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MultiPoint Newsletter - September 2013

Wi-Fi Operation on Channels 12 and 13

Question: We manufacture a Wi-Fi client that operates on Channels 12 and 13. What is the FCC’s current policy regarding transmission on these channels?

Answer:  Wi-Fi clients that transmit on Channels 12 and 13 must meet all of the emission requirements specified in for that band. If the client does not meet these requirements, these channels must be disabled.

Wi-Fi client devices typically contain active or passive roaming circuitry algorithms that are proprietary and not part of 802.11 Wi-Fi protocols. This on-roam scanning may use active or passive scanning to determine if a master transmits on Channels 12 and 13. In these cases, the Wi-Fi client device must still be able to determine that the master is transmitting in a manner compliant with the FCC rules and regulations.  

Many Wi-Fi clients rely on the access point to ensure proper operation. Thus, some changes will be required for these devices to operate in compliance in all circumstances. In recognition of the need for changes, and the time required to implement the changes, the FCC is permitting a transition period until March 31, 2014 to ensure that all new device approvals are consistent with the requirements, and where appropriate, changes are made to currently approved products. During this transition period, devices that rely on scanning circuitries may be approved, but the FCC is encouraging manufacturers to implement revisions as quickly as possible.

To obtain approval for transmitting on Channels 12 and 13, your test report would need to clearly show that Channels 12 and 13 were tested and compliant. Your application filing should also specify the appropriate frequency band and the reduced output power required for radiated field strength compliance at the band edge of 2483.5 MHz.
 


FCC’s Derived Formula for MIMO Devices Employing CCD

Question: We are a new manufacturer of MIMO (multiple-inputs and multiple-outputs) devices employing Cyclic Delay Diversity (CCD). How does the FCC derive the formulas used in its KDB procedure 斗地主达人662911 D01 Multiple Transmitter Output v02?

Answer: The FCC report “FCC/OET 13TR1003, Directional Gain of IEEE 802.11 MIMO Devices Employing Cyclic Delay Diversity” provides guidance and an explanation of the formulas used in KDB procedure 662911 for MIMO technology allowing additional directional gain to be achieved through array antennas, beyond the gains of the individual antennas, by transmitting signals that are mutually correlated. When additional gain is intentionally created to improve performance, beam-forming is employed; with CDD, the array gain is not intentionally created.

For example, with CCD schemes spatial diversity is introduced to the transmission system in order to achieve the high reliability and availability without using additional bandwidth. CCD diversity is used in OFDM-based telecommunications systems, transforming spatial diversity into frequency diversity in order to avoid inter-symbol interference so as not to degrade system performance. 
 


FCC Part 15 Rule Changes to 60 GHz Band

Question: We manufacture a 60 GHz video transmission system. It is our understanding that the FCC recently modified its Part 15 rules for intentional radiators operating between 57 and 64 GHz. Can you summarize the rule changes?

Answer:  Effective August 9, 2013 the Part 15 rules for intentional radiators operating on an unlicensed basis in the 57-64 GHz frequency range (60 GHz) were modified as follows:

  • Allow higher emission limits for 60 GHz devices that operate outdoors with very high gain antennas to encourage broader deployment of point-to-point broadband systems; 
  • Specify the emission limit for all 60 GHz devices as an EIRP power level to promote repeatability of measurement data and provide uniformity and consistency in the rules;
  • Eliminate the requirement for certain 60 GHz devices to transmit identification information (transmitter ID); 
  • Permit longer communication distances for unlicensed 60 GHz point-to-point systems that operate outdoors thereby extending the ability of such systems to provide broadband service, particularly to office buildings and other commercial facilities.
The FCC believes that these rule changes will enable enhanced 60 GHz systems to provide broadband access to every American by providing additional competition in the broadband market, lowering costs for small business owners accessing broadband services, and supporting the deployment of 4th generation (4G) and other wireless services in densely populated areas. 

For more information on this issue please click here.
 

