Cool but only works to a point. It allow it to receive but it output power dosent change. It be like yelling to someone with a periodic dish which amplified the low sound an have them tell back but you don't have that dish
IF the output from the transmitter is +20 dBm, and IF the antenna element are tuned to 2.4 or 5 GHz, AND the SWR in the line from TX to antenne is ok, AND if the antenna elements is in the focal point of the dish, then the output from the antenna would be something like: +20 dBm (TX) -3 dB (cable loss)+ 30 dBi (antenna gain) = around +47 dBm EIRP. That is 47-20 = 27 dB gain, that's like 500 times stronger to the air than what comes from the transmitter (= around 40W transmitted from the dish) ----------------------------------------------------------------------------- ЕСЛИ выходной сигнал передатчика составляет +20 дБмВт, и ЕСЛИ антенный элемент настроен на 2,4 или 5 ГГц, И КСВ на линии от TX до антенны в порядке, И если антенные элементы находятся в фокусе антенны , тогда выходной сигнал антенны будет примерно таким: +20 дБм (TX) -3 дБ (потери в кабеле) + 30 дБи (усиление антенны) = около +47 дБм EIRP. Это 47-20 = 27 дБ усиление, это примерно в 500 раз сильнее для воздуха, чем то, что исходит от передатчика (= около 40 Вт, передаваемого с антенны). Простите за ненормативную лексику!!!!
@@coccobill7982 that on one side of it. If your using equipment like say a phone or a laptop at 3 building over then that device will see your transmitter but won't have the output power to talk to it keeping in mind wifi at 802.11 a(x) or n is like 90 meters +/- . What signals your transmitter might get is hit an miss an a lot of noise. Now say you make a portable one to carry with you for your laptop then yes you can point it to your dish if your with in it degrees of line of sight.
It's completely fake investing time in this is waste better you purchase external antinna 5 G is still year late to get fully deployed , wasting mone will only leave you disappointed and loosing your current network status
People making fun of this, should know that it would actually work. The dish would not be pointed towards the sky but laterally in the direction of the wifi ap.
No it wouldn't, an LNB and its feedhorn are mounted at the focal point of a parabolic reflector dish so that the low power RF signal coming from a specific direction is reflected from every point of the dish face in phase constructively into the feedhorn which then acts as a low impedance waveguide to direct the concentrated RF signal to two cross polarised antenna probes at the back which are connected to the actual LNB which is a low noise block down converter, its an electronic circuit board that is gone here. The angle of the dish with respect to the direction the RF is coming from and the positioning of the feedhorn are critical if the are even slightly misaligned then the RF signal will be reflected to the feedhorn out of phase deconstructively which degrades it and makes it unusable, move your satellite TV dish slightly and you will see how sensitive it is. He's just using the empty LNB housing and the feedhorn here as a mount for the two little antennae set up as a V dipole he could have just mounted them on the mounting arm without the LNB box.
Converting a LNB into a wifi antenna does not requieres a dish... i can convert my flashlight.... remote control... what ever into an wifi antena... this video makes no sence.
Just having the untuned antennas above the center point creates a singnal loss. The untuned "V dipole" makes it worse. It could be so much better. You'd be better off taping a usb wifi dongle in front of the feed horn. Done!
I'm on the fence on this one. Using a dish and an LNB as a mount for Wifi antennae does make sense. I run about 5W to a 1m dish on 2.4GHz to communicate through the geostationary QO-100 satellite (narrow band SSB transponder) with a 3.5 turn helix. The elevation angle shown seems suspect - it will be pointing towards the sky. But has given me an idea for a project.
Not sure about that parallel connection, maybe if the lengths were scaled to be 1/4 wave apart it would do circular / mixed polarization. Also, the antennae are quite some way off the focus, so it would squint, and it's quite likely the direct and reflected signals would not be in phase. I think this may be another "any bit of wire gets a signal" antenna in reality
@@matthewday7565 ever seen a cantenna? Wifi spot antenna made from a Pringles can. Used to use one back in the day while playing around with Backtrack3 across from an apartment complex.
@@fauxque5057 i used cantenna i've used the pringles kind and the menudo kind as well as the bean type of can hooked it to sat dish and viola' boosted my wifi and found some open wifi from hotels. great minds think alike 👍
I hope all with private wifi networks activate security and add a hard to break password to it. We all need to do what we can, to stop hackers breaking in to our networks. This as a general advice, not as a comment to this spesific video.
If you removed lnb pcb it's no Longer lnb , It will be great mod if you Use it's Amplifier by bypassing Filter as Signal booster , Active amplifier amplification .
You'd be far better off just strapping any kind of real WiFi antenna at the focal point of the dish.. That mess that he constructed isn't tuned for anything close to 2.4 or 5Ghz...
He is obsessed trying to convince everyone he is making antennae out of an LNB, but its just the empty housing and the feedhorn which are doing nothing, the chance of getting that little V dipole antenna positioned properly at the focal point of the dish so that the RF reflects to it constructively in phase are zero, it will be degrading any signal there is.
Is it safe? Does it offer client isolation for all users? Static IP? Etc.. if safety sucks, this WiFi sucks too Brace for impact, you will get hacked by random people, for extending your WiFi range
It's completely fake investing time in this is waste better you purchase external antinna 5 G is still year late to get fully deployed , wasting mone will only leave you disappointed and loosing your current network status
And another award for 'So Close Yet So Far Away". Nice try. The antenna needs to be cut to frequency and centered where the LNB is. These rabbit ear antennas are not optimum.