An Insider Blog from Leaders on EMC & Radar Engineering
On February 23, 2017, Industry Canada released RSS-247, Issue 2 Digital Transmission Systems (DTSs), Frequency Hopping Systems (FHSs) and Licence-Exempt Local Area Network (LE-LAN) Devices, replacing RSS-247, Issue 1, dated May 2015. Changes to Issue 2 are as follows:
- new section 3.3: state the requirement for emissions that fall within restricted frequency bands to comply with the provisions in RSS-Gen, General Requirements for Compliance of Radio Apparatus;
- section 5.4(b): reinstated the former e.i.r.p. limit for frequency hopping systems operating in the band 2400-2483.5 MHz, which employ a hopset with less than 75 channels
- section 6.2: add a clarification to ensure that emissions that fall within restricted frequency bands shall comply with the provisions in RSS-Gen
- section 6.2: state the measurement method for power and unwanted emission limits for licence-exempt local area network devices and digital transmission systems operating in the 5 GHz band
- section 6.2.1 and 6.2.2: add a provision to allow original equipment manufacturer (OEM) devices installed in road vehicles to operate in the band 5150-5250 MHz with an e.i.r.p. limit of 30 mW or 1.76 + 10 log10B, dBm, whichever is less stringent;
- section 126.96.36.199: clarify the requirement for devices operating in the band 5150-5250 MHz, which have bandwidth that falls into the band 5250-5350 MHz;
- section 188.8.131.52 (b): permit the requisite "for indoor use only" notice for equipment operating in the band 5250-5350 MHz to be included in the user manual;
- section 184.108.40.206: apply the requirement of e.i.r.p. at different elevations for equipment operating in the band 5250-5350 MHz to outdoor fixed devices only;
- section 220.127.116.11: limit e.i.r.p. of OEM devices installed in road vehicles to 30 mW or 1.76 + 10 log10B, dBm, whichever is less stringent;
- section 18.104.22.168: allow equipment, other than outdoor fixed devices, operating in the band 5250-5350 MHz having e.i.r.p. greater than 200 mW to either comply with the e.i.r.p. elevation mask or to include a firmware feature to reduce their e.i.r.p. permanently should it be requested by the Department;
- section 22.214.171.124: allow equipment operating in the band 5650-5725 MHz with bandwidth overlapping the band 5725-5850 MHz to meet the emission limit of −27 dBm/MHz e.i.r.p. at 5850 MHz;
- section 126.96.36.199: modify the unwanted emission limits for LE-LAN devices and DTSs operating in the band 5725-5850 MHz;
- section 188.8.131.52: add a transition date for certification of LE-LAN devices and DTSs operating in the band 5725-5850 MHz to have unwanted emissions comply with either provisions in section 5.5 or section 184.108.40.206;
- section 6.2.4(b): add a transition date for manufacture, importation, distribute, lease, offer for sales, or sales of LE-LAN devices and DTSs operating in the band 5725-5850 MHz which do not comply with provisions in section 6.2.4(b); and
- Annex A: delete the word "pre-installation" to clarify that the verification of e.i.r.p. compliance at different elevations for devices operating in the band 5250-5350 MHz needs to be done at the time of certification (before installation); the verification of compliance must be submitted with the test report for equipment requiring certification.
Please contact Rhein Tech Laboratories, Inc. for any questions and/or testing requirements. 703. 689. 0368 or email sales @ rheintech.com.
Upcoming Free Seminar - 4/6/17 in Columbia, MD: Troubleshooting EMI: Identify, Characterize, and Prevent Electromagnetic Interference ProblemsPosted on February 22nd 2017 by Shelley Grandy
Troubleshooting EMI with Lee Hill, SILENT Solutions LLC, Hosted by Rohde & Schwarz
Join this highly focused one-day seminar and learn how to uncover, characterize, and solve the most elusive EMI problems. Troubleshooting and localizing intermittent signals or multiple layers of broadband and narrowband signals can be frustrating even for the most seasoned EMC troubleshooter and RF engineer. We will discuss and demonstrate a number of test setups that can help the root causes of EMC test failures and then demonstrate how real-time analysis can literally make previously-hidden signals leap into plain view.
