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MultiPoint Newsletter - November 2013

Amplifiers As Licensed Transmitters

Question: We manufacture amplifiers and would like to obtain certification under FCC licensed rule parts.  What do we need to consider?

Answer:  To start, you should determine the FCC licensed rule parts under which you wish to market your amplifier.  There are several licensed rule sections that can be applied to amplifiers such as and .

With regard to the certification testing, one requirement is a comparison of the input modulated spectrum and the output modulated spectrum as follows:

  • Occupied bandwidth test under :   If your amplifier handles multiple signals, an inter-modulation (IM) test is required in which the inter-modulation (IM) products are spurious emissions and are covered by the general emissions limitations (mask) in each licensed radio service you choose to market your amplifier.  This normally refers to the IM products produced by a test transmitter (signal generator) and your amplifier carrying two or more signals at the same time.
  • Spurious emissions under :   Requires that measurements be made at the antenna terminals while your test transmitter (signal generator) and amplifier are modulated.

Please note that the FCC normally requires that the IM test(s) be done with three signals of equal magnitude, at your amplifier’s highest rated output level, for each type of modulation, and is considered to be the preferred/primary procedure.  The signals are spaced so that two are near to each other at one edge of the pass band, and the other signal is alone at the other edge of the pass band.  This placement will potentially produce both in-band and out-of-band IM products.

The FCC will consider a two-signal test acceptable, if a three-signal test could not be performed because of equipment shortages or other limitations.

If a two-signal test is used for reasons mentioned above, both the upper and lower side of the band edge must be tested.

 

SDR Operational & Security Description

Question: 斗地主达人 We are SDR (software defined radio) developers and would like to know if the FCC offers any guidance on how to prepare a satisfactory operational and security description of our software for our FCC certification filing?

Answer: Yes, on October 31, 2013 the FCC published 442812 D01 SDR Apps Guide v02r02; Section II provides guidance for the software operational and security description required by 47CFR§2.944.  Section IV explains the Permit but Ask (PBA) procedure and the information that is required to support this critical step in the SDR certification process.

FYI – Also published on October 31, 2013 was 388624 D01 Permit But Ask Procedure v09r03, replacing the version published in June 2013.
 


60 GHz Band Part 15 Test Procedures

Question: Your included a summary of the 47CFR§15 rule changes for intentional radiators operating in the 60 GHz band (57 GHz – 64 GHz).  We are very interested in the relevant test procedures, and any additional information you may be able to provide.

Answer:  The FCC modified its 47CFR§2 and 47CFR§15 rules to allow enhanced use of the 60 GHz band for outdoor devices only; the changes do not affect indoor devices.  For more details on the amended rule part check .

The 60 GHz band test procedures, from the TCB Council and accepted by the FCC Lab, can be found in the document Millimeter Wave Test Procedures.

Please note that peak power must be measured using the FCC RF detector method, using the RF detector with a detection bandwidth encompassing the 57-64 GHz band, and a video bandwidth of at least 10 MHz.  The average emission levels must be calculated based on the measured peak levels, over the actual time period during which transmission occurs.

Detailed information on the required RF Detector Method can be found here: 200443 D02 RF Detector Method v01

The following is a summary of the impact of the 60 GHz band rule part amendments:

  • Provides relatively low cost solution for high capacity, short range backhaul to connect wireless broadband networks as well as other wireless applications. 
  • Makes possible wireless broadband network connectivity for up to one mile at data rates of 7Gb/s.
  • Provides increase in the power allowed for outdoor operations between fixed locations when highly directional antennas are employed in which the maximum power allowed is locked to the precision of the antenna beam.
  • Allows increase in the average equivalent isotropic radiated power (EIRP) limit from 40dBm to 82dBm minus 2dB for every dB that the antenna gain is below 51dBi, and peak EIRP emission limit from 43dBm to 85dBm minus 2dB for every dB that the antenna gain is below 51dBi for outdoor applications.
  • Amended the rules such that the emission limits can now be specified in terms of EIRP, and not power density units.
  • Eliminates the transmitter identification requirement and specification of antenna requirements.

 


Modular Transmitter Certification Update

Question:  We are interested in certifying our modular transmitters.  Where can we find the FCC’s most recent guidance on modular transmitters?

Answer:  The most recent guidance can be found in 996369 D01 Module Certification Guide v01r04, published October 31, 2013, in accordance with 47CFR§15.212.

