Chodzi mi o jakieś rozwiązanie na chwilę, i tak zamierzam zrobić porządną instalację za jakieś 2-3 miesiące. ... jej przeróbka bedzie pracochłonna,lecz zaczekam jeszcze z zamknięciem tematu. Tu nie chodzi o pracochłonność wykonania takiej anteny. Tu raczej chodzi o możliwości pomiarowe i możliwości obliczeniowe. Bez obrazy ale temat jest z tych trudnych. Samo wyliczenie możesz wykonać na programach do tego stworzonych, lecz wydaje mi się, że chyba nie będziesz w stanie wypełnić pól, aby wiedzieć - co i jak -. (chociaż się mogę mylić i piszę do znawcy tematu). Przykładowo w załączniku przesyłam dość średniej klasy Yagi.calculator, opracowany przez Australijczyka. Zobacz jak to wygląda i co możemy zrobić. Podpowiem, że samo zrobienie anteny to około 5 godzin dla wprawnego manualnie "zwykłego" człowieka. Na stronie ilpro nie widziałem jak ta antena miałaby wyglądać. Po samych nazwach wnioskuję, że jest to antena typu Yagi (YA-Yagi Antena) a 460 to chyba MHz i dalej np. 10 to ilość elementów. Na stronie wyczytałem, że anteny są zasilane poprzez koncentryk RG-58. Oj źle to wróży w tym ilpro na takich częstotliwościach. Pozdrawiam.
Yagi Calculator is freeware and copyright.
It is written by John Drew, VK5DJ, to encourage amateurs to experiment with DL6WU design antennas.
No responsiblity is taken for any problems encountered during the use of this design program. It has not been submitted to Guenter DL6WU for checking. The algorithms are based on the graphs published in the VHF Communicator March 1982 in an article entitled " Extremely Long Yagi Antennas " . I would not want to blame Guenter for any failings in this program.
Although the author has taken all reasonable precautions to ensure it operates in a range of machines (Win98SE and XP) it cannot be assumed that the program will operate in all Windows (TM) machines. Screen resizing problems may occur in wide screen displays. In addition, slower machines & lt; 1GHZ may experience delays in updating screens.
Many amateurs have fed back ideas on improvements. Where possible, and within my capacity to do so, these have been included.
Enjoy the results.
John VK5DJ
YAGI CALCULATOR by John Drew
Yagi Calculator is used by Amateur radio enthusiasts to generate data for the
construction of long yagi antennas for vhf and uhf use.
It produces yagis that meet the design criteria developed from the work of
Guenter Hoch as described in VHF Communications 3/82.
INSTALLATION
Run the installation setup program.
Have fun.
John Drew
VK5DJ
VERSION INFORMATION
* Version 2.0.0 first released windows version of this program.
* Version 2.0.1 various adjustments to the yagi design printout screen,
hopefully less ambiguous and includes boom drilling points rather than boom length.
* Version 2.0.2 includes a differentiation between the close box and the 'BACK' button.
* Version 2.0.3 fixes a minor bug in the save and recover data.
* Version 2.0.4 provides for elements that are insulated from a metal boom but pass through it. In addition the entry box of boom metal has been error protected. A blank box would have crashed the program. A method of choosing beam spacing has been added and helpful diagrams to clarify vertical and horizontal spacing.
* Version 2.0.5 final adjustment to stacking and update help file. Release date 20/3/03
* Version 2.0.6 minor fix in " save YO file " screen (now defaults to current directory and has option to see *.yag or *.*), some more info in the help file especially about the construction and feed of dipoles. Adjusted defaults to press the point that the design is for long yagis.
Version 2.0.7 has introduced a capacity to calculate the resonant frequency of a measured beam. It assumes some features of the DL6WU design but would give at least a realistic indication of frequency for all yagis. It also has the capacity to convert a beam from one kind of construction to another (e.g. insulated elements style to through boom elements). Yagi Calculator can now read in .YAG files created by YO. There is an ability to convert beams of differing construction to and from insulated construction and use YO to optimise a through boom design by utilising it in insulated form, then bring it back in and reconvert. (long winded but I hope you get the idea.)
Version 2.0.8 minor changes include a dBi indication in the design yagi output. Alternative gain algorithms are offered in the gain page. Some mods to the help file.
Version 2.0.9 add facility to calculate the length of a 4:1 balun using choice of coax or user input of velocity factor. Further updates to help file. A gif picture of a 4:1 coax balun has been added to the zip file.
Version 2.1.0 provides for a screen that shows the construction of a 4:1 balun
Version 2.3.0 now includes SWR calculations and coax losses and has been changed to full screen operation. The program was compiled in 1600*1200 (my definition of choice). It will autosize to other definitions but I notice that some of the images can look a bit scruffy under lower definition. This does not affect operation in any significant way other than affecting my pride. To avoid multiple screens active at once I have adopted a different strategy to change from feature to feature. As a result it is now only possible to change to another major function from the opening screen, but the help file is available from each of them as before.
Version 2.3.2b minor fixes, including finding the help file and the stacking images. Version c,d,e fixed display issues
Version 2.3.3 Added capacity to print the balun. Added alternate suggested element sizes, folded dipole spread and dipole gap for frequencies other than 144. Values change on leaving the frequency input box. They may still be editted to suit your materials.