Playing with end-fed wire antennas and 9:1 ununs - KB6NU's Ham Radio Blog - amateur radio end fed antenna


amateur radio end fed antenna - How-To: Make a Multiband EFHWA for Amateur Ham Radio | Make:

End-fed wire antennas. While dipoles are very efficient antennas, they are not the only way to go. Some houses don’t really lend themselves to installing a half-wave dipole. If you only have one support an end-fed antenna may suit you better. But be warned – end-fed antennas can be noisier and also cause more EMC/interference problems. End-Fed Antenna projects and plans is a curation of 60 resources about, QRO End Fed Half Wave Antenna Coupler, W3EDP Antenna, N2CX on End-Fed Halfwave Antennas, Endfed wire antenna tuner by KC8AON, End Fed Half Wave Antenna Coupler. Resources listed under End-Fed Antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators.

Mar 09, 2010 · For portable radio operation, I like End-Fed Half-Wavelength Antennas (EFHWA, pronounced “EF-WAH”). This type of antenna is similar to the common half-wavelength dipole, but with one significant advantage. A dipole has its feedpoint (where it connects to the radio) in the middle of the antenna, but an EFHWA’s feedpoint is at one end. $\begingroup$ @Phil_12d3 Usually when one talks about random-wire antennas, one talks about end-fed wire antennas. If it isn't end-fed, then it's usually near-center fed and becomes a dipole antenna instead. (That dipole may be cut to length on a specific frequency or it may be "however long you can make it", but it's still a dipole, not an end.

Aug 12, 2016 · For the past couple of weeks, I’ve been playing with end-fed wire antennas. Before I get into the nitty-gritty details, let me first make a distinction between end-fed half-wave antennas, such as the ones sold by LNR Precision and end-fed wires that use some kind of tuning to achieve a 50 Ω. However, we can reduce the space needed to a quarter wavelength if we decide to use an end fed antenna. The end fed antenna is essentially half a dipole, it uses a good earth connection to complete the arraignment. Below is one example of how to build an 80 metre band long wire antenna for a .