A Studied Approach at Wi. Fi – Part 1. It has been my experience that many people simply buy a wireless access point, plop it down squarely next to their home cable/dsl modem, and assume that’s all they have to do to maximize their Wi. Fi experience. Oh, were it to be so simple! I’d like to take a few minutes of your time today to cover some of the basics of what Wi. Fi is, what it is and is not capable of, and how you as a Sys. Admin or a home user can do a bit of detective work to help ensure your Wi. Fi experience is less prone to issue. RF Basics. Let’s take a moment and talk about Radio- Frequency Radiation. RF is a form of non- ionizing radiation where waves of energy radiate from a source and follow a predictable pattern based on the transmitter power and antenna. Radio waves are measured based on the size of the wave, and how frequently the wave oscillates. The frequency is measured in Hertz (Hz), or cycles per second. Wavelength is the distance the radiation travels before it completes a single cycle. As we are mentioning travelling, we need to know the speed, right? This, my friends, is the speed of light. C = f * . 8. 02. 1. Hz range, which would put the signal wavelength at 6 centimeters. OK, but, why should I care about this when all I want to do is surf porn and play online games? The answer lies in the fact that if your antenna is not properly suited for these measurements, it won’t work that well. The antennas you get from your access point vendor are “suitable” but far from ideal. Not many people realize it, but there is an aftermarket for antennas for access points. When people/companies buy commercial grade access points, they usually don’t include any antennas, as it’s assumed you’re going to get the proper antenna for your application. So, what types of antennas are there and what are the differences? Omnidirectional – These are the antennas that people are most familiar with. They will usually be oriented vertically. See below radiation chart which does a good job of visualizing. Directional/Yagi – Directional antennas are designed to send a signal straight to a specific spot with pinpoint accuracy. Commercial antennas more closely resemble old TV antennas. The below radiation pattern does look a bit weird, but understand. This. allows a directional antenna to receive and send to stations much further away than an omnidirectional antenna, which sends RF energy. Patch antennas are normally flat antennas that are designed to radiate in a forward direction extremely well. The radiation pattern below does have some similarities to the directional/yagi. The patch antenna type is a good choice when you want to. What blocks Wi. Fi? Wi. Fi, operating in the 2. Due to the short wavelength, the energy dissipates quicker if it is not channeled. Consumer grade access points come with. The question on many people’s. Believe it or not. Wi. Fi signal to a noticeable degree. Some antenna manufacturers will quote. Cisco’s branded antennas: The density of the materials used in a building’s construction determines the number of walls the signal must pass through and still maintain adequate coverage. Consider the following before choosing the location to install your antenna. Paper and vinyl walls have very little affect on signal penetration. Solid and pre- cast concrete walls limit signal penetration to one or two walls without degrading coverage. Concrete and wood block walls limit signal penetration to three or four walls. A signal can penetrate five or six walls constructed of drywall or wood. A thick metal wall causes signals to reflect off, causing poor penetration. A wire mesh spaced between 1 and 1 1/2 in. He was having sporadic connectivity issues in a second floor room and. Sure enough, his room was directly above the wireless router, two. RF energy propogating up into that location. So if a bidet is not less healthy or hygienic than toilet paper, then the case could be made that the environmental perks are worth it for those who can afford to. A cantenna (a portmanteau blending the words can and antenna) is a homemade directional waveguide antenna, made out of an open-ended metal can. Cantennas are. Range is going to depend on the strength of the transmitter and the type of antenna being used. An “average” wireless access point with a standard omnidirectional. Do You Know How To Get Internet With A Tin Can? This Could Easily Save Your Life In An SHTF Situation! Prepare Now & Survive Later With These Helpful Tips! The Worlds most popular Wifi Antenna. Use a Super Cantenna Wifi booster antenna to amplify the range of your wifi network or connect to other wireless networks in. One of the most popular variations of this practice is known as the Pringles can antenna, or cantenna for short, which utilizes both a waveguide USB Antennas. What if your router doesn’t have its own antenna, or you still can’t get a reliable signal even after changing the internal antenna? The short- term answer. In a blog post to come, I will show you some methods you can use to help properly locate your access point. Stay tuned, and as always your. Use a password. P rotecting your home broadband network with a password can help speed it up, as well as offering vital security. Keep an eye on what devices are. Coffee Can or Pringles Can? This wi-fi antenna design is a much simpler DIY project than the pringles cantenna. Basically there are 3 parts to a build-your-own 2.4.
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