This was probably already answered but what is the theoretical range given the power limits in the upper channels.
Sent from my iPhone4 On Sep 26, 2010, at 9:30 PM, Forbes Mercy <forbes.me...@wabroadband.com> wrote: > I have 12 towers surrounding Yakima with my head-end in Moxee. > > On 9/26/2010 10:28 AM, MDK wrote: >> >> It appears that you have, even if VHF-Lo turns out to be not workable, >> several UHF channels. >> >> Of course, if you have real estate on the hills to the north, >> east, and south, you're not too bad off, either. >> >> ( wife's mother lives in Yakima, son's going to be going to YVCC sometime >> soon, I think, I know the place somewhat.) >> >> I ran the center of town type of scenario, putting the spot somewhere a >> little west of the railroad tracks and just south of the downtown corridor. >> I suspect it may change if you move out toward Moxee or through the gap >> out toward Wapato, or up north toward Naches. >> >> The spectrumbridge tool works pretty decently, but it lacks explanation of >> some of the features. >> >> >> ++++++++++++++++++++++++++++++ >> Neofast, Inc, Making internet easy >> 541-969-8200 509-386-4589 >> ++++++++++++++++++++++++++++++ >> >> From: Forbes Mercy >> Sent: Saturday, September 25, 2010 8:29 PM >> To: WISPA General List >> Subject: Re: [WISPA] Today is a Momentous Day for our Industry - Sept. 23rd, >> 2010 >> >> Well since I'm Yakima you now have my attention! >> >> Forbes Mercy >> President - Washington Broadband, Inc. >> >> On 9/25/2010 5:00 PM, MDK wrote: >>> >>> Your sarcasm would be, well, effective, if I weren't correct about there >>> being no way to use it. No other WISP is going to be able to do what I >>> can't do, either, Jack. >>> >>> In my town, there is ONE UHF channel. 6 mhz. That's it. In the >>> mountains, where we need it due to forest, it can't be done. Get >>> yourself a copy of Radio Mobile and check your HAAT, RM uses the FCC's >>> requirement as its defaults. >>> >>> There's ONE VHF-HI channel. Two VHF-LO channels. And, as mentioned, >>> the VHF low is so susceptible to noise I doubt anyone will even try to make >>> anything work there. One flourescent light on and your internet goes >>> dead... >>> >>> So, while this is fantastic in theory, in reality, this spectrum will not >>> be useable to signficant level, by many WISP's. If you use the tools you >>> have and start inspecting your sites, you'll find that there's a lot more >>> use of TV space than you knew. And, some places are amazingly open. >>> >>> However, some of the rural guys will find lots of space. I hope, anyway. >>> >>> Gresham, OR, - 2 channels >>> Portland, OR, - 2 channels >>> >>> Spokane, WA, 12 channels - but a good chunk won't work due to HAAT >>> limitations. >>> Libby, MT, 37 channels >>> Moro, or, 36 channels ( population, 400?) >>> Tacoma, WA, 12 channels >>> yakima, WA , 14 >>> Lawrence, KS. 12 >>> >>> The majority of examples above include at least half the channels in VHF. >>> As I noted before, there ARE obstacles to overcome in using VHF, especially >>> VHF-lo. Even VHF-hi could prove to be seriously susceptible to >>> interference. Also, the VHF and and sometimes even UHF frequencies are >>> subject to interference by "skip", which will cause cyclical interference >>> issues, by broadcasters far, far away. We'll find out when either makers >>> trials leak results, or when people start trying. >>> >>> These are some of the technical issues that will become part of our >>> vocabulary as we try to move into this. Has anyone here seen any trials >>> done in the VHF frequencies? >>> >>> I did some propagation examples in my town, using RM and UHF, and it >>> appears we're going to be limited to around 1.5 miles max distance, unless >>> you can get your antenna near max height, both AP and client due the fact >>> the fresnel zone is HUGE! >>> >>> I didn't dry the VHF bands, as I couldn't find quickly find any antenna >>> specs published for the frequencies. >>> >>> >>> >>> ++++++++++++++++++++++++++++++ >>> Neofast, Inc, Making internet easy >>> 541-969-8200 509-386-4589 >>> ++++++++++++++++++++++++++++++ >>> >>> From: Jack Unger >>> Sent: Saturday, September 25, 2010 3:53 PM >>> To: WISPA General List >>> Subject: Re: [WISPA] Today is a Momentous Day for our Industry - Sept. >>> 23rd, 2010 >>> >>> Hello Mark, >>> >>> Thank-you for your comments and thanks in advance for agreeing not to use >>> the available TV White Space channels in your area. That will leave those >>> open for another WISP to use. >>> >>> Thank you again and best regards, >>> >>> jack >>> >>> >>> >>> >>> >>> -------------------------------------------------------------------------------- >>> 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! 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