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What else can I help you with?
What is a Yagi-Uda antenna?
how to measure the length of elements and spacing of elements
Where can one purchase a Yagi Antenna?
Yagi antennas may be purchased online through sites such as Amazon or eBay. Alternatively, someone may wish to buy an antenna directly from the manufacturer. If one wishes to buy from the manufacturer, ZDA Communications, one should call 803-608-4122, send a fax to 803-736-5310, or send a letter to 100-3 Forum Drive Suite 192 Columbia, SC 29229.
How does yagi-uda antenna differ from a folded dipole a loop antenna and a helical antenna?
Wow, your question on how a yagi-uda differs from a folded dipole, a loop antenna, and a helical antenna relates very much to how does a lawn mower engine relate to a V-8. The principals in all the antennas remains much the same. So I will deal with them in the order asked. The Yagi in its simplest form consists of 3 elements. The center element is the driven element and is essentially a dipole. Behind it is a slightly larger element called a reflector which does just that, it reflects signals to and from the dipole and in front there is the smaller director which helps focus energy. This is a directional antenna with gain. The folded dipole goes back to the basic dipole except it has makes a full loop. They are just as about as long as regular dipoles. With the loop of wire out there, they tend to have a wider band width than regular dipoles - but are not as tolerant of being used at even multiples of their cut frequency as the wires tend to cancel out each other. Oh, btw, yagi's have been made using folded dipoles. You must use ladder line or a 4:1 balun on folded dipoles, with perhaps the exception of the terminated folded dipole which has a resistor where the two elements of the dipole come together. The loop antenna? Which loop? I assume you are talking the traditional loop and not the magnetic loop. The full loop is normally computed to be 1005/frequency=feet. While you could take the time to tune the antenna, it might just be easier to put in a balun and an antenna tuner. The main advantage of a loop over the previous reviewed antennas is that it does fairly well even though fairly close to the ground where the previous 2 antennas should be at least 1/2 a wave length up for good performance. Helical antennas are generally good for just one band. In fact, due to the loading they cause they are best if used on a single frequency as their feed line requires them to be provided the connecting feed the is the electrical equivalent of a 1/2 wave at that frequency of operation. This may work well at VHF and above as an entire band can be tuned satisfactory, but in HF it would limit you to a very small segment of the band. Helical antennas definitely are the lawn mower engines of the antenna world. Look up antenna elmer on your favorite search engine. You have entered into a world where there is still a lot homework left to be done.
What two types antenna used for terrestrial microwave communication?
Virtually all terrestrial microwave communication is point-to-point, using parabolic reflector antennas. A small percentage uses yagi, helical, corner reflector, or flat-plate reflector antennas. Essentially no "omnidirectional" antennas are used in microwave.
What is antenna tilt?
Antenna gain of base station for a specific user depends on antenna pattern, antenna orientation (azimuth and tilt) and user's coordinates with respect to base station.
Is a Yagi antenna a directional antenna?
Yes.
What is better a yagi antenna or directional antenna?
A yogi is a directional antenna.
What is a yagi?
A yagi is a directional antenna consisting of two or more dipoles.
Who discovered the antenna?
yagi uda
What is a Yagi-Uda antenna?
how to measure the length of elements and spacing of elements
Why yagi uda antenna is used?
Some advantages of the Yagi- Uda Antenna include that this is a widely used design and low cost. The construction also is simple. Some disadvantages are that the receiver of the Yagi-Uda Antenna may have problem receiving signal.
What are the disadvantage of yagi-uda antenna?
bandwidth is less..
Is yagi uda antenna have parasitic elements?
Yes, the Yagi-Uda antenna has several parasitic elements, in the form of a reflector ("behind" the driven element) and the directional elements ("in front" of the driven element).
What is the gain of yagi antenna?
Typically, +10db, but other configurations are possible.
What is yogi antenna?
It is a Yagi antenna- used for TV reception. nothing to do with either Yoga or yogi bear or Berra!
Where is the yagi antenna used?
mainly it is used in transmission and reception of TV signals
Is parasitic elements are used in yagi-uda antenna?
Yes - reflector element and directional elements.