Industry Canada Transition to IEEE 1528-2013

Question:  We manufacture Wi-Fi products and would like to know Industry Canada’s (IC) position on IEEE 1528-2013 as it relates to , which incorporates by reference IEEE 1528, specifically Section 3 lists SAR evaluations are to be performed in accordance with IEEE 1528 and/or IEC 62209. Will IC accept the newly published IEEE 1528-2013?

Answer:  Yes, IC will accept the newly published IEEE 1528-2013 at this time, even though it will not officially be adopted until December 1, 2013. During this transitional period, IC will:

  • Accept IEEE 1528-2003, or IEC 62209-1 Ed. 1, or IEEE 1528-2013 standards for the SAR compliance assessment of devices held next to the head. After December 1, 2013, only IEEE 1528-2013 will be accepted for the SAR compliance assessment of devices held next to the head.
  • Not accept the use of a combination of different standards (e.g. System Check of IEEE 1528-2003 and SAR measurement protocols of IEEE 1528-2013) for SAR compliance assessment of devices held next to the head. Testing shall be done using one standard only, not a combination of standards.

 


Standards Updates


EU: New CENELEC Standards Recently Released

This is a shortened list of the CENELEC standards published or made available during the past month:

  • - (8/23/2013) - Safety of hand-held electric motor operated tools - Particular requirements for spray guns
  • - (8/23/2013) - Information technology equipment - Safety - Part 1: General requirements
  • - (8/23/2013) - Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current <= 16 A per phase and not subject to conditional connection
  • - (8/30/2013) - Alarm systems - Alarm transmission systems and equipment - Part 2: Requirements for Supervised Premises Transceiver (SPT)
  • - (8/30/2013) - Alarm systems - Alarm transmission systems and equipment - Part 3: Requirements for Receiving Centre Transceiver (RCT)
  • - (8/30/2013) - Household and similar electrical appliances - Safety - Part 2-14: Particular requirements for kitchen machines
  • - (8/30/2013) - Household and similar electrical appliances - Safety - Part 2-15: Particular requirements for appliances for heating liquids
  • - (9/13/2013) - Electromagnetic compatibility of multimedia equipment - Emission requirements
  • - (9/6/2013) - Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements

斗地主达人 See for additional information。

EU: New ETSI Standards Recently Released

This is a shortened list of the new ETSI standards published during the past month:

  • - (August 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); System Reference Document; Short Range Devices (SRD); Technical characteristics of wireless aids for hearing impaired people operating in the VHF and UHF frequency range
  • - (August 2013) - ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); System Reference document (SRdoc); DECT operating in the 1 900 MHz - 1 920 MHz band
  • - (August 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Land Mobile Service; Radio equipment using integral antennas intended primarily for analogue speech; Part 1: Technical characteristics and methods of measurement
  • - (August 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Land Mobile Service; Radio equipment using integral antennas intended primarily for analogue speech; Part 2: Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive
  • - (August 2013) - Fixed Radio Systems; Point-to-point and Multipoint Systems; Unwanted emissions in the spurious domain and receiver immunity limits at equipment/antenna port of Digital Fixed Radio Systems
  • - (August 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 3: Specific conditions for Short-Range Devices (SRD) operating on frequencies between 9 kHz and246 GHz
  • - (August 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); System Reference document (SRdoc); Spectrum Requirements for Narrow band Point-to-Multipoint (nP2M) system operating in the 430 MHz - 470 MHz frequency rang
  • - (September 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Tests on the immunity of Wind Profiler Radar to transmissions from RFID, ALDs and GSM

斗地主达人 See for additional information。

EU: New IEC Standards Recently Released

This is a shortened list of the new IEC standards published during the past month:

  • - (8/6/2013) - Corrigendum 2 - Information technology equipment - Safety - Part 1: General requirements
  • - (8/20/2013) - Industrial communication networks - Wireless communication networks - Part 2: Coexistence management
  • - (8/23/2013) - Universal serial bus interfaces for data and power - Part 3: USB Battery Charging Specification, Revision 1.2
  • - (8/29/2013) - AC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guidance for installation and operation
  • - (8/29/2013) - Amendment 1 - AC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guidance for installation and operation
  • - (8/29/2013) - Degrees of protection provided by enclosures (IP Code)
  • - (8/29/2013) - Amendment 2 - Degrees of protection provided by enclosures (IP Code)
  • - (8/29/2013) - Thermocouples - Part 1: EMF specifications and tolerances
  • - (9/9/2013) - Electronic paper display - Part 3-2: Measuring method - Electro-optical