This seminar is intended for engineers and technicians involved in the development, troubleshooting, pre-compliance testing and certification of electronic products, systems and assemblies for EMC. Link to signup
Effective on February 14, 2017, Vietnam’s Ministry of Information and Communications (MIC) newly released Circular 46/2016/TT-BTTTT came into effect. Please see below for important changes found in the new Circular:
- Output power limit for WLAN products operating in 2400 – 2483.5 MHz is increased from 100 mW to 200 mW.
- For UHF RFID, the band 920-925 MHz is changed to 918-923 MHz.*
- Wireless charging technology is permitted on the following frequency bands: 9 - 148.5 kHz, 326.5 kHz, 340 kHz, 6.765 - 6.795 MHz.
- 924-925 MHz is no longer available for Cordless Telephones.
- A new band of 4200-4800 MHz is allocated to ultra-wide band devices.
- New bands are allocated to frequency alerting and detecting devices.
- New bands are allocated to wireless audio devices for hearing assistance.
- New bands are allocated to Equipment Automatic Identification (AIS).
- New bands are allocated to Automatic identification equipment development report for search and rescue (AIS-SART).
All RFID products currently approved for and using the band 920-925 MHz are allowed to be continuously imported, distributed and used in Vietnam until the expiration dates of their respective Type Approval certificates. There is no impact on existing Type Approval certificates issued based on current Circular 03. For new applications, Type Approval certificates will be granted based on the Circular 46.
Indonesia’s Direktorat Jenderal Sumber Daya dan Perangkat Pos dan Informatika (SDPPI) recently indicated that a new policy is under consideration whereby paperwork only will be required for Indonesia’s Type Approval process. This new policy is expected to run in parallel with the current Type Approval process in place whereby local testing is conducted. Manufacturers will then have the option to proceed with either the new paperwork-only process or the existing local testing process. This new policy has not yet been published or released, but is expected to come into force in 2017.
Manufacturers of wireless devices sold in Europe need to be aware of an important date this June. Effective June 13, 2017, the Radio Equipment Directive 2014/53/EU (AKA the “RED”) becomes mandatory. Products placed on the EU market as of that date must comply with the RED; the R&TTE Directive will no longer be valid.
When a manufacturer assesses compliance of radio equipment under the essential requirements of RED Articles 3.2 and 3.3 and harmonized standards are (1) applied only in part, (2) available but not applied, or (3) are not available, then it is mandatory for that manufacturer to use a Notified Body (NB) for review of the “technical documentation” (previously known as the Technical Construction File/TCF under the R&TTE Directive) and issue a “Type Examination Certificate”.
Many standards for the RED are not yet reedy; that is, they are either only available in draft format, not yet harmonized or not yet listed in the Official Journal of the European Union (OJEU). This fact will force many manufacturers to engage a Notified Body.
Rhein Tech Laboratories can assist you by reviewing your products, existing test reports and Declarations of Conformity, and determining which RED standards are applicable and identifying testing (or additional testing if test reports already exist). We will then work with our Notified Body, American Certification Body (ACB), to review technical documentation and issue Type Examination Certificates if applicable.
To find out more, please contact Rhein Tech Laboratories, Inc. at sales @ rheintech.com or call us at 703.689. 0368.
The new RED version of EN 300 328 was recently published in the Official Journal; covering wideband transmission systems operating in the 2.4GHz band such as Bluetooth, Zigbee, and WiFi.
This new version includes the following significant updates:
- Inclusion of Receiver Blocking as a new requirement.
- Inclusion of an alternative test method for Power Spectral Density.
- Reduction of minimum number for hopping frequencies for non-adaptive FHSS equipment.
Manufacturers are required to update any Declarations of Conformity (DoC) based on version of EN 300 328 earlier than V2.1.1
This article is from American Certification Body website and provides helpful Q/A regarding the upcoming RED. Link to original article
American Certification Body (NB Number 1588)is notified under the Radio Equipment Directive (2014/53/EU) and EMC Directive (2014/30/EU). We have received many questions about the upcoming Radio Equipment Directive. The following is a summary of some of those “Frequently-Asked-Questions.”
1. Q. What is covered by the Radio Equipment Directive (RED)?
A. A radio transmitter, or receiver, or transceiver, which is used for radio communication or radio determination. It does not include transmitters used for other purposes, such as heating, cutting, treating materials, etc.
2. Q. What radio equipment is NOT covered by the RED?
A. Annex I of the RED covers equipment that is NOT covered by the RED. In general, equipment intended by radio amateurs is exempt. In addition, marine equipment and airborne equipment.
