There are 3 other sections. Skip the theory, and let the computer do all the work. Go to the Gain VS Height above ground. Go to the Take off Angle VS Height area. The theory starts here. There are lots of yagi design programs on the web, but most of them do not tell you what particular. As you probably know by now, all YAGI antennas are a COMPROMISE. You can not have them all. This design is for the greatest FORWARD GAIN, and not any of the. YAGI antenna can have. Homemade Yagi Antenna PlansDipole Antenna CalculatorEZNEC claims this antenna has around 1. Bi gain, but that seems far too high to me. I expect about 7 d. Yagi Design Calculator' title='Yagi Design Calculator' />Bi or 8 d. Bi maximum. The theory works for ANY frequency you choose, from below 1. MHz. The 8. 0 meter version was used for Field Day 2. Olympia, WA by the. Tv Antenna Calculator' title='Tv Antenna Calculator' />Free Download YAGI Lightweight program that provides users with a simple means of calculating various parameters pertaining to your YagiUda antenna3. IDSERP,5591. 1Cubical Quad Antenna JavaScript Calculator QRZ Now. JavaScript PROGRAM by N6ACH Ron vanVarden Sample See More on Calculator Web Site Link Photos Click to enlarge. VHFUHF Yagi Antenna Quick Designer by Martin. This page is intended for users that want to experiment with a yagi design but do not need all the rhetoric. Yagiantennacalculatorvhfuhfsoftware Download Yagi calculator 2. DL6WU style long Yagi antenna VHF and UHF. Antenna Calculator is a useful tool when developing antennas. I would like multi element cubical quad and yagi. Its just a calculating program. Price Freehttp hIDSERP,5547. YAGI ANTENNA DESIGN BASICS Learn More About a Yagi BASIC YAGI ANTENNA DESIGN FOR THE EXPERIMENTER Helpful. W7RAI has a very nice DOS based Yagi design program that can be downloaded for FREE 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. Amateur Beam Antenna Calculator. This calculator is designed to give the critical information of a particular beam antenna, in this case a three element Yagi. Olympia Amateur Radio Society. If it really has 1. Bi gain and you put 1. Watts in the forward direction. Watts in results in 1. Watts out in the forward direction. This is a fantastic antenna, but that just seems like far too much to believe. I suspect that 8 d. Bi is probably more correct, but even 8 d. Bi will mean that 1. Watts in will behave like 6. Watts in the direction the yagi is aimed. A couple of charts from EZNEC will help show what the calculations claim for this antenna. This Azmuth Plot graph shows the gain, and also says that the beam width is 1. B gain markers. The FRONT to BACK ratio is 1. B, which is not. fantastic, but that is not what I was after. Go to the Azmuth Plot to see an EZNEC graph. The next graph shows the SWR plot for this antenna. I calculate that the bandwidth. SWR 3 1 is 4. 7 of the center frequency. That means that the. Hz to 3. 9. 8 m. Hz, which covers most of. SSB portion of this band. If you want to use this antenna outside of the range. Go to the EZNEC SWR graph to see this. To keep things very simple, I will ignore most of the things that a Ph. D in. Electrical Engineering would think about. This is a simple, easy design. Ph. D could get a bit more gain from her 3 element Yagi. First, it does NOT matter what you use for the boom. It can be a conductor. NO BOOM at all. You could make a wire yagi instead. Second, the spacing between the driven element and the refelector will be. SAME as the spacing between the driven element and the director element. Both of these distances will be 0. We will do the. calculatons soon. So far, this is a really simple antenna. The director will be 5 shorter than the driven element, and the reflector. Keep it simple. The design starts here. What you need to know. You will need to know 6 things, and you already know many of them. How to convert feet into inches. Multiply by 1. 2. Length of the driven element 4. Freq in MHz. Note The driven element will need to be cut in half and connected to the feed line. The center wire of the feed line goes to the. Use an insulator for holding the ends close together. The director will be 5 shorter than the driven element. This is not cut in half. The reflector will be 5 longer than the driven element. Shostakovich Piano Sonata 2 Pdf here. This is not cut in half. Wavelength 9. 84 Frequency in MHz. The spacing between the elements is 0. The following is an example of a 3 element yagi used in the. An HF antenna is done exactly the same way. You may decide. to go to the calculation section to let the computer do it all for you. The frequency of operation determines the driven element length. Length of the driven element 4. Freq in MHz. Example Assume you are using 1. MHz the OARS repeater freq. Length 4. 68Frequency in MHZ 4. Feet. Convert the 0. Crack Adobe Photoshop Elements 14 Serial Number. Feet to inches. 0. The full length of the driven element is 3 Feet plus 2 inches. Each side will be half that length, or 3. Feet2 1. 5. 88 Feet. Convert 0. 5. 88 feet to inches. Each half of the driven element is 1 Foot plus 7 inches long. That was the hardest calculation you will need to make. The length of the refelector is 5 longer than the driven element. Feet. Convert the 0. Feet to inches. 0. The reflector is 3 feet plus 4 inches long. Wireless Driver For Sony Vaio Windows 7 64 Bit there. The director is 5 shorter 9. Feet 3. 0. 17. 2 Feet. Convert 0. 0. 17. Feet to inches. 0. The director length is 3 Feet plus 0. The wavelength of this signal is 9. Freq in MHz. 9. Feet long for a full wavelength 6. Feet. Convert 0. 3. The seperation is 1 Foot plus 4 inches for each element. That is the completed design for the element lengths and spacing. Please go to the calculation section for the actual calculation. This program will give you the results so you do not have to do them yourself. Go directly to the calculation section. EZNEC can be found at www. You can download a free version and use it for as long as you like. You will soon find the limitations and want to up grade to the better version that. It is worth the money.