Fielding questions for Wireless manufacturers is one of the many activities that we perform at ACB. Packets provides an overview of a small portion of the communiqués that run in and out of our office.
Please note that the following represents, in most cases, technical opinions with justification in FCC Requirements, the particulars of the product must be considered. Thus, we welcome a call or email if you have any special needs or questions.
This would be true regardless of the form factor of the device.
Since the issue is with respect to a PCMCIA card, it becomes more complicated because you may have some configurations which will be "Mobile" and others which may be "Portable" from the perspective of RF Exposure. The inclusion of one antenna in the "Mobile" RF Exposure category may prohibit it’s use in "Portable". To date, the Commission is reluctant to allow one FCC ID to cover both "Mobile" and "Portable" configurations of the same product.
Most of South America - will accept FCC report. Africa, Mid East, Eastern Europe, Russia, require ETSI/EN report.
Market/Region: US Applicability: 5150-5250 MHz, 5250-5350, MHz5725-5825 MHz
Market/Region: EU Applicability: 5150-5350 MHz & must also operate in 5470-5725 MHz. Hyperlan standard—not 802.11a Now allows 802.11a without TPC or DFS on a country–by–country basis
Market/Region: Eastern EU, Africa, Mideast Applicability: Currently no 5 GHz allocated in some countries- some awaiting results of WRC-03 conference next year
Market/Region: Japan Applicability: 4.9-5.025 GHz, 5250-5350 MHz Std 33a and 66
Market/Region: China Applicability: No 5 GHz Band 5725-5825 MHz has been adopted 5150-5350 MHz under consideration
Market/Region: Malaysia Applicability: No 5 GHz Band 5150 – 5350 MHz under consideration 5725-5850 MHz under consideration
Market/Region: Korea Applicability: 5725- 5825 MHz, 5150-5350 MHz under consideration
Market/Region: Hong Kong Applicability: 5725-5850 MHz, 5150-5350 MHz under consideration
First, an integral-antenna PCMCIA card is a portable device. Modular approval has not been required for all PCMCIA cards. The FCC is still working on other policies, including possible host-independent criteria.
The following general points are critical when discussing these types of devices:
Out of band emissions can use the average limit below 1 GHz. Section 15.407(b)(4) refers to in band peak power and not out of band emissions.
Section (6) deals with spurious emissions. Though the reading must be recorded with a peak detector; under Section15.407 (b)(4) stipulates though a 1 MHz band width is required for this test, a lower resolution near the band edge may be used if necessary, provided the measured energy is integrated to show the total power over 1 MHz.
The plots provided should be taken using both an average detector and a peak detector.
Proper measurements at the band edge may require the use of a delta type measurement as described in FCC Docket 96-8, which can be downloaded from the FCC web site at:
General Spectrum Issues: The FCC recently closed the comment period on Public Notice 92-135 in which it was seeking comments on Spectrum Issues in general. The FCC Spectrum Task Force hopes to issue a full report by mid October on various spectrum issues. Please check www.fcc.gov for this report.
Higher Frequencies: The FCC has released NPRM 02-142 addressing licensed and unlicensed operation in 71-76 GHz, 81-86 GHz and 92-95 GHz band. Comment period is 90 days from the publishing in the Federal Register. The FCC is considering allocating about 1200 MHz of spectrum for unlicensed use in the 92-95 GHz bands.
Radar Detectors: The FCC has modified Part 15 rules requiring certification for Radar Detectors Receivers operating at frequencies greater then 960 MHz. This is a new category of receivers that now require certification.
Industry Canada comment period for their spectrum plan ended Sept 2nd of this year. Information on this proceeding can be obtained from the Industry Canada web page at http://spectrum.ic.gc.ca
The comment period for adoption of the new EMR standard was July 31st. Currently the Australians have postponed adopting new requirements. Currently under study is the adoption of the international recommendations and requirements
China has rolled back the adoption of their proposed EMR standard until further information can be gathered. This standard would have been one of the tightest limits to meet and would have forced manufacturers to reduce power for mobile and portable transmitters. The MII is postponing adoption until additional studies on EMR limits are complete.
China has also rolled back it’s power limitation of 10mW for 2.4GHz radios and now will approve systems with power up to 100mW EIRP. Systems are restricted to indoor use only.