We had a discussion about this on the ubnt board. I have a pair of nanobridge M units. No difference was shown with an increase or decrease in power. I did notice at a certain point that after a day the units would completely stop transmitting. A reboot would fix it.
Sent from my iPhone On Jun 24, 2010, at 8:16 AM, Faisal Imtiaz <fai...@snappydsl.net> wrote: > FYI..... > Please make sure that you are running the most recent version 5.2 on the M > series... Older firmware had known issues in setting up the output power. > > Faisal > > On Jun 24, 2010, at 10:06 AM, "Stuart Pierce" <spie...@avolve.net> wrote: > >> I see negligible difference in signal strength anyway between 20 and 27. >> >> ---------- Original Message ---------------------------------- >> From: Francois Menard <fmen...@xittel.net> >> Reply-To: WISPA General List <wireless@wispa.org> >> Date: Thu, 24 Jun 2010 09:03:59 -0400 >> >>> Or you can be legit in Canada, and go for 3.65 GHz and get up to 57 dBM >>> legally in rural areas ;) >>> >>> Courtesy of the guy that changed the rules for 3.65 in Canada and is >>> looking for the US to do the same... >>> >>> F. >>> >>> On 2010-06-23, at 5:41 PM, Fred R. Goldstein wrote: >>> >>>> I'm just a little confused about some of these nice-looking access >>>> points. The UBNT Rocket M5, for instance, can put out +27 dBm. It >>>> plugs *right into* a nice 19dB sector antenna. Okay, the smaller, >>>> 120 dB sector is only 16 dB. Now math is not really my thing but I >>>> get a total ERP there of +43 to 46 dBm. >>>> >>>> FCC Rule 15.247 states that the maximum transmitted power output for >>>> digitally-modulated intentional radiators in the 5725-5850 MHz band >>>> ("ISM") is 1 watt, and the maximum antenna gain is 6 dBi. Each >>>> additional dB of antanna gain means one less dB of power. So the >>>> maximum ERP is 4 watts (+36). >>>> >>>> Point-to-point is an exception in that specific band; it is allowed >>>> unlimited antenna gain. But "point-to-multipoint systems, >>>> omnidirectional applications, and multiple co-located intentional >>>> radiators transmitting the same information" are under the cap. >>>> >>>> So am I correct in assuming that everybody who uses the Rocket M5, or >>>> any other similar PtMP system for subscriber access, turns the >>>> transmitter power REAL low (~+20 + feedline loss), in order to keep >>>> the ERP below +36? Or are we assuming that since you're technically >>>> only transmitting and receiving to one end user at a time, it's really PtP? >>>> >>>> SkyPilot's legal hack, of course, is to have eight 45 degree sector >>>> antennas and only use one at a time, so it is legally PTP even with >>>> +42 EiRP. And with advanced 11N 4x4 beamforming antennas, something >>>> like that will become relatively easy. But we're not quite there >>>> yet. Thoughts? >>>> >>>> -- >>>> Fred Goldstein k1io fgoldstein "at" ionary.com >>>> ionary Consulting http://www.ionary.com/ >>>> +1 617 795 2701 >>>> >>>> >>>> >>>> -------------------------------------------------------------------------------- >>>> WISPA Wants You! Join today! >>>> http://signup.wispa.org/ >>>> -------------------------------------------------------------------------------- >>>> >>>> WISPA Wireless List: wireless@wispa.org >>>> >>>> Subscribe/Unsubscribe: >>>> http://lists.wispa.org/mailman/listinfo/wireless >>>> >>>> Archives: http://lists.wispa.org/pipermail/wireless/ >>> >>> >>> >>> -------------------------------------------------------------------------------- >>> WISPA Wants You! Join today! >>> http://signup.wispa.org/ >>> -------------------------------------------------------------------------------- >>> >>> WISPA Wireless List: wireless@wispa.org >>> >>> Subscribe/Unsubscribe: >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> Archives: http://lists.wispa.org/pipermail/wireless/ >>> >> >> >> >> >> >> ________________________________________________________________ >> Sent via the WebMail system at avolve.net >> >> >> >> >> >> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: wireless@wispa.org >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/