Forbes, Historically, The FCC has usually grandfathered pre-existing installations, to protect those that have already deployed equipment. You have 250Mhz available today between 5.4g and 5.7g. My recommendation is.... If it works use it. If you have a airport radar system near by dont.
Tom DeReggi RapidDSL & Wireless, Inc IntAirNet- Fixed Wireless Broadband ----- Original Message ----- From: Jack Unger To: WISPA General List ; memb...@wispa.org Sent: Saturday, November 21, 2009 1:16 PM Subject: Re: [WISPA] 5.6 GHZ? IMO, it is "iffy" for the reason you mentioned. The FCC (at the request of the FAA and the NTIA) appears ready to deny use of the 5.6 spectrum in areas where interference with airport weather radar takes place. I doubt that any WISP would ague that their use of that spectrum is more important than safe operation of commercial aircraft. I expect that newly certified 5 GHz equipment will soon (within the next year) include a updated DFS algorithm that looks for the presence of 5.6 GHz radar and switches away from 5.6 when radar is detected. Your existing equipment may remain technically "legal" but you do run the risk of possibly being blamed for aircraft crashes assuming you are unlucky enough to be using 5.6 near airports where you could cause actual interference to Terminal Doppler Weather Radar systems. See <http://tiny.cc/LIlqB> for more information. jack Travis Johnson wrote: It's "iffy" because the FCC allowed the specific band, and now they are trying to take it back away... two years later. If I never upgrade my radios, does that mean I'm legal to run in that specific band forever? I just don't understand how they can allow it for 2 years, and then try and take it away and think they are going to clean up the airways. Travis Microserv 3-dB Networks wrote: Motorola Canopy 5.4GHz radios updated with the latest firmware cannot transmit in the 5600-5650 part of the band. I don't understand what is "iffy" about the band... Canopy operators have been using it for two years or so now legally, and while DFS still has issues in its current implementation, the FCC is working to make the DFS detection better on the radio side and in turn make it harder to radio manufacturers to allow clients to avoid using DFS Daniel White 3-dB Networks http://www.3dbnetworks.com -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Jack Unger Sent: Friday, November 20, 2009 11:02 PM To: WISPA General List Subject: Re: [WISPA] 5.6 GHZ? 5470 - 5725 is a legitimate band but DFS2 must be used on the radios. There is currently FCC activity to modify the DFS profiles for all newly-certified radios to avoid aircraft radar system in the 5.6 GHz part of the 5470-5725 band. The bottom line is - it's pretty "iffy". jack Forbes Mercy wrote: My new MIMO radios have 5.6 GHZ on them, I don't recall that frequency being available in the US. Is it? Forbes ---------------------------------------------------------------------------- ---- 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/ -- Jack Unger - President, Ask-Wi.Com, Inc. Author - "Deploying License-Free Wireless WANs" Serving the Broadband Wireless Industry Since 1993 www.ask-wi.com 818-227-4220 jun...@ask-wi.com Sent from my Pizzicato PluckString... ------------------------------------------------------------------------------ -------------------------------------------------------------------------------- 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/
