Witryna3 lut 2009 · Being voltage fed or high impedance feed is a must for this kind of antenna if it is to work well. If you were to use a current feed, the whole situation falls apart. ... collinear with gain, the Double Extended Zepp . Last edited: Jan 28, 2009. Reply. Lazybones1222 W9WDX Amateur Radio Club Member. Apr 6, 2005 948 25 28 … WitrynaDual impedance and dual network are terms used in electronic network analysis.The dual of an impedance is its reciprocal, or algebraic inverse ′ =.For this reason, the …
Feeding the EDZ - on5au.be
WitrynaAs long as hams wish to use or experiment with antennas like the Extended Double Zepp and others that present complex feedpoint impedances, stub matching will … WitrynaThe Double Zepp (Doublet) antenna is a classical antenna in our series of HS4 Legendary Multiband Wire Antennas. It covers 7 bands, 10-12-15-17-20-40-80m. Unlike typical antennas, this is a non-resonant antenna. The performance characteristics are quite outstanding. assisi hair salon
Random length multi band dipole (with ATU) - SOTA Reflector
Witryna19 cze 2024 · If each side of the remaining antenna is about 5/8-λ long, this creates the “ Extended Double Zepp ” or EDZ. The length of the feed line also performs an … http://n3ujj.com/manuals/Intro%20to%20Antennas.pdf Witryna24 lis 2016 · To calculate different lenghts I found the “Doppelzepp-Rechner” of DK1RP very helpful. You can easily find out on which bands the antenna is going to work. High impedance (marked in red in the results) should of course be avoided. Green is fine. You need to know the velocity factor (Verkürzungsfaktor) of the feederline. assisi health