Lower your transmit power, duh. You go a hell of a lot further with a 0 db radio and 36 db of antenna than 30 db of radio and 6 db of antenna. That do you think negative db values are for?
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Matt Hardy" <mha...@ligowave.com> Sent: Saturday, March 07, 2009 7:41 AM To: "WISPA General List" <wireless@wispa.org> Subject: Re: [WISPA] 3.65 ptp > Yes for the 3.65GHz band, antenna gain does matter, because the band is > EIRP restricted. For instance, for the XR3, if you look on the grant: > > https://fjallfoss.fcc.gov/oetcf/eas/reports/Eas731GrantForm.cfm?mode=COPY&RequestTimeout=500&application_id=930658&fcc_id=SWX-XR3B > > The maximum output (in watts) is 4.2, 4.7, and 4.7 for emission > designators (4M24D7D,8M44D7D,17M2D7D), or 5/10/20 MHz channel bandwidths > respectively. Thats ~ 36dBm total *EIRP* > > If you look at the test report: > https://fjallfoss.fcc.gov/prod/oet/forms/blobs/retrieve.cgi?attachment_id=900106&native_or_pdf=pdf > (Page 36) > It shows the max tx power tested by the FCC Lab which still met spectral > density requirements. If you are using the XR3 at the allowed max > txpower (~18dBm), you must use less than or equal an 18dBI antenna. > (This should be specified in the user manuals you received when you > purchased the XR3) > > Hope that helps... > > -Matt > > rea...@muddyfrogwater.us wrote: >> Antenna gain does matter. >> >> UBNT has only one certified antenna combination - or did back when I >> first >> filed for the license. Useful only for P2P, actually. >> >> You have to specificy EIRP, which UBNT's grant details, using the antenna >> specified. >> >> >> >> >> >> ++++++++++++++++++++++++++++++++ >> <insert witty tagline here> >> >> ----- Original Message ----- >> From: "Mike Hammett" <wispawirel...@ics-il.net> >> To: "WISPA General List" <wireless@wispa.org> >> Sent: Friday, March 06, 2009 9:38 PM >> Subject: Re: [WISPA] 3.65 ptp >> >> >> >>> Not mine, but.... >>> >>> http://wireless2.fcc.gov/UlsApp/UlsSearch/licenseLocDetail.jsp?keyLoc=15533393&licKey=2969764&rsc=NN >>> >>> That's a Ubiquiti XR3. It doesn't say Mikrotik or Star-OS or Ikarus >>> or.... >>> because it doesn't matter. Nor does antenna gain. >>> >>> >>> ----- >>> Mike Hammett >>> Intelligent Computing Solutions >>> http://www.ics-il.com >>> >>> >>> >>> -------------------------------------------------- >>> From: "John Scrivner" <j...@scrivner.com> >>> Sent: Friday, March 06, 2009 8:34 PM >>> To: "WISPA General List" <wireless@wispa.org> >>> Subject: Re: [WISPA] 3.65 ptp >>> >>> >>>> So Reader, are you saying you have a 3.65 GHz license and have >>>> registered your 3.65 GHz access points and end user locations through >>>> the FCC ULS? I did not recall seeing a Star OS 3.65 FCC certified >>>> system. You are required to use FCC certified equipment and to >>>> register every AP and customer location using this band. If you do not >>>> then you are breaking the law. Since you are using WISPA list >>>> resources to discuss this as a system option for 3.65 GHz I expect to >>>> see a full answer from you here on this. >>>> Scriv >>>> >>>> >>>> >>>> >>>> On Tue, Mar 3, 2009 at 10:42 AM, <rea...@muddyfrogwater.us> wrote: >>>> >>>>> I am. >>>>> >>>>> Works ok. Using Star-OS. I use "ok" to designate an unenthusiastic, >>>>> but >>>>> affirmative statement that it works. 3.65 seems to have unique >>>>> propagation qualities that are affected by snow, rain, and fog, moreso >>>>> than >>>>> 5 or 2.4. >>>>> >>>>> Or, that's how it seems. >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> ++++++++++++++++++++++++++++++++ >>>>> <insert witty tagline here> >>>>> >>>>> ----- Original Message ----- >>>>> From: "Brian Rohrbacher" <br...@reliableinter.net> >>>>> To: "Conversations over a new WISP Trade Organization" >>>>> <wireless@wispa.org> >>>>> Sent: Tuesday, March 03, 2009 7:29 AM >>>>> Subject: [WISPA] 3.65 ptp >>>>> >>>>> >>>>> >>>>>> Anyone using 3.65 for ptp? What is available? Can ubiquiti's cards be >>>>>> used in mikrotik? >>>>>> >>>>>> brian >>>>>> >>>>>> >>>>>> -------------------------------------------------------------------------------- >>>>>> 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/ >>>> >>>> >>> -------------------------------------------------------------------------------- >>> 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/ > -------------------------------------------------------------------------------- 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/
