Thread: 100 metre wifi
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Martin Brown[_2_] Martin Brown[_2_] is offline
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Default 100 metre wifi

On 05/06/2020 10:23, polygonum_on_google wrote:
I want to make our internet connection available to another house
about 100 metres away - with direct line-of-sight.

Too far for standard wifi to work reliably (even if it worked on the
drive, I don't think it would do so inside).


The absolute cheapest way for that sort of range in in true DIY style is
a pair of cantennas made out of old Pringle cans and some RF bits. Some
soldering and slightly dodgy RF legality is involved in such a bodge.

I chose to do it with a normal router and a flat plate 14dB antenna and
a cheap (intended to be sacrificial) USB Wifi dongle with removable
antenna at the other. This was to extend my personal Wifi to the VH for
doing computer classes when I wanted internet. That is about 100m.

I had planned to make a cantenna (indeed I dutifully ate the caustic
crisps in the can) but ran out of roundtuits before I needed to have a
working solution and quickly so I bought the right bits.

I am well aware that various pairs of devices are available which can
do the job. Do you have any recommendations? Least expensive that
will do the job without being rubbish.

Doesn't need any fancy facilities at all. I have a wifi router I can
use inside. So this is just for the house-to-house link.


I'd try this dongle from Morgan at the far end together with a high gain
antenna and suitable interconnect cable from Solwise.

https://www.morgancomputers.co.uk/pr...ntenna-Dongle/

This one is the cheapest now and looks very much like my 14dB unit.

https://www.solwise.co.uk/wireless-o...panel-10pn.htm

Extra directional gain is helpful so you probably want the next one up
which looks somewhat different. You can use an outdoor antenna indoors.

You do need to be able to point the thing moderately accurately in about
the right direction but it is nowhere near as tetchy as a yagi. I hung
the remote antenna in a window facing my house when I needed it.

Shorter distances to the garden shed you might just get away with a
right sized foil parabolic cylinder behind the original rod antenna.

--
Regards,
Martin Brown