I would use the interactive map rather than search by zip code. With the interactive map you can zoom in to the area of interest and then turn the specific channel contour maps on and off at will. Much easier to visualize the availability than looking at that report. There is still some question in my mind about certain channels and the adjacent protections. For instance there is a jump in frequency between channels 13 and 14 of over 250 MHz. It would seem silly to have to protect adjacent channels between those two. There is a similar situation between channel 6 and 7.
I'm working on a revised Google Earth file that is similar to the spectrum bridge web site. I'll post it when I am done. There map server seems to be loaded pretty heavily and slow to respond lately J Thank You, Brian Webster www.wirelessmapping.com www.Broadband-Mapping.com From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of David Hannum Sent: Saturday, September 25, 2010 9:14 PM To: WISPA General List Subject: Re: [WISPA] Additional TVWS factors Is anyone consulting the database search tool on the Spectrum Bridge website? Is it of any value? Put in a zip code and it shows you all the channels and what is and is not available, and has a legend which includes the reason for any reserved ones. Any comment on how accurate and/or valuable this is? Dave Hannum New Era Broadband, LLC On Sat, Sep 25, 2010 at 9:07 PM, Fred Goldstein <fgoldst...@ionary.com> wrote: At 9/25/2010 08:43 PM, BlairD wrote: 3 and 4 are reserved... where did you get this from??? WWMT 3 was high power analog in Kalamazoo, MI WDIV 4 was high power analog in Detroit, MI There were many others... Yes, but because they were adjacent, only one of the two was in use in any given market. Therefore it was a safe bet that one of the two would be "white", and thus usable for the analog feed to a TV set. So devices with analog TV output, ranging from VCRs to game consoles, usually have a switch to choose between channels 3 and 4. -- Fred Goldstein k1io fgoldstein "at" ionary.com <http://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/
