Mike, I would suggest that you not use this band if it does not meet your needs. I tend to not use 5.8 in my area as 5.8 does not meet my needs.
Your needs appear to be different from mine. ryan On Mon, Apr 5, 2010 at 11:24 AM, Mike Hammett <[email protected]>wrote: > So we're regressing to a bunch of high powered omnis? Maybe I don't > understand how much of a God-send sync is, but if it's that great, why is > the default Canopy setup 6x 60* sectors instead of a single omni? (I'm not > saying sync is bad, I wish everything had sync). > > I don't really give a hoot about the higher power. Regular power levels > will give me the penetration I need. I'll run out of mbit/s long before I > run out of dB. I am aware that more rural areas need the higher power. As > many people are looking to penetrate the foliage domain of a populated town > or subdivision as there are looking to traverse a sparse forest. > > > ----- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > > -------------------------------------------------- > From: "Ryan Spott" <[email protected]> > Sent: Monday, April 05, 2010 1:02 PM > To: "WISPA General List" <[email protected]> > Subject: Re: [WISPA] WISPA TV Whitespaces Meeting with the FCC > > > At 20watts, you probably won't need a 15db antenna. :) > > > > With lightly licensed, you probably won't need a sector. (less > > interference). > > > > With GPS timing (ala moto/cell gear) you will have less > self-interference. > > > > ryan > > > > On Mon, Apr 5, 2010 at 10:45 AM, Mike Hammett > > <[email protected]>wrote: > > > >> My experience is mostly limited to the WISP market (though I'm not > >> completely ignorant of other markets). Innovation is always welcome, > but > >> any sector that delivers approximately 90 degrees and 15 dBi performance > >> is > >> going to be huge. > >> > >> > >> ----- > >> Mike Hammett > >> Intelligent Computing Solutions > >> http://www.ics-il.com > >> > >> > >> > >> -------------------------------------------------- > >> From: "Mike" <[email protected]> > >> Sent: Monday, April 05, 2010 12:39 PM > >> To: "'WISPA General List'" <[email protected]> > >> Subject: Re: [WISPA] WISPA TV Whitespaces Meeting with the FCC > >> > >> > Have you ever taken a really good look at an FM broadcast antenna? > >> > Most > >> > are > >> > circularly polarized so they can be received by both horizontal and > >> > vertical > >> > receive antennas. Even at 90 MHz they aren't that large either. My > >> > choice > >> > of sector would be something like that, and would be made of aluminum > >> > parts, > >> > not panels like we are used to using now. I predict circular polarity > >> > will > >> > be the norm. Why? Because theoretically, a receive antenna of > >> > opposite > >> > circular sense exhibits infinite loss. My experiments have shown that > >> > reality is less, but you CAN expect at least 30 to 40 dB of isolation. > >> > The > >> > same 6 MHz segment could be reused on the same tower. The phasing > >> harness > >> > on the CPE antenna would have to set to either left hand or right hand > >> > circular polarization. > >> > > >> > Friendly Regards, > >> > > >> > Mike > >> > > >> > Mike Gilchrist > >> > Disruptive Technologist > >> > Advanced Wireless Express > >> > P.O. Box 255 > >> > Toledo, IA 52342 > >> > 239.770.6203 > >> > [email protected] > >> > > >> > > >> > -----Original Message----- > >> > From: [email protected] [mailto:[email protected]] > On > >> > Behalf Of Mike Hammett > >> > Sent: Monday, April 05, 2010 12:23 PM > >> > To: WISPA General List > >> > Subject: Re: [WISPA] WISPA TV Whitespaces Meeting with the FCC > >> > > >> > Then the problem arises of frequency reuse if we have such low gain > >> > antenna > >> > all over the place... and the size of a sector antenna for towers. > >> > > >> > > >> > ----- > >> > Mike Hammett > >> > Intelligent Computing Solutions > >> > http://www.ics-il.com > >> > > >> > > >> > > >> > -------------------------------------------------- > >> > From: "Mike" <[email protected]> > >> > Sent: Monday, April 05, 2010 11:59 AM > >> > To: "'WISPA General List'" <[email protected]> > >> > Subject: Re: [WISPA] WISPA TV Whitespaces Meeting with the FCC > >> > > >> >> Just for discussion, let's say a TV LPDA has a gain of 8 dBi. It > will > >> >> cover > >> >> the entire VHF TV band, and by superimposing a UHF LPDA on the same > >> mast, > >> >> can cover the entire UHF TV band with similar gain figures. > >> >> > >> >> I'd make this challenge: > >> >> > >> >> I could TRY to hide a TV band LPDA on my property and beg you to find > >> it. > >> >> Even well hidden, you would. Now, give me a few hours to build a > >> >> narrow > >> >> band antenna with similar gain in ANY 6 MHz segment of the same > bands, > >> >> and > >> >> let me try to hide it. Do you think I could hide it well enough you > >> >> wouldn't find it? I know I can. > >> >> > >> >> My point is, the antenna which will be needed for any segment of the > >> >> whitespace will be much less intrusive than the LPDA (or Yagi) being > >> used > >> >> for comparison. > >> >> > >> >> This is great dialogue. I hope we are faced with the challenge of > >> >> deploying > >> >> in these bands. > >> >> > >> >> Mike > >> >> > >> >> > >> >> > >> >> > >> >> > >> > > >> > ---------------------------------------------------------------------------- > >> > ---- > >> >> WISPA Wants You! Join today! > >> >> http://signup.wispa.org/ > >> >> > >> > > >> > ---------------------------------------------------------------------------- > >> > ---- > >> >> > >> >> WISPA Wireless List: [email protected] > >> >> > >> >> 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: [email protected] > >> > > >> > 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: [email protected] > >> > > >> > Subscribe/Unsubscribe: > >> > http://lists.wispa.org/mailman/listinfo/wireless > >> > > >> > Archives: http://lists.wispa.org/pipermail/wireless/ > >> > > >> > >> > >> > >> > -------------------------------------------------------------------------------- > >> WISPA Wants You! 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