See for additional information。

FCC - Upcoming TCBC Workshop

The Telecommunications Certification Body Council (TCBC) will host its October 2013 Workshop from October 22-24, 2013 at the Holiday Inn - Inner Harbor in Baltimore, Maryland。   TCBC expects great participation from the FCC again。   Topics included are as follows:

  • FCC Updates and Roundtable discussions
  • Updates from Industry Canada
  • Updates on SAR from Japan MIC
  • NIST MRA Updates
  • Fast SAR


Canada - Changes to RSS-102

On September 11, 2013, Industry Canada issued Notice 2013-DRS0911 regarding the impact of the recent publication of IEEE 1528-2013 on Canada's RSS-102 test standard.
 
Industry Canada's RSS-102 – RF exposure compliance of radiocommunication apparatus (All frequency Bands) incorporates by reference the international standard IEEE 1528. Section 3 of RSS-102 Issue 4 states: SAR evaluations shall be made in accordance with the latest version of IEEE 1528 and/or IEC 62209.
 
On September 6, 2013, the IEEE 1528-2013 entitled IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques was published by the IEEE standard organization. 
 
Industry Canada will allow a transition period for the adoption of this latest IEEE standard.
 

EU - EN 60950-1:2006, Amendment 2 Published

In August 2013, CENELEC published Amendment 2 to EN 60950-1:2006 Information technology equipment - Safety – Part 1: General Requirements. This amendment amends EN 60950-1:2006 and its Amendments 1 and 12. CENELEC further set the latest date of withdrawal for older versions to be 7-2-2016.
 
EN 60950-1:2006/A2:2013 adopts the text of the International Standard IEC 60950-1:2005/A2:2013, it further covers common modifications to IEC 60950-1:2005/A2:2013, normative references to international publications with their corresponding European publications, and Special national conditions. To be able to meet upcoming regulatory requirements in European markets, ITE and office equipment manufacturers are suggested to comply with the new revision for their existing products and upcoming new products. 
 

EU - EN 61010-1 3rd Edition Compliance Required by October 2013

EN61010-1 is the internationally harmonized safety standard for laboratory, process control, and test & measurement equipment and products sold into the EU must comply with its new 3rd edition by October 1, 2013.
 
A few main changes to the standard are as follows:
  • New allowance for products with permanent supply cords
  • New test for transformers with a protective bonding screen
  • New requirements for layered PWBs, molded and potted parts, and thin-film insulation
  • New requirements for insulation, including air clearance and creepage distances
  • Test voltages are no longer based on clearance distances, thus interpolation is no longer needed
  • Voltage tests on solid insulation are now 1 minute, up from 5 seconds
  • New standard for impulse test is now EN 61180-1 (formerly EN 60060), and requires 5 impulses instead of 3
  • Requirements for sharp edges were added
  • Introduces the new requirements for moving parts, which include risk assessment requirements
  • New requirements for gaps between moving parts, and limiting forces and pressures
  • New requirement for load testing on parts supporting heavy loads
  • Added the IK rating as a means to identify the degree of protection required for the enclosure, referencing EN 62262
  • Surface temperature limits were modified to align with EN 563
  • Radiation requirements have been modified to include intended and unintended emission
  • Requires a review of the manufacturer’s risk assessment file as part of the overall evaluation of the product
 

South Korea – September 2013 Spectrum Changes

Beginning in September 2013, South Korea's National Radio Research Agency (RRA) Public Notice number 2013-29 will be implemented for the purpose of frequency spectrum harmonization. Below is an overview of the changes:
  • 20 MHz bandwidth requirements for 1710-1745 MHz, 1805-1840 MHz, 500-2540 MHz, and 2620-2660 MHz that utilize OFDMA and SC FDMA enacted;
  • Revised 5 MHz and 10 MHz bandwidth requirements for 1710-1745 MHz, 1805-1840 MHz, 2500-2540 MHz, and 2620-2660 MHz, which utilize OFDMA and SC FDMA;
  • Modified spectrum requirements of the wireless broadband WIBRO standard to avoid interference in adjacent bandwidth, and to revise unwanted emission requirements of the transmitter;
  • Alignment with the 3rd Generation Partnership Project (3GPP) standard specifications.

