tag:blogger.com,1999:blog-5480750694693825336.post2589647927190027886..comments2024-03-21T00:59:58.137-07:00Comments on G0KYA's Amateur Radio Blog: A portable multi-band End-Fed Half Wave (EFHW) antenna for 40-10mSteve Nicholshttp://www.blogger.com/profile/03564402221894277279noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-5480750694693825336.post-19234354121019380902020-07-15T09:02:06.957-07:002020-07-15T09:02:06.957-07:00T200-2 toroids (red) are made of iron power and go...T200-2 toroids (red) are made of iron power and good for making tuned circuits, such as used in the monoband EFHW. FT240-43 toroids are made of ferrite and are better suited to wideband transformers, such as the multiband EFW. Hope that helps.Steve Nicholshttps://www.blogger.com/profile/03564402221894277279noreply@blogger.comtag:blogger.com,1999:blog-5480750694693825336.post-56941151315535182832020-07-14T19:47:49.223-07:002020-07-14T19:47:49.223-07:00Steve loved talk to HARS.Sometimes you recommend 2...Steve loved talk to HARS.Sometimes you recommend 200-2 toroids and sometimes 243-43, what is difference please M0OLGAnonymoushttps://www.blogger.com/profile/04878513419778583440noreply@blogger.comtag:blogger.com,1999:blog-5480750694693825336.post-418070788379904022019-04-27T04:50:26.356-07:002019-04-27T04:50:26.356-07:00Nice blog, thanks for sharing such a nice blog.Nice blog, thanks for sharing such a nice blog.vasanthttps://bookmyreviews.com/best-portable-am-fm-radio/noreply@blogger.comtag:blogger.com,1999:blog-5480750694693825336.post-51926452672589820082019-04-12T05:28:17.064-07:002019-04-12T05:28:17.064-07:00See G3TXQ's site at http://www.karinya.net/g3t...See G3TXQ's site at http://www.karinya.net/g3txq/chokes/. It depends on the frequency you are operating on. Too for for >4 KOhms would require 10 turns of RG58 on a 4.25 inch former or 12 turns on an FT240-61 Toroid at 14MHz.Steve Nicholshttps://www.blogger.com/profile/03564402221894277279noreply@blogger.comtag:blogger.com,1999:blog-5480750694693825336.post-17833868074654773822019-04-12T04:24:02.250-07:002019-04-12T04:24:02.250-07:00What kind of choke should be used? A few loops of ...What kind of choke should be used? A few loops of coax, some ferrite beads, something else? Thanks.Anonymousnoreply@blogger.com