On Wed, Nov 17, 2010 at 2:03 PM, John W. Linville <linville at tuxdriver.com> wrote: > Ping? Michael? Luis > On Mon, Oct 25, 2010 at 03:55:00PM -0700, Luis R. Rodriguez wrote: >> Adding Michael and the wireless-regdb list. Please use that list for >> further reviews. >> >> ?Luis >> >> On Mon, Oct 25, 2010 at 2:37 PM, Robert Gr?nning <slimg at iggu.org> wrote: >> > It seems like NO is wrong according to Norwegian rules >> > >> > This is how NO currently looks like in wireless-regdb-2009.11.25.tar.bz2 >> > -------------------START------------------- >> > country NO: >> > ? ? ? ?(2402 - 2482 @ 40), (N/A, 20) >> > ? ? ? ?(5170 - 5250 @ 40), (N/A, 20) >> > ? ? ? ?(5250 - 5330 @ 40), (N/A, 20), DFS >> > ? ? ? ?(5490 - 5710 @ 40), (N/A, 27), DFS >> > --------------------END-------------------- >> > >> > This is what the Norwegian rules say about general usage of frequencies >> > for wi-fi: >> > Note: The following text is a translation from a subsection of the >> > following document written in Norwegian: >> > http://www.lovdata.no/for/sf/sd/xd-20090602-0580.html#7 >> > -------------------------------------START-------------------------------------- >> > (3) the frequency band 5150-5350 MHz is authorized for indoor data >> > transfer >> > including radio-based local area networks (WAS / RLAN) with a maximum >> > radiated >> > power of 200 mW eirp the frequency use defined in the standard EN 301 893 >> > If any >> > other use than indoor use, the average spectral density in the frequency >> > band >> > 5150-5350 MHz is limited to 10 mW / MHz eirp in any 1 MHz range. >> > >> > (4) the frequency band 5470-5725 MHz may be used for data transfer with >> > maximum >> > radiated power of 1 W eirp Maximum average spectral density shall not >> > exceed >> > 50 mW / MHz eirp in any 1 MHz band. The radio equipment shall implement >> > transmit >> > power control (TPC) which provides an average attenuation of at least 3 >> > dB. If >> > TPC is not in use, the maximum allowed radiated power and power density is >> > 3 dB >> > lower than that following the first and second sentence. The radio >> > equipment will >> > use Dynamic Frequency Selection (DFS) as specified in the standard EN 301 >> > 893 >> > >> > (5) The frequency bands 5725-5795 MHz and 5815-5850 MHz for data transfer >> > with >> > maximum radiated power of 4 W eirp Maximum average spectral density shall >> > not >> > exceed 200 mW / MHz eirp in any 1 MHz band. The radio equipment shall >> > implement >> > Dynamic Frequency Selection (DFS) as specified in the standard EN 302 502 >> > Radio >> > equipment shall transmit power control (TPC) which provides an average >> > attenuation of at least 3 dB. If TPC is not in use, the maximum allowed >> > radiated >> > power and power density is 3 dB lower than that following the first and >> > second >> > sentence. On the border between Norway and neighboring power density shall >> > not >> > exceed -122.5 dBW / m 2 measured with a reference bandwidth of 1 MHz >> > unless >> > otherwise stated in the coordination agreement. >> > >> > (6) The frequency bands 5725-5795 and 5815-5850 MHz for point-to-point >> > radio >> > links with maximum radiated power of 200 W eirp Maximum permitted power >> > supplied >> > antenna is 1 W. The maximum average spectral density shall not exceed 10 W >> > / MHz >> > eirp in any 1 MHz band. The concept of point-to-point radio links exclude >> > all >> > forms of point-to-multipoint, omnidirectional systems and transmitters >> > send the >> > same information located in the same place (sector antennas). The radio >> > equipment >> > shall implement Dynamic Frequency Selection (DFS) as specified in the >> > standard >> > EN 302 502 On the border between Norway and neighboring power density >> > shall not >> > exceed -122.5 dBW / m 2 measured with a reference bandwidth of 1 MHz >> > unless >> > otherwise stated in the coordination agreement. >> > --------------------------------------END--------------------------------------- >> > >> > Here is the link to google english-translated section mentioned above: >> > http://translate.googleusercontent.com/translate_c?hl=no&sl=no&tl=en&u=http://www.lovdata.no/for/sf/sd/xd-20090602-0580.html&rurl=translate.google.com&usg=ALkJrhhGbQPtCjONnilyHdAgh1NwIZhFVA#7 >> > >> > According to that documentation, NO should probably look like this >> > instead: >> > -------------------START------------------- >> > country NO: >> > ? ? ? ?(2400 - 2483.5 @ 40), (N/A, 20) >> > ? ? ? ?(5150 - 5350 @ 40), (N/A, 23) >> > ? ? ? ?(5470 - 5725 @ 40), (N/A, 27), DFS >> > --------------------END-------------------- >> > >> > Question 1: >> > The norwegian laws also says that if TPC is available, then the maximum >> > allowed TX power >> > of the 5470 -> 5725 MHz frequency range changes from 27 dBm to 30 dBm, I >> > don't know how to write that in wireless-regdb. >> > >> > Question 2: >> > The norwegian laws for the 5470 -> 5725 MHz frequency range seem to exceed >> > the European restrictions in 802.11n-2009, I'm guessing that the upper 5725 >> > MHz frequency needs to be decreased to comply with the European >> > restrictions? if so, I'm not sure what frequency it should be decreased to. >> > >> > Question 3: >> > The norwegian documentation also mentions these radio frequencies for >> > wireless data transfer: >> > ?* 5725 -> 5795 MHz and 5815-5850 MHz: point-to-point radio links >> > ?* 17,1 -> 17,3 GHz: >> > ?* 57 -> 66 GHz: >> > Does these belong in the wireless-regdb as well? >> > >> > I hope my limited knowlege doesn't cause anyone unreasonable much work, >> > I'm really trying to get better at this. >> > >> > -Robert Gr?nning (Norway) >> > -- >> > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in >> > the body of a message to majordomo at vger.kernel.org >> > More majordomo info at ?http://vger.kernel.org/majordomo-info.html >> > >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in >> the body of a message to majordomo at vger.kernel.org >> More majordomo info at ?http://vger.kernel.org/majordomo-info.html >> > > -- > John W. Linville ? ? ? ? ? ? ? ?Someday the world will need a hero, and you > linville at tuxdriver.com ? ? ? ? ? ? ? ? ?might be all we have. ?Be ready. >
