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MultiPoint Newsletter - January 2016

U-NII - Preventing Harmful Interference

Question: We are an OEM manufacturer and would like to certify our Part 15 U-NII device under the FCC’s rules and regulations. What software security do we need to have in place to ensure compliance with the rules for preventing harmful interference?

Answer: In order to comply with the FCC rules and regulations for U-NII devices to prevent harmful interference, the FCC requires that all software controlling radio frequency parameters be secured to prevent modifications to the software, including disabling dynamic frequency selection (DFS) necessary to prevent interference to radars, configuring the U-NII device to operate on unauthorized frequencies, increasing the authorized power levels, etc.

The FCC publication , Software Security Requirements for U-NII Devices, contains a Software Security Description Guide that addresses the software security and third-party software access control requirements, and a Software Configuration Description Guide that deals with user configuration.


Scaling of Resolution Bandwidth (RBW)

Question: We are designing a transmitter to meet the emission mask in accordance with 47CFR§101.111(a)(2)(ii). Can we use a spectrum analyzer with a resolution bandwidth of less than 1 MHz?

Answer: specifies the attenuation in a 1 MHz bandwidth. If you use a spectrum analyzer with a resolution bandwidth (RBW) setting less than 1 MHz, the attenuation specified by the FCC in a 1 MHz bandwidth must be increased by the same dB ratio. To do so, take your RBW setting and apply 10*Log; for example if RBW = 100 kHz, 10*log(1 MHz/100 kHz) = 10 dB. Add the 10 dB as a correction factor to your 100 kHz measurement results.

Note:

  • The video bandwidth (VBW) setting on the analyzer should not be less than the RBW setting. However, use of video averaging is allowed since the mean power of emissions is specified.
  • In general, scaling of RBW is appropriate only when the signal is noise‐like and is relatively flat across the spectrum under measurement. Bandwidth scaling is generally not valid for a continuous wave‐like signal, or even for a noise‐like signal with a lot of ripple in the pass band.

Licensed Amplifier Intermodulation (IM) Products

Question: We are testing an amplifier for FCC licensed certification. What should we pay particular attention to during testing?

Answer:斗地主达人 Without more specifics, we can only provide general advice regarding testing licensed amplifiers for FCC certification. The FCC’s basic application procedures for the certification of licensed radio equipment are contained in and . The basic operational technical requirements are contained in the applicable radio service rules, for example, , , , , , , and ; you’ll need to determine under which rule(s) your amplifier should be certified.

Additionally, a comparison is required of the input modulated spectrum and the output modulated spectrum. This corresponds to the occupied bandwidth test required under .

If your amplifier is capable of handling multiple signals, an intermodulation (IM) test must be performed. IM products are spurious emissions and are covered by the general emissions limitations (mask) in each radio service. This normally refers to the IM products produced by the transmitter/amplifier carrying two or more signals at the same time.

requires that measurements be made for spurious emissions at the antenna terminals while the transmitter (amplifier) is modulated。

Note: The FCC considers an amplifier to be a transmitter. Though 47CFR§2 and many of the licensed radio services do not have specific requirements for equipment authorization of amplifier devices, the FCC nonetheless requires that the IM test(s) be done with three signals of equal magnitude, at their highest rated output level, for each type of modulation.

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.

If the three-signal test cannot be performed because of equipment shortages or other limitations, a two-signal test is acceptable, however the three-signal test is the preferred/primary procedure. When a two-signal test has to be used, both the upper side and the lower side of the band edge must be tested, meaning two tests are made in place of one three-signal test. In either case, you should test all different emission modes that the amplifier will amplify.


Wireless Charging Battery Cover Requirements

Question:斗地主达人 Where can we find information on the FCC requirements for wireless charging battery covers?

Answer: We refer you to , Evaluation and Approval Considerations for Handsets with Specific Wireless Charging Battery Covers, published on December 16, 2015. It identifies the testing and authorization considerations, including information on SAR, EMC and HAC, for certain handsets with provisions to use inductive wireless charging capabilities through an optional battery cover. The charging hardware must be incorporated as an integral part of the battery cover supplied by the handset manufacturer, or it can be obtained as an optional accessory from the handset manufacturer. The procedures described may apply to implementations based on the Qi, PMA, and A4WP wireless power transfer protocols, according to the operating frequencies, receiving coil designs, and communication requirements defined in such industry 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:

  • - 11/20/2015 - Study Report on Electromagnetic Interference between Electrical Equipment/Systems in the Frequency Range Below 150 kHz
  • - 11/20/2015 - Passive filter units for electromagnetic interference suppression - Part 3: Passive filter units for which safety tests are appropriate
  • - 11/20/2015 - Electrostatics - Part 2-1: Measurement methods - Ability of materials and products to dissipate static electric charge
  • - 11/27/2015 - Medical electrical equipment - Part 2-66: Particular requirements for the basic safety and essential performance of hearing instruments and hearing instrument systems
  • - 11/27/2015 - Audio/video, information and communication technology equipment - Part 1: Safety requirements (IEC 62368-1:2014, modified)
  • - 12/11/2015 - Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
  •  - 1/8/2016 - Luminaire performance - Part 1: General requirements
  •  - 1/16/2016 - Household and similar electrical appliances - Safety - Part 2-14: Particular requirements for kitchen machines
  •  - 1/22/2016 - Power line communication apparatus used in low-voltage installations - Radio disturbance characteristics - Limits and methods of measurement - Part 3: Apparatus operating above 30 MHz

