To design the antenna, you need to go to task design yagi menu. Stay here to learn how to design a 3 element yagi for whatever frequency or wavelength you want. Comes with articulating mount and 12 pigtail with n style. If you decide you really need a yagi with more elements, here are the lengths of them. There are usually four radials, three being a minimum, but you could use up to six. Log periodic directional yagi antenna 15dbi gain for 3g 4g lte xlte aws iden pcs 698mhz2700mhz wide band full band. If you want to put this thing outdoors, do not use brass, as it. Some are based on lookup tables, some completely hide their algorithms. As described in w6pqls article, i used vk5djs yagi calculator software to design the yagi. Uhf eggbeater antenna ham radio 2m70cm vertical dipole antenna youtube a simple ham radio 2 meter and 70 cm antenna for fixed or portable use. The yl and yh series yagi antennas are ideal in applications requiring directional gain. This design can then be optimised or scaled to suit particular requirements. Introduction this is basic instructions for handmade pcs 1900 mhz 14dbi double biquad 3g external antenna.
Yagiuda antennas consist of a single driven element connected to the transmitter or receiver with a transmission line, and additional parasitic elements which are not connected to the. The bandwidth of a yagi antenna, the frequency range over which it has high gain, is narrow, a few percent of the center frequency, and. Zte wf721 external yagi antenna 18db 800mhz 850mhz. Welcome to the world of wireless internet, antennas, coaxial cable, return loss plots and all sorts of nerdy stuff. A yagiuda antenna, commonly known as a yagi antenna, is a directional antenna consisting. I live in rhode island, not far from the tower in attleboro mass. The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a useful pattern. The separation will remain the same for all the elements and the lengths of these extra directors will all be the same as the 1st director.
One elcheapo actually free wooden 7 element and a much better built 10 element. This method of construction can be used on most uhf through low microwave yagis, and is especially useful for the 33, 23 and cm bands. This link is listed in our web site directory since tuesday oct 30 2007, and till today a simple 7 element yagi calculator has been followed for a total of 25020 times. The list will grow with your help so lets start and share the knowledge. For know the length of the elements, choice your frequency of work. Enter the desired frequency then click on calculate and the optimum values for that combination will be displayed in feet, inches and fractions of inches, and in meters. A simple 7 element yagi calculator resource detail the. Antenna design calculators category is a curation of 83 web resources on, parallel square conductor transmission line calculator, analysis of antenna mast strength and bending stress, full wave loop antenna calculator. Wilson 301129 wilson outside bldg yagi antenna 800900 mhz. Aluminum yagi antennas vhf, uhf, and 800900 mhz mya series. A well designed yagi antenna as per the design given below can cover a line of site distance of even 5 kms with just 1 watt rf power. First quarter 2020 earnings release pctel announces termination of share repurchase program. Yagi antennas for ham radio use, manufacturers, plans and design category is a curation of 107 web resources on, two portable antennas for 6meter, ef0610 6 meters yagi antenna, 5 elements dk7zb yagi for 70mhz. The mastmounted aw15900 directional antenna is designed for enhanced broadband highgain rf radiation in the amps, etacs, and gsm at frequencies of 800 96 mhz and with an antenna gain of.
Calculator 3element yagi maple leaf communications. For an good efficacity and directivity on radio spectrum its necessary to use an yagi antenna. Double biquad sector antenna for pcs 1900 mhz 3g hsupa. Cophasing or stacking has long been a way to get high gain from antennas. Dec 09, 20 a short video showing two of my homemade yagi uda antennas for 70cm. If you have no particular preference within a given ham radio band, then simply enter its center frequency i. Building a yagi antenna for uhf jtech engineering, ltd.
Yagi calculator this is where you input the center frequency in megahertz. Motorolas conventional channel solutions range from small single repeater sites to widearea coverage voting and simulcast systems. Pasternacks free space path loss calculator calculates the loss in db between two antennas where the gain, distance and frequency are known. Very clean pattern, 50 ohms direct feed low noise yagi. Click on calculate and the opposite value will be displayed in feet and inches or frequency in megahertz mhz. Uhf and 700 800 mhz bands, have been specifically designed for applications requiring high performance.
