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:
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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:[email protected]] 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 <[email protected]> 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:[email protected]>[email protected]> 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.
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