EU – New Directive for Exposure of Workers to the Risks Arising from Electromagnetic Fields

In early July 2013, on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (electromagnetic fields) was published in the EU's Official Journal.
 
The legislation incorporates new international exposure limits, while leaving some flexibility for the military and magnetic resonance imaging (MRI) sectors, and obliges employers to assess and reduce risks. The legislation covers all sectors but chiefly concerns workers exposed to a level of risk, for example in the steel industry or people working long hours close to TV and radio broadcasting stations and radar installations.
 
A few highlights of the publication are listed below: 
  • Tougher limits: The limit values for exposure to electromagnetic fields and the levels at which the employer must take action must now be based on the new, more stringent recommendations of the International Commission on Non-ionising Radiation (ICNIRP).
  • Employers must assess and reduce risks: Under the new rules, employers are obliged to assess the risks of exposure to electromagnetic fields and to take the necessary measures to reduce them for example by replacing equipment or using interlocks or shielding mechanisms.
  • Exemptions for magnetic resonance imagery and military applications: Since the system of limit values could restrict the use of certain medical technologies or military applications, the legislation includes exemptions in these sectors provided measures are taken to prevent adverse health effects and safety risks.
  • Long-term health effects: The new directive addresses the short-term direct biophysical effects (e.g. tissue heating, stimulation of muscles, nerves or sensory organs) and indirect biophysical effects (e.g. interference with medical electronic equipment such as cardiac pacemakers). However, at Parliament's insistence, the Commission is tasked to monitor scientific progress and table new proposals, if necessary, to address possible long-term effects.
Member States must bring into force the laws, regulations and administrative provisions necessary to comply with this Directive by July 1, 2016.
 

Libya - New Type Approval Requirements for Radio Equipment

In early September 2013, Libya's official Type Approval regulations and procedures were released by its Ministry of Communications & Informatics. These regulations now require mandatory Type Approval in Libya for all radio equipment imported and sold.
 
Test reports issued under R&TTE are acceptable, however the reports must be issued by ILAC (International Laboratory Accreditation).  Local agents are required for foreign manufacturers and these agents must act as the local applicant.  The lead-time for approvals is between 5-6 weeks and the Type Approval certificates are valid for 5 years.
 

South Africa - New Labeling Regulations

In late August 2013, South Africa's Independent Communications Authority (ICASA) released Note 872 concerning updated labeling regulations for all telecommunication and RF equipment sold in South Africa.
 
This new regulation will come into effect once it is published in South Africa's Government Gazette.  The details of the new label rules are below and they are similar to existing rules with the exception that E-labeling will be allowable (#6) and label size restrictions have been defined (#5):
  1. Labels must be affixed to the device before the device is made available for sales or lease or is supplied in any other manner. The label must be legible and protected against damage.
  2. The Label must bear ICASA logo and issued certificate number (TA XXXX-YYYY).
  3. Labels may be obtained from ICASA upon payment of applicable fee.
  4. In the event of suppliers wishing to produce their own label, a written request must be submitted for ICASA Approval prior to supply or use of equipment. ICASA will issue a formal letter in response to supplier's request to confirm if proposed label design has been approved.
  5. The minimum size of the ICASA logo on the label must be 3mm high and 3mm wide, the certificate number must be 1mm high, and the height to width ratio of the overall ICASA label must be 1:2. (e.g. 10 x 20 mm).
  6. E-labeling can also be used as an alternative method; a written request must be submitted for ICASA.
Approval prior to supply or use of equipment. ICASA will issue a formal letter in response to supplier's request to confirm if proposed label design has been approved. E-labels must be displayed in at least one of the following methods:
  • During the device's power up sequence,
  • Under the device's system information page,
  • Under the help menu on the device.
Documentation accompanying the device must clearly indicate how the user may access the label.

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