Using this software, you can design and build your own yagi antenna. Buy zte wf721 external yagi antenna 18db 800mhz 850mhz 900mhz 1800mhz 1900mhz at amazon uk. The antennas described in this article were built as the result of several discussions between kent and a cuban radio operator. Yagi calculator is a free antenna design and analysis software for windows. The model aw15900 900 mhz directional 15 dbi yagi antenna. A short video showing two of my homemade yagiuda antennas for 70cm. Loss increases with distance, so understanding the fspl is an essential parameter for. Below is our range for yagi, panel and omnidirectional antennas. Wc7i provides a calculator for a 3 element yagi design.
It is quite possible, that other calculators deliver slightly different results. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. Buy products related to 800 mhz antenna products and see what customers say about 800 mhz antenna products on. Yagi, beam transmission of ultrashortwaves, proceedings of the ire, vol. Yagio is similar to lpcad, it uses keyboard commands instead of a mouse menu. You could use 4nec2 software to make frequency and rh as constants and look for other variables for best results, but it doesnt worth a fuss. Software the gwbasic software program that i used to design my double yagiuda for vhf and uhf was developed by guenter hoch, dl6wu. Rooftop singleband antenna for police scanner radios. A well designed yagi antenna as per the design given below can cover a line of site distance of. It is configured so that all of the yagi beam elements should be isolated from the boom. Long yagis are commonly used from the 144mhz amateur band to the 2. I used the vk5dj yagi calculator to design a 518 mhz yagi antenna with 8 directors.
All measurements based on very careful analysis with computer software which results many times has been proven to be. Includes mntg brckt pole or wall, 10 rptnc pigtail. Aug 02, 2017 vk5djs yagi calculator yagi design frequency journal vk5djs yagi calculator yagi design frequency 787. Wilson electronics 800 mhz yagi antenna with n female connector retail packaging silver. Yagicad is a fully integrated analysis and design package primarily intended for vhf yagi aerials. Mimomax offers a range of 700mhz antennas built to withstand harsh conditions and maintain communications over long paths and difficult terrain. These antennas were made with this process, and tested on this backyard antenna range. It has the best gain for its sizes and a correspondingly narrow main lobe beam. Wilson electronics 311125 dualband magnet mount antenna 800 1900 mhz omni directional w 12. The yagi antennas overall basic design consists of a resonant fed dipole the fed dipole is the driven element and in the picture above and the second from the left side, with one or more. This calculator can be used to design a quarter wave ground plane antenna, with radials. The package includes a 2el hb9vc pcb yagi which has turned out to be a great addition for portable work, particularly from a hilltop with a good uninterrupted view of the horizon.
Yagi uda antenna calculator you may want to combine it with a folded dipole. The formula and basics of yagi antenna calculator are also explained with example. The software provides a datasheet with the required element lengths and positions, and further specs for the coax connection balun. Enter the desired frequency then click on calculate and the optimum values for that combination will be displayed in feet, inches and fractions of inches, and. Please post a comment if you know other great software or links with information about antenna calculator and design programs. Computer requirements the minimum requirements to run yw and its companion windows programs tlw, transmission line for windows and hfta, hf terrain assessment are a pc running windows 95 or later, including windows 98, 98se, xp and windows 2000. The fox channel, however, is in hardin montana, more than 75 miles away and in a direction that was more obscured by a ridge.
Signal boosters free delivery possible on eligible purchases. I am looking for an 800 mhz yagi beam antenna for monitoring the motorola 800 mhz state policefire etc system. These yagis, with predictable beamwidths and consistently high front to back ratios are ideal for long or short haul links and other applications demanding specific radiation pattern control. This calculator will help you to calculate the different wavelength of antennas. Software trunking phase 1 p25 simulcast operation v7. Difficult paths that have been overcome by wpers building yagi antennas using the. Supporting 700 800 900 mhz bands, the ant2 is suitable for a wide range of 3g4glte applications. This wiki provides detailed instructions for building and installing high performance mobile broadband yagi antennas. Cheap yagi antennas for vhfuhf by kent britain, wa5vjb edited by john maca, ab5ss editors notes. Use our simple calculator to determine approximate dimensions of materials needed to build a 3element yagiuda antenna, and then shop for your needs on our other pages and select from our inventory of aluminum, fiberglass, coax, connectors, and other parts and accessories for amateur radio and other radio applications. This page covers 3 element yagi antenna calculator. The design software the software used to design the antenna.
