So say you're in a neighborhood with like 5 networks you can see regularly. You hook up your big ass omni directional antennae adn amplify it. Now you see like 40. Woot, right? Nope. According to the science I learned - just imagine that by seeing so many more networks there's ALOT more disturbance in the signal you're trying to get cause wifi waves are bouncing around everywhere off everything and you're collecting it all with your super sensitive instruments - you'll see - bad performance.
Switch to a smaller antennae and things are much better again - you'll notice improved performance because you antennae isn't getting all that interference and distortions too.
Good amplified wireless adapters have noise filtering as well, should help with that some.
The directinoal antennaes were A PAIN THE FUCKING ASS to use unless you like spending hours trying to tweak shit. Don't worry though, I'll explain how you should really do this. Directional antennaes are only going tobe useful if you're REALLY far away from a poin, there is nothing inbetween. Like you're in the middle of the desert. The problem with directional antennaes is alot of the waves bounce around especially in more city like areas...they'll parially and completely bounce off all sorts of materials in so many different ways.
I have also had some trouble with directional antennas, you really do need to position them just right. They are better for long distance though. Generally I hear that you use Omni directional for the hotspot and then directional to connect to it. Directional definitely works better for direct line of sight, that is why you would rarely want to use a directional antenna for the hotspot, because it needs to provide WiFi to a radius around it not a narrow line from it. But if you point a directional antenna right at the hotspot I think it would still be better than omni directional at cutting through walls and other objects than a comparable omni directional antenna would be. But omni directional is better at getting signal that takes an erratic path, so if you have an omni directional antenna in a room with an open door, signal will go out the open door, whereas with a directional antenna it will only go where you point it.
Because of this, the directional antennae is going to miss alot of the waves that came the direction of your target wifi network because some with hit it from behind and all these different angles. - this is why we liked omnidirectional more cause it catches eveything the network gives. There's alot less packet loss - which isif you employed some of the strategies here without my advice you'd be scratching your head over for way too long like we did.
I am not sure. If your neighbor has a wireless router that is in a straight line through four walls away from you, I think that directional antenna stands more chance of getting signal through the walls, but it needs to be pointed right at the wireless router. On the other hand, if they have a wireless access point in the same place but a window is open, an omni directional antenna will pick up signal coming out of the open window better. I can definitely see that omni directional are superior in some cases, in most cases they will definitely pick up more signals at the same time, but directional antenna is more likely to be able to pick up more signals at different times depending on how you have it positioned. The first directional antenna I got was a big let down for me but I think it is because I did not amplify it at all. The second directional antenna I got worked great when it was amplified but it needed to be pointed just right for optimal performance. Omni directional are certainly better if you don't want to have to reposition your antenna all the time, but I think directional are better for busting through walls (whereas omni directional are better for going around walls, if there is any way to go around the walls).
You use special types of cables that split up where your connection is received from into many difference locations. Like split it up into one big antennae on one side of your house and another big antennae on the other - now they even get to take advatange of potentialy triangulating witheach other. We never actually tested this as I said so I don't know much about it, where to find it, or how to exactly set it up (besides trying to make the antenaaes as far away from either other as possible.
I am no expert on wireless stuff, but isn't that sort of what a dipole antenna does? I thought that dipole antennas are essentially two directional antennas in one, with each one pointed in the opposite direction.
I would imagine dishes would perform similarly if you were to set up several different angles pointing at the same spot - but still miss alot of waves. so perhaps a good setup would be to use an omnidirectional with it.
I think dish antennas are omnidirectional antennas but with a big angle. They are probably your best bet for getting the most signal as well, since they are usually mounted outdoors and have at least one less wall to penetrate through. On the other hand, you cannot really drive around with a huge dish antenna mounted on the roof of your car, I think that would look suspicious
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I've got one or two 24gb gain directional antennas I believe. Got at least one. This is the highes tgain I could find.
I assume you mean db. My impression on antennas from personal experience, but again I am no expert on this, is that the antenna is sort of a bottleneck that determines the best possible range you can get. But even the best antenna without an amp is not going to be very good, it needs to be powered in order to live up to its maximum potential. This is just the impression I have after once buying a really high end antenna and noticing it had very little effect on my range as compared to a much cheaper antenna. I think the limiting factor was that I was not powering either of the antennas, because later when I bought an amplifier it made a lot of difference and that is when the differences between the antennas really became obvious.
Got a nice very powerful amplifier (I believe I bought the best and most powerful one available, which btw did not help out at all...although it may if you use multiple antennaes. Think of it as turning up the volumes when your antennnae is already picking up too many radio stations. Can you hear any of them any better then? No. That's essentialy what these amplifiers do.
Yeah that is a problem for amplified signals, but there are noise filtering amplifiers as well maybe that will make the difference. Have you ever tried a noise filtering amplifier?
Oh btw another alternative is to just ren the devices that make 4g hotspots with fake information and have them mailed to some random address (that's your part to figure out lol). The works well and is nice and consistent, although I believe most of htese come with a GPS coomponent though.
In a lot of European countries you can buy those things over the counter with no ID required. I think that they can all be triangulated as easily as a phone though, so it might not actually help very much at all especially if you use it from your house. If they all come with GPS then it will be even less helpful. Another alternative is to use hacked cable modems with spoofed MAC addresses, although I don't think this is much more helpful for anonymity than using open WiFi. The cable company can at least determine your neighborhood, and then they can locate you by running a tap on each of the lines in the neighborhood looking for where the rouge signal is coming from. Usually I think this is too much of a hassle for the cable company to do, but if the police are after you they can do it, might be a bit more work for them than tracing a rouge WiFi signal but it is by no means impossible. Plus using hacked Cable Modem is much more likely to have the cable company come after you than using Open or Cracked WiFi is to have the person who owns the access point come after you or contact the police, but to the best of my understanding it is difficult for the cable company to detect that you are doing this if you go about it right, and even when they detect somebody doing this it is often too much a pain for them to bother tracking them down.
Heh that thing about using multiple antennaes for one connection....you guy are SO FUCKING LUCKY I told you about it because we spent so much itme and stress in our project group until we were actually told thats the way thephysics of wifi communication work.
I think those are called dipole antennas.
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