I have been working on this a little bit with Jack and some other people, and we had a few questions submitted directly to the FCC, to verify some of these exact questions, here are there responses:
*Inquiry:* I am trying to fully understand the procedures for getting a radio device certified for used as a registered base station under the new 3650-3700 rules. I know this device is only allowed to operate in the lower 25mhz. The device in question is fcc id: SWX-XR3B. What procedures do I need to take, to allow me to use this in a single board computer, as a Access Point (Base station)? SBC: Routerboard 333 http://routerboard.com/pdf/rb333b.pdf Radio Device: http://ubnt.com/products/xr3.php Thanks, Kyle Duren *Response: * Since the device is already certified, it can be installed into a final basestation without further approval, as long as the FCCID label is attached on the outside of the final product. However, if your company wishes to obtain it's own FCC number for the final product, then you must apply for an original FCCID. #2 *Inquiry:* ---*Reply from Customer on 04/29/2008*--- The grant issued for this device lists this: This device incorporates a restricted contention based protocol. It is not capable of avoiding co frequency interference with devices using all other types of contention-based protocols. Operation is restricted to the 3650-3675 MHz band. Yet using this device, which is a 802.11g device, includes support for CSMA/CD, which is a method of detecting and avoiding interference with other devices. Doesn't this meet the requirements set forward in part90.7? Thanks, Kyle Duren *Response: * We will not issue unrestricted use approval until the 802.16h and 802.19 protocol standards are finalized. 802.16h = Improved Coexistence Mechanisms for License-Exempt Operation (http://en.wikipedia.org/wiki/IEEE_802.16) 802.19 = More Coexistence Stuff (http://en.wikipedia.org/wiki/IEEE_802.19) ------------- Now #2 is only being asked, in regards to the grant aproval actually given to the XR3, since there was much discussion before hand, on how the wi-fi band would meet these rules, whereas WiMax would not. Grant can be found here: https://fjallfoss.fcc.gov/oetcf/eas/reports/Eas731GrantForm.cfm?mode=COPY&RequestTimeout=500&application_id=930658&fcc_id=SWX-XR3B or here, if that didnt come across correctly: *http://tinyurl.com/5alnkl ------------- *ARC Wireless does make a nice antenna/enclosure, for the 3.65ghz range, although Im not sure who has it in stock. ----------- Label examples and such can be found here: http://fjallfoss.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?id=27980&switch=P To me it seems like using the "Assembled with tested components" makes the most sense, since thats totally true, the "system" has not been certified, just the radio device within the system. ------------- Details on channels and conversion frequencies: "Channel Freq Driver Freq Real Channel Width Support ChannelA 5765MHz 3658MHz 5/10MHz ChannelB 5770MHz 3663MHz 20/10/5MHz ChannelC 5775MHz 3668MHz 5/10MHz 3 channels is not a lot; but the best that can be done with only 25MHz of bandwidth and the band edge rules of the 3.65GHz band." from [EMAIL PROTECTED], who is in charge of the XR3 compliance stuff. ------- The statement about which card to buy: There are 3 versions of this card, as far as I know, they follow.... XR-3-2.8 = 2.70ghz - 2.90ghz XR-3-3.5 = 3.400ghz - 3.7ghz **XR3-3.5 is a General Purpose Engineer Card that can be used toqualify performane up to 3.7GHz** XR-3-3.7 = 3.65ghz - 3.7gh (FCC Part90 Compliant card) I do NOT know what the differences in appears on these cards might be, but if its marked with the SWX-SR3B FCCID sticker, I would assume it is the correct 3.65ghz radio card. None of the other models should actually have that fcc, since they are not approved for those other ranges. They are mostly for export outside the US, much like the XR7 card (760mhz-780mhz) --------------- Also from what I have "heard" (cannot back up with fact) Ubiquiti is working on a LS3, or PS3 or NS3 style radio, and also a LS9 or PS9 radio (This one is for sure, it is in beta tests currently, checking its compatibility with the XR9/SR9 existing networks) Hope that clears a few things up, Kyle Duren -------------------------------------------------------------------------------- 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/
