I was thinking more in terms of foliage or other object density, or mountains/hills, to help estimate range. Wouldn't TVWS still have better performance in an open area compared to dense forest given equal SNR?
At 10:06 AM 6/23/2020, you wrote:
Iâm a little confused by your question. LIDAR data is going to show you line-of-site locations which is not what TVWS gear is best used for servicing. LIDAR data only makes sense in identifying the areas you canât serve with other gear. I suppose it gives you a ânegativeâ view of the area to identify area you might want to serve with TVWS. Mark > On Jun 23, 2020, at 10:02 AM, D. Bernardi <dberna...@zitomedia.net> wrote: > > > Hi, > > I appreciate all the feedback. > > RADWIN is still in beta and will not have product until Q4. Redline does have production gear and I'm still gathering their information. > > Would it make sense to build/buy an analyzer for collecting site specific data over a few days and couple that with LiDAR data to try to classify an area as potentially serviceable. > > In addition if there are identifiable discrepancies with real data and the database, can these be corrected? > > > > At 10:19 AM 6/17/2020, you wrote: >> Content-Type: multipart/alternative; >> boundary="----=_NextPart_000_0CCB_01D64490.D14AADC0" >> Content-Language: en-us >> >> 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 <<mailto:dberna...@zitomedia.net>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 >> <mailto:AF@af.afmug.com>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 >> >> -- >> 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 -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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