Yagi Antenna Tutorial . The Yagi antenna derives its name from its two Japanese inventors Hidetsugu Yagi and Shintaro Uda. Get Installing Outdoor Antenna at the best prices online at LightInTheBox.com, buy now and save more on shipping. Shop Installing Outdoor Antenna now and get more discounts! Compact and lightweight dualband yagi antenna for 2m and 70cm, with one common connector. Requires only one cable down to the radio, ideal for dualband radios with integrated diplexer. Antenna Installation (Nov 2008) I got the C4SXL from John. The next project for this antenna will be a switch box with some series inductance that will allow me to set the phone frequency at 7200 KHz and the CW for about. Installing Yagi Antenna. Installing a yagi directional antenna is pretty straight forward then most think, and very similar to installing TV antenna from the past. This task requires two person, one on the roof and one person. 2 Package Contents Wilson Yagi (#301111) contents include (A) Yagi antenna with N-Female End Connector, (B) 2 - U-Bolts, (C) 2 - Pipe Brackets, (D) 4 - 1/4” Split-Lock Washers, (E) 4 - 1/4”-20 nuts. Antenna Installation. The RF antenna design concept was first outlined in a paper that Yagi presented in 1. Since then its use has grown rapidly to the stage where today a television antenna is synonymous with an RF antenna having a central boom with lots of elements attached. The design for the Yagi antenna appears to have been initially developed not by Yagi who was a student, but his colleague Professor Shintaro Uda. However all the original papers were all in Japanese and accordingly the design was not publicised outside Japan. It was Hidetsugu Yagi who wrote papers in English and as a result the design is often incorrectly only attributed only to Yagi. Yagi himself did not aim to steal the publicity, in view of his English papers, and as a result the design now bears the names of both men and is known as the Yagi- Uda antenna. Yagi antenna - the basics. The Yagi antenna design has a dipole as the main radiating or driven element. Further 'parasitic' elements are added which are not directly connected to the driven element. These parasitic elements within the Yagi antenna pick up power from the dipole and re- radiate it. The phase is in such a manner that it affects the properties of the RF antenna as a whole, causing power to be focussed in one particular direction and removed from others. The parasitic elements of the Yagi antenna operate by re- radiating their signals in a slightly different phase to that of the driven element. In this way the signal is reinforced in some directions and cancelled out in others. It is found that the amplitude and phase of the current that is induced in the parasitic elements is dependent upon their length and the spacing between them and the dipole or driven element. There are three types of element within a Yagi antenna: Driven element: The driven element is the Yagi antenna element to which power is applied. It is normally a half wave dipole or often a folded dipole. Reflector : The Yagi antenna will generally only have one reflector. This is behind the main driven element, i. However many designs use reflectors consisting of a reflecting plate, or a series of parallel rods simulating a reflecting plate. This gives a slight improvement in performance, reducing the level of radiation or pick- up from behind the antenna, i. The director or directors are placed in front of the driven element, i. The main one of these is the reverse lobe caused by radiation in the direction of the reflector. The antenna can be optimised to either reduce this or produce the maximum level of forward gain. Unfortunately the two do not coincide exactly and a compromise on the performance has to be made depending upon the application. The antenna provides many advantages in a number of applications: Antenna has gain allowing lower strength signals to be received. It is widely used in applications where an RF antenna design is required to provide gain and directivity. In this way the optimum transmission and reception conditions can be obtained. Register for our newsletter. Crossed Polarized Yagi Antenna INSTALLATION GUIDE MODELS. Before assembling and installing your antenna. Mount the assembled Yagi antenna and mounting bracket to the mounting pole. Learn how a Yagi Antenna can save you from paying expensive Cable TV bills every month. Its easier than you think to pull in HDTV signals with the right. WiFi Antenna Installation Best Practices. Whether you are installing a wireless network indoors or outdoors you must always consider line of site. Using a Yagi Antenna in a Cell Phone Signal Booster System; Using a Yagi Antenna in a Cell Phone Signal Booster System. A Wilson Multi-Band High Gain Yagi Outside Antenna (304411).
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