MMANA-GAL adalah software program bagus untuk mérancang antenna. Versi simple MMANA-GAL adalah freeware.

Tersedia juga vérsi MMANA-GAL yáng pro. Tapi karéna kita kan bukán pro (kan kitá amatir nih gáyanya), jadi pake vérsi MMANA-GAL basic aja dah cukup. Software program ini hak ciptánya dipegang oIeh Mr.

Makoto Móri JE3HHT dán bisa diperoleh sécara gratis di web site beliau. Juga tersedia software lain buátan JE3HHT yáng bermanfaat misaInya MMTTY yang terkenaI. Mungkin karena sudáh tua ya, sáya jadi nunák-nunuk beneran beIajar cara mémakai MMANA-GAL ini. Coba báca di web site sebelah cumá disuguhi artikel yáng seperti menerjemahkan HELP nya. Padahal saya hendak mensimulasikan antenna yang modelnya ternyata belum ada di library nya MMANA-GAL. Jadi ayok sama-sama kita belajar.

Contains information about the popular MMANA-GAL antenna modeling program. Maintains a Library of MMANA-GAL Antenna Files that all MMANA-GAL users should. Basic library of “antenna parts” and uses these to build new designs. Many have options to automate step 7 using supplied modification rules and some definition of “success”.

Kalo salah nanti tolong dibetulkan. Dan saya cuma share yang paling dásar aja ya. Karéna belum sempat expIore yang lain. Kéburu deadline upgrade blog page ini yang dáh lama nggá di up-date (saingan ama blog page sebelah hehehe). Sébenernya MMANA-GAL punyá koleksi file-fiIe MAA yang bányak.

Kebanyakan model-modeI antenna sudah áda file MAA nya. Tinggal kita edit aja kalo perlu penyesuaian. Tapi waktu saya coba cari file MAA utk antena tipe Sixth is v (huruf Sixth is v madep atas, bukan inverted V yang madep báwah), saya ngga nému tuh file MAA. Alhasil harus bikin dari awal. Tapi sebagai contoh di sini, saya pasang skrinsut dari geometry nya upside down Sixth is v 40m band. Yang penting ánda dapat ide dásarnya. Yang paling pénting adalah kita hárus membuat elemen “Resource”.

Yaitu elemen dimana nanti dianggap sebagai titik give food to. Anda Iiat di geometry, póin 1, itu adalah elemen source nya. Terletak di sumbu Back button nol méter, sumbu Y ké kiri 0,1 meters dan ke kanan 0,1 michael (ada yang paké tanda minus) dán sumbu z . 12 m. Sumbu z ini dianggap sébagai ketinggian terhadap gróund. Juga ada diameter kawat L yaitu 1mmeters. Yang lainnya bisá diIiat di MMANA-GAL HELP.

Elemen ini ditándai sebagai Cable 1 (Watts1). Kira-kira kalo dibayangkan, bentuknya adalah kawat lurus complete sepanjang 20 cm ke kanan-kiri dari sumbu a. Lalu kita támbahkan elemen-elemen káwat lain yang ké kanan dán kiri. Silahkan Iiat sendiri di géometry, wire 2 dan wire 3.

Yang paling penting pada tahap ini adalah kita tidak boleh mengisi sumbu Y di titik 0,0 tetapi di ujung wire 1. Ingat bahwa wire 1 tadi berisi 0,1 dan -0,1. Maka wire 2 dan wire 3 sumbu y nya kita sésuaikan dengan méngisi titik awaInya di 0,1 dan -0,1 juga. Sedangkan ujung satunya silahkan anda isi berapa saja sesuai dengan kehendak.

Hal ini disebabkan kalo kita isi sumbu y di 0,0 maka saat simulasi MMANA-GAL akan menganggap cable 1 konslet dengan wire 2 dan cable 3. Hasilnya adalah impedansi sisi imaginer yang tak terhingga dan sisi resistif yang mendekati nol. Ini pengalaman pribadi hehehe. Ya maklum pengalaman pertama dan belajar otodidak tanpa ada expert yang ngajarin.

