular radar technologies in the 76-77 GHz band, and to allow fixed radar applications at airports with an aim to improve safety for personnel and equipment.

The amendment includes a relaxation of limits for vehicular radar technologies, and is justified within the Report and Order, citing that maximum permissible limits for human exposure to RF electromagnetic fields had not been established at the time the rules were originally adopted (1995), and the original limits, intended to protect pedestrians in the proximity of stopped vehicles, are far more restrictive than the currently adopted RF exposure levels.

The modifications are applicable specifically to sections 15.35 and 15.253 of title 47 Part 15.

The amendment to section 15.35 eliminates the requirement that vehicular radars decrease power when the vehicle is not in motion. Furthermore this modification specifies a new relaxed emission limit for 76-77 GHz front, side, and rear illuminating vehicular radars. The FCC takes these actions in response to petitions filed by Toyota Motor Corporation (TMC) and Era Systems Corporation (Era).

The modification of section 15.253 will allow fixed radar systems operating in the 76-77 GHz band to be installed at airport locations. These systems are used for foreign object debris (FOD) detection on runways as well as the ability to monitor aircraft and service vehicle traffic on the taxiways and other non-public ground locations.

The FCC justifies these modifications within the Report and Order claiming they “will provide more efficient use of the spectrum, and enable the automotive and aviation industries to develop enhanced safety measures for drivers and the general public”.

The 76-77 GHz band is considered Extremely High Frequency (EHF), and is within the “W band”, 75 GHz to 119 GHz. The EHF spectrum is what is commonly referred to as the millimeter wave spectrum, which is considered to begin at 30 GHz and end at 300 GHz.

The 76-77 GHz band is primarily allocated to the Radio Astronomy Service (RAS) and the Radiolocation service. Amateur and Space research (space-to-Earth) services utilize this band on a secondary basis.

The National Radio Astronomy Observatory (NRAO) and National Academy of Sciences’ Committee on Radio Frequencies (CORF) has raised concerns about increased interference potential to radio astronomy operations if the rules are adopted. NRAO argues that vehicular radars may interfere with radio astronomy receivers over distances up to approximately 60 miles. NRAO states that “destruction of radio astronomy receivers is a serious possibility” due to the high powered vehicular radars. The Automotive industry disagrees with the claims citing that they are speculative. The FCC notes that vehicular radar has been permitted in the 76-77 GHz band since 1995, and that an increase in potential interference as a result of the rule change is negligible.

Ref:

FCC Report and Order

NPRM ET Docket No. 11-90

Era Systems Corp. 2.803, 15.201, 15.253 waiver request and FCC response

Thursday, June 14, 2012

Multimedia Equipment, emission requirements standard EN 55032 held up due to errors.

Back of audio mixer at bull and gate london

Back of audio mixer at bull and gate London (Photo credit: Wikipedia)

The CEN-CENELEC Management Centre (CCMC) was informed that a considerable number of errors were discovered during the publishing phase of the new EMC standard for multimedia equipment, CISPR 32:2012. The procedure has been endorsed by CENELEC as EN 55032:2012 (dor = 3/5/12). It has been noted that the document submitted for vote was the correct text however.

While the IEC is investigating possible options for correcting the matter, CCMC is informing of the errors and working with the IEC toward a speedy resolution to enable CENELEC members to implement corrections at the national level. The CCMC has also posted a note to the CENELEC website / database informing of this error.

The CCMC will not yet offer EN 55032:2012 to the European Commission for citing in the Official Journal. The intended listing was for the EMC and Radio and Telecommunication Terminal Equipment ( R&TTE)  Directives.

Furthermore the Technical Committee will request that the Date of Withdrawal (DOW) be extended from dor+36 months to dor+60 months.

EN 55032:2012 has a broad scope and applies to multimedia equipment (MME) having a rated r.m.s. AC or DC supply voltage not exceeding 600 V. Equipment within the scope of CISPR 13 (EN 55013) or CISPR 22 (EN 55022) is within the scope of EN 55032. Multimedia equipment intended primarily for professional use is also within the scope of EN 55032.

The term “dor” refers to the date of ratification, and is the date when the technical board notes the approval of a European Norm (EN), at which time the standard may be said to be adopted.

Ref:

CENELC Project : EN 55032:2012

CENELEC Guide 19

Wednesday, June 13, 2012

FCC running out of Grantee codes

WASHINGTON, DC - MAY 13:  FCC Chairman Julius ...
(Image credit: Getty Images via @daylife)
The availability of new FCC issued grantee codes is critically low, and the FCC will soon run out. Today the Commission voted to expand the code from 3, to 5 digits by amending Sections 2.925 and 2.926.