The primary difference between this new version and the previous version is the movement of the Split Module from the FCC TCB Exclusion List 628591 D01 TCB Exclusion List v15r02, also updated October 31, 2013, to the FCC Permit but Ask (PBA) list 388624 D02 Permit But Ask List v14r01, updated November 5, 2013.

 

EN 300 328 Adequate Spectrum Sharing Mechanism

Clarification - : 

For products entering the EU between now and December 31, 2014, manufacturers can continue to use EN 300 328 V1。7。1, or they can use V1。8。1。  During this period, both versions provide presumption of conformity, however starting January 1, 2015, V1。7。1 will no longer provide presumption of conformity。

 

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:

  • - (11/1/2013) - AC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guidance for installation and operation
  • - (11/1/2013) - AC motor capacitors - Part 2: Motor start capacitors
  • - (11/8/2013) - Consortium bridge - Adoption of third-party specifications as European Standardization Publications
  • - (11/8/2013) - Electrostatic hand-held spraying equipment - Safety requirements - Part 1: Hand-held spraying equipment for ignitable liquid coating materials
  • - (11/8/2013) - Monitoring and alarm receiving centre - Part 1: Location and construction requirements
  • - (11/8/2013) - Monitoring and alarm receiving centre - Part 2: Technical requirements
  • - (11/8/2013) - Monitoring and alarm receiving centre - Part 3: Procedures and requirements for operation
  • - (11/8/2013) - Explosive atmospheres - Part 0: Equipment - General requirements
  • - (11/8/2013) - Medical electrical equipment - Part 1-9: General requirements for basic safety and essential performance - Collateral Standard: Requirements for environmentally conscious design
  • - (11/8/2013) - Mechanical structures for electronic equipment - Thermal management for cabinets in accordance with IEC 60297 and IEC 60917 series - Part 4: Cooling performance tests for water supplied heat exchangers in electronic cabinets

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:

  • - (October 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 35: Specific requirements for Low Power Active Medical Implants (LP-AMI) operating in the 2 483,5 MHz to 2 500 MHz bands
  • - (October 2013) - Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 4: Geographical addressing and forwarding for point-to-point and point-to-multipoint communications; Sub-part 2: Media-dependent functionalities for ITS-G5
  • - (November 2013) - Advanced Surface Movement Guidance and Control System (A-SMGCS); Part 6: Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive for deployed surface movement radar sensors; Sub-part 1: X-band sensors using pulsed signals and transmitting power up to 100 kW
  • - (November 2013) - Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 2: Scenarios
  • - (November 2013) - Intelligent Transport Systems (ITS); V2X Applications; Part 3: Longitudinal Collision Risk Warning (LCRW) application requirements specification
  • - (November 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); System Reference document (SRdoc); Broadband communication links for ships and fixed installations engaged in off-shore activities operating in the 5 GHz to 8 GHz range
  • - (November 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Navigation radar for use on non-SOLAS vessels; Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive
  • - (November 2013) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Short-Range Devices (SRD) for operation in the 13,56 MHz band; System Reference Document for Radio Frequency Identification (RFID) equipment

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:

  • - (October 2013) - Amendment 1 - Specification for radio disturbance and immunity measuring apparatus and methods – Part 4-2: Uncertainties, statistics and limit modelling – Measurement instrumentation uncertainty
  • - (October 2013) - Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-frequency fields
  • - (October 2013) - Corrigendum 2 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
  • - (October 2013) - Medical electrical equipment - Part 1-6: General requirements for basic safety and essential performance - Collateral standard: Usability
  • - (October 2013) - Amendment 1 - Medical electrical equipment - Part 1-6: General requirements for basic safety and essential performance - Collateral standard: Usability
  • - (October 2013) - Medical electrical equipment - Part 2-41: Particular requirements for the basic safety and essential performance of surgical luminaires and luminaires for diagnosis
  • - (October 2013) - Video surveillance systems for use in security applications - Part 1-1: System requirements - General

See for additional information.

FCC - "TCB Exclusion List" Published

On October 31, 2013, the FCC published a revised TCB Exclusion list (628591 D01 TCB Exclusion List v15r02 replaces 628591 D01 TCB Exclusion List v15r01).  This revised TCB Exclusion list has moved UWB and Split Modular Transmitters from TCB Exclusion List to PBA List.