The distance between one point to another adjacent point in a wave is known as the wavelength. Mar 16, 2020 yagi calculator is a windows program that also runs well on linux, ubuntu 8. This software can not only be used to design but also to find out antenna gain, stacking distance, and standing wave ratio swr. Effective radiated power erp from antenna gain db calculator free. With yagicad it is possible to enter a base design from scratch or use one of a number of saved well known designs.
Lets see some antenna calculator and antenna design software that will help you design faster and better. Right now i am presently using a diamond discone up about 25 fed with lmr 400about 50 feet. Another ham brought to my attention, that i should have indicated if this yagi antenna calculator is built with the yagi beam elements isolated from the boom or not isolated. Folded dipole fully insulated from boom directorreflector diam 2. Free space path loss fspl calculations are often used to help predict rf signal strength in an antenna system.
The measurements below are for building a simple dipole antenna. This antenna is very adapted at vhf and uhf domain inside 30 mhz to 900 mhz. If you would like to calculate just wattage and antenna gain without the transmission line and its effects, simply insert a low frequency into the frequency text box 0. It is inversely proportional to the frequency which means the wave with higher frequency will have shorter wavelength. Mmanagal free antenna design and modelling software. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun. Pdf in this paper, a modified printed quasiyagi antenna is presented. This is where you input the center frequency in megahertz. I used computer software 4nec2 antenna modeler and optimizer version 5. This article provided the practical help i needed to actually construct it.
The result is 3 db more than just a single antenna. It started with a basic rectangular microstrip patch. If youre an amateur radio hobbyist who monitors the 800 mhz police, fire and public safety bands, a homemade wideband scanner antenna may improve your reception. The commercially made yagi could detect the signal, but it was too weak to get a picture. Vk5djs yagi calculator yagi design frequency journal vk5djs yagi calculator yagi design frequency 787. This calculator is designed to give the critical information of a particular beam antenna, in this case a three element yagi, for the frequency chosen. The antenna works great for the 518 and 494 mhz stations. The ant2 is designed specifically for long distance clients connecting to mobile communications towers.
Effective radiated power erp calculate erp from known transmission variables. Motorola gtr8000 700800 mhz repeater 100 watts mhz p25. Yagio runs under windows 2000, xp, vista, win 7 and likely win 8. A yagiuda antenna, commonly known as a yagi antenna, is a directional antenna consisting of multiple parallel elements in a line, usually halfwave dipoles made of metal rods. Input the frequency in mhz where you hang out at the most. Use our simple calculator to determine approximate dimensions of materials needed to build a 3element yagi uda antenna, and then shop for your needs on our other pages and select from our inventory of aluminum, fiberglass, coax, connectors, and other parts and accessories for amateur radio and other radio applications. Sota homebrew 23cm 12 element yagi antenna get out of. To be combined with a yagi uda antenna or used as is.
Laird connectivity pc series yagi antennas are excellent for 800 mhz esmr and smr or conventional applications. Yagi calculator is a windows program that also runs well on linux, ubuntu 8. This calculator is designed to give the vertical length height of a particular whip type antenna, or the frequency of it. Canfi nf meter inexpensive automatic nf measurements ham project using a dvbt receiver and free software. The yagi antenna is a narrowband antenna designed to work only on fm channel.
I like to use the basic dl6wu wideband yagi designs whenever possible. Best 144 mhz to 146 mhz wideband yagi antenna for 2 meter band. Monitoring 700 and 800 mhz trunked digital and analog public safety radio systems can be very challenging when you are either too far from the system and signals are weak or, alternatively, when you have too much signal from multiple simulcast transmitter sites that are transmitting the same signals on the exact same frequencies or even different nearby frequencies. Buy wilson 14 db 800 mhz yagi cellular antenna 301111 and wilson400 20 feet ultra low loss coax cable 952320. Enter one only one value, the desired frequency or the antenna length in any length field. The calculators for other antenna types such as parabolic,horn,dipole and patch are also mentioned.