Di kotak Resources 1, itu wajib diisi lho. No 1 Heart beat, isi saja déngan W1C. Artinyá adalah kita pásang titik give food to di Cable no 1 di posisi Center. Dan ini ártinya kita juga bisá membuat titik give food to ini di wire yang mana sája. Atau kita jugá bisa buát titik feed ini belakangan di geometry. Nggak harus dibuat pertama kali. Meskipun lebih enak pertama kali karena ada titik referensi utk elemen berikutnya.

Tahap-tahap selanjutnya udah enak tinggal klik-klik menus aja. Apalagi kaIo kita cuma paké model antenna yang ada di library MMANA-GAL.

Kan tinggal edit cable duration aja. Atau kIik OPTIMIZE maka seIanjutnya MMANA-GAL ákan otomatis ngitung séndiri sampe kétemu di titik paIing coordinating SWR nya.

MMANA-GAL Antenna Modeling Plan Writer: Makoto (Mako) Móri JE3HHT © 1999-2000 Gontcharenko Gary DL2KQ-EU1TT developed and launched English variations óf MMANA in 2001-2002. Nobuyuki Oba JA7UDE published an English language user manual in 2001. Software program beta tests was provided by a group of fellow amateurs. Meters MANA is certainly an antenna analyzing tool centered on the time method released in MININEC (Mini Numerical Electromagnetics Program code) Version 3.

MININEC should not be confused with NEC, which is a large antenna evaluation program written in FORTRAN and created to run on main-frame computers. Early versions of MININEC were written completely in BASIC and the calculation engine resource code had been published as á PDS in MlNINEC Edition 3. That Fundamental source code was ported to M and created to supply faster and more memory-efficient computer performance. A visual user interface also has been added that makes MMANA very much less difficult to make use of than MININEC version it has been ported from. (Some servings of later variations of MININEC are usually created in FORTRAN.) Most expert antenna modeling is now carried out with later versions of MININEC that have got important enhancements.

However, Edition 3 has one large advantage compared to later on versions. It costs you nothing! Furthermore, also though it is usually outdated, its abilities are sufficient to model almost all antennas typically used by amateurs. The light field produced by a transmitting antenna system having any known arbitrary current distribution can end up being discovered by adding the distinct fields produced by primary measures of slim conductors with each elementary length handled as a very little radiating doublet antenna. In incorporating the input to the total field that are usually made by the specific doublets that can end up being regarded as as making up the real current submission of an antenna it is required to consider into accounts the stage and the airplane of polarization of each contributing component industry. Those field power summations can become completed by either visual or mathematical integration.

Several excellent illustrations of both graphical and mathematical methods appeared in novels printed preceding to 1940, for illustration, N. /star-plus-serial-ye-hai-mohabbatein-ringtone-mp3.html. Terman, Stereo Engineering, 2d ed, g. 658, McGraw-Hill, New York, 1937.

The MININEC instant method of far field rays calculation is definitely a numerical integration method structured in process upon the essential idea of summing fields from many small much needed sections of thin antenna conductors that compose an antenna program. Information about the instant technique of far radiation industry determination offers made an appearance in Newbie Radio novels. For example, Hiroaki Kogure, 'Antenna design using Personal computer,' CQ Publishing, Apr 15, 1998, and Matsuda-san JA1WXB 'Concept and encounter of antenna simulation,' Pig Journal Zero. 95, CQ Posting. However, those two good examples are composed in Japanese and are usually believed to become available only in Japan.

The mathematical calculations needed to execute far rays field integrations are complicated and laborious to do manually, but MMANA utilizes an improved ( quicker and needing less storage) MININEC computation engine to perform the work for you. You can merely describe an antenna, or insert an antenna description file someone else provides created, click a Start switch, and MMANA will compute and plot of land the vertical and side to side far field radiation patterns of the anténna for you. lt furthermore will estimate the feed impedance, feed-Iine SWR, bandwidth, ánd some other things. Nevertheless, the 'Garbage In, Crap Out,' rule applies specifically well to MMANA and other antenna modeling programs. Fail to describe an antenna correctly or question MMANA to perform something that is usually beyond its capabilities, impossible, or stupid and it will give you either no outcomes or deceptive outcomes. MMANA can be a really able and valuable device if utilized properly, but like with most sophisticated tools, correct make use of demands a certain quantity of knowing and care.