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:

  •  - (November 2015) - Short Range Devices (SRD); Medical Body Area Network Systems (MBANSs) operating in the 2 483,5 MHz to 2 500 MHz range; Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU
  •  - (December 2015) - Ground-based VHF hand-held, mobile and fixed radio transmitters, receivers and transceivers for the VHF aeronautical mobile service using amplitude modulation; Part 2: Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU
  •  - (December 2015) - Ground-based UHF radio transmitters, receivers and transceivers for the UHF aeronautical mobile service using amplitude modulation; Part 2: Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU
  •  - (December 2015) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Technical characteristics and methods of measurement for survival craft portable VHF radiotelephone apparatus
  •  - (December 2015) - Portable Very High Frequency (VHF) radiotelephone equipment for the maritime mobile service operating in the VHF bands (for non-GMDSS applications only); Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU
  • - (January 2016) - Commercially available amateur radio equipment; Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU
  • - (January 2016) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Using the ETSI EN 301 489 series of EMC standards
  •  - (January 2016) - Universal Mobile Telecommunications System (UMTS); Base station (BS) and repeater electromagnetic compatibility (EMC) (3GPP TS 25.113 version 13.0.1 Release 13)
  •  - (January 2016) - Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; E-UTRA, UTRA and GSM/EDGE; Multi-Standard Radio (MSR) Base Station (BS) Electromagnetic Compatibility (EMC) (3GPP TS 37.113 version 13.0.0 Release 13)

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:

  • - (12/9/2015) - Electromagnetic compatibility (EMC) - Part 4-16: Testing and measurement techniques - Test for immunity to conducted, common mode disturbances in the frequency range 0 Hz to 150 kHz
  • - (12/9/2015) - Electromagnetic compatibility (EMC) - Part 4-16: Testing and measurement techniques - Test for immunity to conducted, common mode disturbances in the frequency range 0 Hz to 150 kHz
  • - (12/9/2015) - Metallic communication cable test methods - Part 4-7: Electromagnetic compatibility (EMC) - Test method for measuring of transfer impedance ZT and screening attenuation aS or coupling attenuation aC of connectors and assemblies up to and above 3 GHz - Triaxial tube in tube method
  • - (12/14/2015) - Amendment 2 - Electromagnetic compatibility (EMC) - Part 4-13: Testing and measurement techniques - Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity test
  • - (12/16/2015) - Electromagnetic compatibility (EMC) - Part 4-13: Testing and measurement techniques - Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity tests
  • - (1/6/2016) - Electroacoustics - Hearing aids - Part 13: Electromagnetic compatibility (EMC)
  • - (1/7/2016) - Information technology equipment - Safety - Part 22: Equipment to be installed outdoors
  • - (1/7/2016) - Information technology equipment - Safety - Part 22: Equipment to be installed outdoors
  • - (1/7/2016) - Electromagnetic compatibility (EMC) - Calibration and verification protocol for harmonic emission compliance test systems
  • - (1/19/2016) - Process management for avionics - Atmospheric radiation effects - Part 1: Accommodation of atmospheric radiation effects via single event effects within avionics electronic equipment
  • - (1/19/2016) - Fixed capacitors for use in electronic equipment - Part 14-1: Blank detail specification - Fixed capacitors for electromagnetic interference suppression and connection to the supply mains - Assessment level DZ

See for additional information。

US – FCC Form 740

The FCC Office of Engineering and Technology recently issued a to address misconceptions about electronic filing requirements for FCC Form 740 - Statement Regarding the Importation of Radio Frequency Devices Capable of Causing Harmful Interference. Per the Notice, the trade community is to continue to file FCC-required information electronically with U.S. Customs and Border Protection (CBP) via an Automated Commercial Environment (ACE)-Entry Summary, or any other process that may be designated by CBP, until the waiver provision takes effect on July 1, 2016.

US – FCC Publishes New Guidance

On January 6, 2016, the FCC published “.” This document provides basic guidance for intermodulation product spurious emission testing of frequency translating repeater system equipment and similar devices.

Canada – Release of RSP-100, Issue 11 and DC-01, Issue 6

On January 20, 2016, Industry Canada released RSP-100, Issue 11, and DC-01, Issue 6. Radio Standards Procedure RSP-100, Issue 11, Certification of Radio Apparatus, sets out the requirements for certification of radio apparatus and broadcasting equipment. Declaration of Conformity DC-01, Issue 6, Procedure for Declaration of Conformity and Registration of Terminal Equipment, describes the procedure that must be followed by suppliers of telecommunications terminal equipment to declare conformity to applicable technical specifications, and to register their equipment with ISED. Both documents have significantly changed from the previous issues due to the implementation of the Department's new online Spectrum Applications Modernization - Commercial Software Implementation (SAM‑CSI) tool.