Each product certified to the FCC rules must carry an FCC ID, as an example look on the back of your electronic device for “FCC ID:xxx1234”. This identifier consists of a grantee code making up the first 3 digits, and an applicant assigned unique product code composed of from 1 to 14 additional alpha-numeric characters, dashes or hyphens.

Each entity seeking to obtain a grant of equipment authorization from the FCC, must first obtain the unique grantee code assigned by the FCC. This three digit format uses alpha numeric characters, excluding 0 and 1 in a way that would provide for over 30,000 unique combinations.

This FCC identifier system was introduced in 1979. In 1999, 440 grantee codes had been issued that year. In 2001, 635 grantee codes were issued, and in 2011 the number had increased to 1275 unique grantee codes issued per year.

Given the rate of grantee code issuance, the FCC will soon run out of unique codes. To extend this deadline, the FCC had been recycling old unused grantee codes, however this was only a temporary solution. Today the Commission approved a vote to extend the code to 5 digits. This will provide approximately 8,000,000 unique combinations.

Entities that currently have a 3 digit grantee code may keep the code, but new applicants will be assigned the new 5 digit grantee code approximately 30 - 60 days from the order’s publication in the federal register.

Ref:
Open Commission Meeting June 13, 2012

Friday, May 11, 2012

FCC Extends commenting period for some draft publications

Logo of the United States Federal Communicatio...

(Photo credit: Wikipedia)

The OET (Office of Engineering and Technologies) agreed to extend the commenting period for a number of Draft Knowledge Data Base publications, also known as KDBs,  until June 30, 2012, after receiving and reviewing a number of requests for such an extension.

This extension amounts to an additional 30 day review period. The FCC commented that given the number of different KDB guidance documents, it would be useful for all parties to take more time to review and comment.

Following are the affected draft KDBs;

- General RF Exposure Guidance (447498)

- SAR Evaluation consideration for LTE Devices (941225)

- SAR Measurement, Compliance Reporting, 100 MHz to 6 GHZ (865664)

- SAR Evaluation Considerations for Handsets with Multiple Transmitters (648474)

- SAR Evaluation Considerations for Laptop, Notebook, Netbook (616217)

- TCB Exclusion List (628591)

- Permit But Ask List (388624)

- RF Exposure Evaluation Considerations for Occupational Push-to-Talk Two-Way Radios (643646)

Wednesday, April 11, 2012

New R&TTE and EMC Standards List Published in OJ

New Harmonized standards lists have been published in the Official Journal of the European Union for the Radio and Telecommunication Terminal Equipment(R&TTE) Directive and the EMC Directive.

R&TTE Directive Standards List

EMC Directive Standards List

Tuesday, April 10, 2012

Wireless handset hearing aid compatibility standard adopted

Hearing aid types (300dpi)

Hearing aid types (300dpi) (Photo credit: Wikipedia)

The FCC has formally adopted ANSI C63.19 2011 as an applicable technical standard for evaluating the hearing aid compatibility of wireless phones.

As specified in the Second Further Notice, the new rules permit the use of either ANSI C63.19 2007, or ANSI C63.19 2011  for the testing of new handset models. All existing grants issued under the 2007 standard, as well as any pre-2010 grants remain valid, thus, no existing handset models will require retesting or recertification for hearing aid compatibility.

A 12 month transition period has been adopted for testing of multi-band and multi-mode handsets that incorporate operations which are not covered under the 2007 ANSI Standard. The Report and Order recognizes that as the new rules become effective, some manufacturers will be in production cycles where it will be impractical to return to a testing cycle for upcoming multi-band or multi-mode handsets under the 2011 ANSI Standard. Specifically, during the transition period, and as an alternative to using the 2011 standard, manufacturers may certify handsets as hearing aid compatible if they meet all compatibility criteria under the 2007 ANSI standard for all operations covered by that standard, providing they meet the disclosure requirements set forth in the order. After the transition period, all new handsets that contain operations not covered by the 2007 version will need to comply with the 2011 ANSI standard.

The Report and Order makes it clear that evaluations performed partly under one version of the ANSI standard, and partly under another, is incompatible with existing rules, thus manufacturers must test exclusively with one of the applicable versions.

Ref;

http://transition.fcc.gov/Daily_Releases/Daily_Business/2012/db0409/DA-12-550A1.pdf

http://www.emcrules.com/2011/11/hearing-aid-compatibility-for-wireless.html