Spectrum is always going to be a challenge in TVWS. The recent FCC TV channel auction/repack has eliminated some of the channels so now there is less. Some manufacturers are doing channel bonding to improve performance and throughput.
The problem with the databases and channel availability is that they only report where your base station is located and how many channels you can use. You could get a great list of channels for use at the tower, then reality can kick in and when you try to install CPE devices, those same channels may not be available to transmit on for the client end. This could really become a pain when it breaks your planned use of bonded/adjacent channels. Just losing one available channel on the client end (because the client location is now within a channel contour area) can kill your thoughts on viability. With fewer not adjacent channels available after the repack it takes some serious investigation for your planned deployment to see if things will work for you. The CPE equipment is still quite expensive, most prices you see quoted do not include an antenna. TVWS CPE antennas with any amount of gain are expensive and physically large. Good rule of thumb for CPE, antenna and labor usually comes in between $800-$1000. There is just not enough production runs from any manufacturer to get the price point lower. Thank you, Brian Webster www.wirelessmapping.com From: AF [mailto:af-boun...@af.afmug.com] On Behalf Of Matt Hoppes Sent: Wednesday, June 17, 2020 9:03 AM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] TVWS feasibility Using redline gear I get 40 meg completely non line of site through about 3/4 of a forest. But yeah. It all sucks. I have three links deployed. They serve specific purposes. Nothing I would do on a grand scale. On Jun 17, 2020, at 8:47 AM, Eric Nielsen <ericlniel...@gmail.com> wrote: Comsearch offers TVWS maps that show channel availability. If there's a specific area that's of particular interest to you, try reaching out to them to see if they could give you an idea of encumbrances. On Tue, Jun 16, 2020 at 2:01 PM D. Bernardi <dberna...@zitomedia.net> wrote: Howdy folks, I'm looking into solutions to deliver Internet to very rural small pockets of NLOS subscribers where fiber, copper or tower/structure deployments are not practical or cost effective. If I'm to believe vendor briefs, TVWS technology seems to be making recent advancements. Anyone have practical experience or advice on using TVWS? Thanks in advance. Dave B. -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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