Search results with tag "End fed"
Building an End Fed Antenna - ogdenarc.org
www.ogdenarc.orgHow to Feed an End Fed Wire? The Balun or in this case the Unun The end fed wire regardless of its length presents a high impedance to the feedline. If the intention is to build a ½ wave mono band antenna then it is necessary to attach a 48:1 unun at …
The End Fed Half Wave Antenna - gnarc.org
www.gnarc.orgIf fed off center, say at 30%-70% point, impedance is approximately 200 ohms and can be used on multiple bands with an antenna tuner. Works with a 4:1 UNUN. See this link for more info. 4:1 impedance ratio is 2:1 turns ratio. If fed at the end (a.k.a EFHW), antenna impedance is in the 2000-4000 ohms range.
THE COBWEBB ANTENNA - Kerry Amateur Radio Group
www.kerryamateurradiogroup.comantenna, which provides maximum radiation efficiency and the absolute minimum of interference problems. TVI fears have encouraged many people to shy away from the HF bands, in favour of VHF, UHF or 160 metres. New stations often begin operating on HF using an end fed wire or a vertical antenna, a recipe for disaster, sometimes even on QRP.
Low Power FM Antenna Systems
www.jampro.comNotes: 1. Weights and wind loads contact factory. 2. Wind loads based on 50/33 PSF (98 MHz, midband) 3. Feed points, when end fed is 3 ft below bottom bay; when