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Antena End Fed – wielopasmowa antena, która dla wybranych pasm będzie pracować bez konieczności stosowania skrzynki antenowej. Świetna antena do pracy w terenie, podczas aktywacji gmin PGA, parków jak również szczytów górskich w programie SOTA. Lekka antena drutowa zasilana z jednego końca.
- Antena Mini Whip
Mini whip – jest aktywną anteną odbiorczą do nasłuchu pasm...
- Manipulator Dwudźwigniowy
Kolejny etap, trochę dla zrelaksowania po pierwszym...
- Analizator-antenowy-wg-eu1ky
Zestaw do samodzielnego montażu - Analizator antenowy wg...
- 50 Ohm
Dla wszystkich zwolenniczek i zwolenników konstrukcji...
- Bias Tee
Bias Tee - trójnik pozwalający w łatwy sposób na...
- Przełącznik antenowy KF
Radiokomunikacja jest Tobie bliska? Zapraszamy do zapoznania...
- Antena Mini Whip
Video Analysis of Half-Wave Dipole Antennas. In this video, we go over the short-dipole antenna, the half-wave dipole antenna and the general dipole antenna. The idea is to give an intuitive overview of the first 3 antennas we've discussed.
This project assembles a 49:1 ferrite-core (“FT”) type #43 transformer that matches 50 ohm input to 2500 ohm end fed antenna. It is optimized for 3.5/7/10/14 MHz but will work reasonably well on all amateur bands from 80 meters thru 10 meters with a 135 foot length of wire and a short connection to ground.
If you attended Field Day 2022, you may have been one of the students that learned how to build an end fed half wave Antenna and actually got to build one and take it home. For those that were not able to do so, this page is for you.
antenna is based on any number of parameters: specifically, the frequency or band of frequencies, location, directivity, and intended power range. This paper discusses some of the more important aspects of the End Fed Half Wave (EFHW) dipole antenna. The frequency band is HF (40 meters), and the intended power is 100 watts.
A half wave dipole antenna is an antenna constructed using a conductive tube or metallic element that has a length equal to the electrical half wavelength. The excitation to the half wave dipole is provided at the centre.
Half-wave dipoles are easy to install and erect and are not nearly as likely as end-fed wires to give rise to EMC/interference problems. As the name suggests, a dipole has two ‘poles’ or sections to the radiating element.