TCBs are excluded from issuing grants of certification for the following equipment types:

  1. Unlicensed National Information Infrastructure (UNII) devices with Dynamic Frequency Selection (DFS) capability (Part 15 Subpart E), including client devices operating in the DFS bands that have radar detection capability.
  2. Implanted transmitters with maximum total available output power > 1.0 mW (all rule parts). Note: Implanted transmitters, regardless of output power, using RF exposure numerical simulation or computational modeling techniques are excluded per the conditions of B 2 (see below).
  3. 700 MHz Band Transmitters (698 to 806 MHz, Part 74).
  4. Television Band Devices (TVBD) (Part 15 Subpart H).
  5. MedRadio transmitters designed to operate in 413-419 MHz, 426-432 MHz, 438-444 MHz, 451-457 MHz, and 2360-2400 MHz bands (Part 95 Subpart I).
  6. Fixed or mobile cable television relay service devices (Part 78 CARS)

TCBs are excluded from issuing equipment certifications for transmitters subject to the following RF exposure conditions and configurations:

  1. RF exposure limits are not fully established or when Sections 1.1307 (c) or (d) applies (unless it is explicitly permitted through a PBA (KDB Publication 388624 D02))
  2. RF exposure evaluations using numerical simulations or computational modeling techniques.
  3. Portable transmitters operating at frequencies below 100 MHz and SAR evaluation is required for TCB approval; or portable transmitters operating at frequencies above 6 GHz and routine RF exposure evaluation is required.
  4. Portable transmitters operating with source-based, time-averaged maximum output power and separation distance requirements exceeding the SAR Exclusion Threshold in KDB Publication 447498 by:7 (a) 8 times or more, for compliance with general population exposure requirements; or (b) 20 times or more, for compliance with occupational exposure requirements; and, when published RF exposure KDB procedures are not established for SAR testing or when SAR data is not provided to support compliance.

FCC - "Permit But Ask" List Updated

On November 5, 2013, the FCC republished its .  The new version captures changes to the Signal Booster requirements clearly.

EU – TGN 18 on Requirements for Test Reports Issued by R&TTE CA

Recently, the R&TTE Compliance Association issued TGN 18, Version 1.0 which is a Technical Guidance Note on the R&TTED requirements for real results in test reports.  This guidance note indicated that test reports must contain the actual test results, not just a pass or fail statement. The R&TTECA feels that full test data is an essential part of the test report, to enable the manufacturer to sign their Declaration of Conformity. It is also essential information for the Notified Body to complete a review of the TCF. Finally, it has been expressed as mandatory information by market surveillance authorities.  

EU - New Acoustic Requirements in EN71-12011 Part 1

On September 14, 2013, Industry Canada released , which states the minimum technical requirements for the efficient use of the frequency bands 25.25-26.5 GHz and 27.5-28.35 GHz by line-of-sight radio systems in the fixed service, including point-to-point and point-to-multipoint systems.


EU: Updated List of R&TTE  and LVD Harmonized Standards

EN71-1 2011 was recently updated with amendment A2:2013 incorporated into the standard.

The major change of A2 is the update to the acoustic requirements of clause 4.20, with new requirements for toys not previously within the scope of testing now included, such as percussion toys and wind toys e.g. drums, whistles, and xylophones. Revised test methods have also been introduced for voice toys such as megaphones and walkie-talkies.

All toys that deliberately produce sounds are now required to be assessed, and have been categorized into 11 product types and 3 exposure categories:
  • Close-to-the-ear toys
  • Table-top or floor toys
  • Hand-held toy
  • Toys using headphones or earphones
  • Rattles
  • Squeeze toys
  • Pull-along or push toys
  • Percussion toys
  • Wind toys
  • Cap-firing toys
  • Voice toys
  • Exposure category 1: Toys emitting sound during time periods typically longer than 30 s after each initiation;
  • Exposure category 2: Toys emitting sound during time periods typically shorter than 30 s but longer than 5 s after each initiation;
  • Exposure category 3: Toys emitting sound during time periods typically shorter than 5 s after each initiation;
Limits have been revised, with some categories of toys now having more stringent acoustic levels than before. Test methods have also been updated.

Gambia - Changes to Type Approval Guidelines

Gambian Regulator PURA has noted some changes to its Type Approval procedures and guidelines recently issued on 7/31/2013.

Changes are as follows:
  1. All Gambia Type Approval certificates issued before 10/30/2013 will expire on 12/31/2015. Certificates issued after 10/30/2013 will expire 2 years after the date of issue. After expiration, Certificate renewal is required.
  2. Test reports to the following standards will be recognized by Gambia Authority under the new guideline:
    • FCC
    • ANSI
    • ETSI
    • ITU
    • IEC
    • ISO
  3. PURA reserves the right to request a sample of the product if they have concerns about interference, EMF, health and safety of the product.

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