- DL6WU YAGI DESIGN PROGRAM ANDROID
- DL6WU YAGI DESIGN PROGRAM CODE
- DL6WU YAGI DESIGN PROGRAM TV
If you run Vista I recommend you run it as Administrator. No changes were made to the essential algorithms apart from the additions needed to cater for alternate boom and element material shapes.
DL6WU YAGI DESIGN PROGRAM CODE
You can download it by clicking on or scanning the QR code below.ĭon't forget to rate and to leave a review about the app.There have been minor fixes to improve reliability in different machines and better program flow.
DL6WU YAGI DESIGN PROGRAM ANDROID
However, the best solution should be recognized as the optimization of results in HFSS, since this program does not have the disadvantages inherent in MMANA and allows you to directly take into account the boom-correction.įor smartphones owners with the Android operating system, the calculation of the Yagi-Uda antenna of the DL6WU design is available in the Cantennator app. And this is confirmed by the analysis in MMANA of the models that the Yagi Calculator outputs, as well as experimental practical measurements of the DL6WU. Is it possible to replace a straight split dipole with a folded one? The author of the Yagi Calculator program, VK5DJ, suggest using a folded dipole about 2% longer than the straight one when replacing. Since the straight dipole must be isolated from the boom, it is calculated according to the second option, if the first mounting option takes place for the remaining elements. In this case, the influence of the boom can be neglected and the value of the boom correction is assumed to be zero (option 3).
The elements are mounted on a dielectric boom (for example, on a pine bar) or inserted into it, or on a metal one, but separated from it by a dielectric spacer with a thickness of at least half the thickness of the boom. The boom-correction is reduced by the same amount when mounting elements above the boom, which makes it possible to unite these two mounting methods into one option (option 2). In this case, the boom-correction value is approximately 50% of the first option value. The elements pass through the middle of the metal boom, but are electrically isolated from it, for example by means of plastic inserts. In this case, the boom-correction value is maximum (option 1). The elements pass through the middle of the metal boom and are electrically connected to it by crimping or soldering. Three different cases of mounting elements on the antenna boom can be separated: We have to resort to empirical methods and formulas in calculating boom correction, based on large arrays of practical measurements of real antennas, which DL6WU did long time ago. Wire antenna simulators based on the NEC core, such as 4NEC2, cannot take this correction into account, which is one of the problems in the design of the Yagi-Uda antenna. This is called a correction for the influence of the boom or boom-correction. To maintain its electrical length, the element must be physically lengthened. This leads to a decrease in the inductance per length in this place, which is equivalent to shortening the element. With a metal boom, a local thickening of the antenna elements occurs at the place of installation on the boom. Let's pay special attention to boom-correction. Also you can use T-match or Г-match as alternate matching methods at your own discretion. It is only necessary to choose the material of the internal insulation of the cable. 
One of the possible matching schemes using a (3λ/4+λ/4) cable-loop for a straight dipole is calculated in this calculator.
DL6WU YAGI DESIGN PROGRAM TV
For the On Air TV reception, you can use the optimized wideband HDTV Yagi-Uda antenna.Īntenna has a straight center fed half-wave dipole. The DL6WU antenna is not recommended for HDTV. Limitations and features of antenna calculations
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