3. Q. When is the RED required?
A. After June 12, 2017. Up until that time, both the R&TTED or RED can be used. From June 13, 2017 and on, only the RED is allowed.
4. Q. What about products that use the RTTED?
A. From June 13, 2017, all products that are already physically in the market (in retail stores or in the supply chain that is not controlled by the manufacturer) can still be used or sold on to a final user. Any product that is placed on the market after June 13, 2017, must comply with the RED.
On December 6, 2016, Mexico’s IFETEL announced its new procedure to obtain IFT-008 certificates for spread spectrum products (frequency bands of 2.4 GHz, 5725-5850 MHz and 902-928 MHz) will be similar to the past procedure with the following steps:
1. Test the sample in an accredited lab.
2. Submit the test report and application to NYCE and pay NYCE fee as normal.
3. NYCE will issue the CoC certificate, which in this case will be an IFT-008 CoC certificate until NOM-208 is enforced.
4. Submit the NYCE IFT-008 certificate to IFETEL and pay IFETEL fee.
5. IFETEL will issue IFT-008 certificate 4 to 6 weeks later.
Once NOM-208 is enforced, all products must have a NOM-208 certificate prior to importation.
As of December 1, 2016, China’s SRRC will no longer require Type Approval for Low Power Short Range devices, and no certificates will be issued for these devices. However, it should be noted that Bluetooth and WLAN devices are still subject to SRRC Type Approval.
Recently, the Pakistan Telecommunication Authority (PTA) published a list of devices exempt from Type Approval. The listed devices do not require type approval/no objection letter (NOC) from PTA, and may be directly imported as per customs procedures. The list includes the following devices:
• Networking Equipment (switches, firewalls, servers, storage devices)
• Laptops/Desktops/Personal Computer (PC)
• Tablet PC with Wi-Fi-only functionality (non-SIM based devices)
• GPS-only devices
• Smart watches with Bluetooth/Wi-Fi functionality only (without SIM or tracking features)
• 13.56 MHz RFID/Bluetooth/NFC devices
India is becoming stricter with its requirement that all foreign applicants set up a liaison office or branch office located in India which meets all liabilities and obligations with respect to the BIS Act, 1986, and the Rules and Regulation for the purpose of registration, on behalf of the foreign manufacturer. Therefore, if a foreign manufacturer has a local office in India, they must nominate a member from the local office to act as the Authorized Indian Representative (AIR).
On January 13, 2017, the European Commission published in the Official Journal of the European Union an updated, consolidated list of harmonized standards for the R&TTE Directive (RED); go to RED - 2014-53-EU - Harmonized Standards
Tonga’s Ministry of Information & Communication (MIC) issued an Official Guideline requiring all communication equipment with radio or satellite technology to be type approved by MIC prior to being imported and marketed for use in Tonga. The following equipment is exempted from the requirement:
• Laptops, personal computers, tablets, and car radios with short range radio technology such as Wi-Fi and Bluetooth
• Digital displays or LCD screens for digital cameras, printers, car audios
• Receiver-only radio equipment intended to be used solely for the reception of sound (radio) and terrestrial TV broadcasting services, including satellite dishes and aerials
• Short range (50 meters) infrared remote control equipment, including TV remote controls, toys, car door openers, garage door openers, etc.
• Terminal equipment used by licensed radio amateurs for personal use
We were recently asked how can one determine if a test laboratory is accredited to ISO/IEC 17025 or if it is 2.948-listed. Our reply follows:
You can determine the current status of your test laboratory as it relates to this issue by going to this link, Equipment Authorization System Test Firm Search, which permits you to find a test laboratory which is authorized by the FCC to perform compliance testing. You may either follow the prompts on the screen, or you may download files of 2.948-listed and accredited test firms.
Please note that a test facility currently 2.948-listed may be in the process of obtaining ISO/IEC 17025 accreditation, or scheduling an assessment, neither of which are reflected on this site, so we recommend you contact the facility directly to confirm their status.
The accreditation and recognition of a test site applies to a specific test facility. All testing, including testing by external resources and subcontracted testing, must be performed at an accredited test facility that is recognized by the FCC.
If your device is tested at more than one site, the test report should specify what tests were performed at which locations.
After October 12, 2017, if testing is performed at a non-accredited site, the test results and test report will not be accepted, even if an FCC accredited testing laboratory reviewed and deemed the results acceptable.