Just the range is a bit short. I found a solution to this problem. This mode is much more low level. Do you want to boost your WIFI? Looking for a DIY antenna? You can build your own WIFI antenna by having a look at this tutorial. In this video, we learn to make a powerful WiFi antenna for a long-range signal catcher. Home Made 2. It works great too. I wanna show you how to make 1km range wifi antenna at home easy way.
You can see my another log range Wifi antenna video from CAD or end screen. Lost your password? Source: siamagazin. By admin Share. Source: wireless-home-network-made-easy. A Yagi antenna with vertical elements is also vertical polarized. But if you turn the antenna so that the elements are sideways, the antenna is then polarized horizontally. Unlike the actual radio transmitter itself, antenna power is not measured in output power. For the transmitting antenna, gain is the measurement of how well the antenna converts the transmit power into a radio wave that can be sent.
Just remember, the general idea is to reduce the amount of loss and retain as much gain as possible. Antenna Gain and Cable Loss are values that are constant no matter what power level you are referring to. The referenced unit is exactly one milliwatt. Since it uses a reference point of exactly one milliwatt, it is an absolute unit of measure. The conversion of watts to dBm uses a complex formula that goes beyond the scope of this section.
In short, 1 watt or mW is equal to 30dBm. If you have cable loss of 2 dBi based on your cable length and diameter , but a gain of 7. With outdoor applications and runs over 4 feet long, use low-loss cable such as: LMR If you have a 20 foot run, use 19 feet of LMR for the main line and the smaller LMR cable for a 1 foot pigtail equipped with the connectors you need. If you mount an antenna outdoors, make sure you use a lightning arrestor. Lightning arrestors protect the router or access point from electric surges from lightning strikes on or near the antenna.
Gas charged lightning arrestors offer excellent protection. They respond to electrical surges by safely dumping excessive voltage to the ground. Therefore, they must be grounded properly in order to work! This little guy can save your Wi-Fi radio from getting fried.
Drive a solid copper rod 4 feet or longer into the ground. Run a solid copper wire 8 AWG or larger from the lightning arrestor to the grounding rod. Secure the ground wire to the copper rod with a with a grounding strap. The direction of the antenna, the polarity of the signal, and the gain of the antenna are all for the intention of getting radio waves to and from the transmitter. Maximize signal quality by matching polarity. Thus, if the antennas are perfectly positioned, they can provide a stronger signal in a given direction.
Directionally controlling signals works best outdoors where there are few obstacles to signals. Indoors, the obstacles are so many that Multipath technology MIMO , which allows the signals to take multiple paths simultaneously to the client, usually will work better than directional control. External dipole antennas have a blind zone of 60 degrees extending upwards and downwards, making the signal pattern of a typical dipole antenna look like a huge doughnut.
Internal PIFA antennas provide a pattern that is more spherical and stretches in any direction. The pattern is influenced by how grounding has been done and the size of the circuit board in the unit — therefore it is not entirely sphere-shaped, but it will still distribute the signals much more evenly than the external antenna. In simple terms, an external antenna could provide coverage that extends farther away from the transmitter, while the internal antenna provides more complete coverage.
The blind zone is minimized, also providing better conditions for Multipath technology. Basically, an external antenna has an efficiency of around 95, while the PIFA efficiency is around In practice, the efficiency of internal and external antennas are still almost equal.
Because the antennas are literally external, they also need to be connected by cable, and the connection points and cable provide an efficiency loss that reduces the difference. Where the wires intersect with electronic components, these will also add interference. The connectors on the circuit board may sometimes loosen because of rough handling, such as during transport, thereby causing unreliable contact and weaker effects. Antenna gain or gain is the ratio of how effective the antenna is, the direction it transmits in, and how effective an imaginary antenna with no signal loss would be.
Because antenna gain is a measure that combines efficiency with directional control, external antennas get the better results. However, this assumes that you are only looking at points that lie within the antenna's doughnut-shaped coverage field, in the direction that the antenna is pointing.
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