斗地主达人Both RSP-100, Issue 11, and DC-01, Issue 6, came into effect on January 21, 2016, when they were published on the Department's 。

Canada – Release of ICES-003, Issue 6 and RSS‑117, Issue 3

On January 19, 2016, Industry Canada released ICES-003, Issue 6 and RSS‑117, Issue 3. Information on both document releases is as follows:

Interference-Causing Equipment Standard ICES‑003, Issue 6, sets out standard requirements for information technology equipment (ITE), including digital apparatus。 Though this document comes into force on January 19, 2016, a transition period of three (3) months following its publication will be provided, within which compliance with ICES 003, Issue 6, or Issue 5, will be accepted。 After this period, only compliance with ICES 003, Issue 6, will be accepted。 The following are the list of changes from Issue 5:

  • Updated Section 2.1 to clarify the definition of an ITE device.
  • Updated Section 2.3 to include storage media.
  • Updated Section 2.4 to clarify applicability of broadcasting equipment.
  • Updated Section 3(b) to reference the latest version of ANSI C63.4-2014.

Radio Standards Specification RSS-117, Issue 3, Licensed Transmitters Operating in the Band 200-535 kHz, sets out the technical requirements for the compliance of radio apparatus operating in the frequency band 200 kHz to 535 kHz. This document came into effect on January 19, 2016, the date it was published on the Department’s . The following are the list of changes from Issue 2:

  • Modernized to reflect the current RSS structure since its last publication in 1974.
  • Emission designators have been updated.
  • Editorial modifications and corrections have been made throughout.

Tanzania – Type Approval Mandatory for Low Power Devices

Our local agent recently confirmed that the Tanzanian Communications Regulatory Authority (TCRA) now requires Type Approval for radio communication equipment operating in ISM frequency bands and below 100mW。 Previously, such devices were exempt from Type Approval。 Low Power Devices already being sold and imported into Tanzania (and already have notification letters from the TCRA) require no further action。

Armenia - Products Requiring National Approval

In October 2015, we reported Armenia’s adoption and harmonization of Customs Union Technical Regulations on EMC and Safety. As of January 2, 2016, it has been further clarified that the Armenian National Approval is still required for radio equipment and telecommunications terminal equipment falling under HS codes 8517 61 000, 8517 62 000 and 8525 50 000 until further notice. Please note that national level Approval for this tariff group listed below removes the need for CU compliance. Equipment falling under the aforementioned HS Codes include the following:

  • base stations;
  • sound, image or other data reception, transition devices including switching devices and routers and network equipment;
  • transmitting equipment and receiving devices.

Argentina – New Type Approval Regulator

Recently, due to governmental changes, the Argentine Regulator Autoridad Federal de las Tecnologías de la Información y las Comunicaciones (AFTIC) has been merged with Autoridad Federal de Servicios de Comunicación Audiovisual (AFSCA) to form Ente Nacional de Comunicaciones (ENACOM)。 ENACOM is the new Argentine Regulator going forward。 There are no immediate changes to the Type Approval process and it is understood that products which have already obtained Type Approval in Argentina under the AFTIC approval scheme are not affected and remain valid。 Current applications under review at AFTIC will continue to be reviewed as normal but may experience a delay during the transition process。 No further information has been released regarding changes to the Type Approval process or labelling requirements。

Mexico - NOM-EM-016-SCFI-2015 Adopted and Operational

Mexican test laboratories and Certification Bodies have now received full accreditation to test samples and file Type Approvals under the Mexican emergency standard NOM-EM-016-SCFI-2015, which applies to all devices which operate on the frequency bands 2400-2483.5 MHz, 5725-5850 MHz and 902-928 MHz. We understand there is no impact to the lead-time of the certification process or changes to the process itself. However, there will be a small increase in the overall certification costs for new Type Approval applications filed in accordance with NOM-EM-016-SCFI-2015. There is no impact to any products approved under NOM-121-SCT1-2009, before October 19th 2015. Additionally, renewal applications can still be filed for Approvals issued under NOM-121-SCT1-2009.

Chile - Stricter Type Approval Review

The Chilean Regulator, Subsecretaría de Telecomunicaciones (SUBTEL), has introduced stricter requirements in its review of Type Approval applications. As of January 1, 2016, SUBTEL is no longer accepting Frequency Declarations or User Manual statements to show that devices will be restricted to conform to Chilean Regulation Resolución 755. New Type Approval applications with greater output powers than permitted in Chile as stated in Resolución 755 (e.g. the indoor output power limits for the following bands is 150 mW: 2400-2483.5 MHz; 5150-5250 MHz; 5250-5350 MHz and 5725-5850 MHz) will automatically be rejected. Devices already approved are not affected by this change, providing the output power continues to be restricted to conform to the Chilean standards.

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