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I can boost wifi signal with a antenna like this? I live in a soykafhole country and need to steal wifi from a company

btw /antenna/ general

I've got a dish like this that I've been meaning to hook up for tinkering with meshnet stuff, I'd imagine it should work for whatever you hook it up to, including SDR.

>>11927 If you remove the feedhorn at the focus--which is tuned to a satellite TV frequency obviously--depends on what service and country you're in, but it's not the 2.4 GHz range that WiFi uses. Replace it with some kind of wifi dongle, or even better look up some cantenna schematics and put one at the focus facing the dish. Old C-band dishes (the huge kind that sat out in your yard) overlap with 5 GHz WiFi, which is a bit of a curiosity--but probably not useful in a practical sense. However the sheer size can offer enough gain to reliably pick up signals from geostationary satellites, so if you have one I imagine you might be able to connect to wifi from a good distance. Figuring out how to mount it horizontally could be an issue, heh. Also look up cantenna designs in general if you want to make a more efficient feedhorn than a dongle on the end of a USB extension. Or maybe some 2.4 GHz yagi designs if you're feeling adventurous. I've seen them out there, but never tried them--there are some that come in a little trapezoidal plastic enclosure with the antenna element presumably printed on a PCB inside with a SMD balun or something. There are also ones that come as big metal constructions similar to what you used to see on people's roofs in the days of analog TV, but with stubbier little struts. As I said, I've never tried WiFi yagis myself, and I sort of suspect there's a reason why they are rare. Watch out for other things that live in the 2.4 GHz area like microwave ovens. Radically increasing the directional sensitivity means you'll also be amplifying that useless noise if you have one somewhere in the antenna's forward lobe. My brother just moved into a new house and found a very shoddy-looking "wokFi" receiver on the roof made out of a dongle, USB extension cable... and literally a metal strainer used for deep-frying crab rangoons. I doubt it ever worked very well, but presumably the previous owner was picking up something with it. Having an actual parabolic dish with a precise focal point is instantly much better, not to mention you'll have more surface area. >>11930 I also have one of these cagey-looking wifi parabolics. They are nice because they already have a secondary reflector and a dipole at the focus that is tuned to 2.4 GHz. Got it on Provantage or something--I think it was less than 20 bucks shipped. OP--you'll need a UHF to SMA adapter to plug it in to one of the antenna ports on your router--and you might have to disassemble the router to expose the SMA plugs, so take it open and make sure those exist. You might need to get something more exotic like a UHF to U.FL.

>>11941 >cantenna That's been a minute. I remember looking into this in the days before g routers came out.