Re: [Elecraft] End fed antenna - length and SWR

2013-10-08 Thread Dick Lindzen
All these antennas are easy to model with EZNEC. You may find some of the results surprising. 73, Dick WO1I At 11:55 PM 10/8/2013, Rick Dettinger wrote: I scaled the 44 feet up 4 times to 176 feet to get a reasonable match on 160 meters with my poor ground system. Its 55 feet high with the r

Re: [Elecraft] End fed antenna - length and SWR

2013-10-08 Thread Rick Dettinger
I scaled the 44 feet up 4 times to 176 feet to get a reasonable match on 160 meters with my poor ground system. Its 55 feet high with the rest sloping somewhat down to about 25 feet. It is tuned at the base with a remote coupler. There is 140 feet of coax berried from the coupler to my 3rd floor

Re: [Elecraft] End fed antenna - length and SWR

2013-10-08 Thread Ariel Jacala
My version using the same matchbox is 44 feet long and tunes well 40 - 6 meters and a piece of cake for the KX3. It is loud on 30m Ariel NY4G Sent from my iPhone On Oct 8, 2013, at 9:40 PM, "Esquer Dave" wrote: > Hi folks, > > Newbie HF Dave here again with an end fed antenna design que

Re: [Elecraft] End fed antenna - length and SWR

2013-10-08 Thread Phil Kane
On 10/8/2013 7:58 PM, Ron D'Eau Claire wrote: > You don't mention a ground/counterpoise. With a 66-foot radiator, that > becomes important on 40 and substantially more so on 80. I am using the "stock" HARES antenna. It consists of a 30-ft length of coax between the antenna tuner and the UNUN an

Re: [Elecraft] End fed antenna - length and SWR

2013-10-08 Thread Ron D'Eau Claire
AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire Sent: Tuesday, October 08, 2013 7:59 PM To: 'Esquer Dave'; elecraft@mailman.qth.net Subject: Re: [Elecraft] End fed antenna - length and SWR

Re: [Elecraft] End fed antenna - length and SWR

2013-10-08 Thread Ron D'Eau Claire
ecraft@mailman.qth.net Subject: [Elecraft] End fed antenna - length and SWR Hi folks, Newbie HF Dave here again with an end fed antenna design question. I have an EARCH (Emergency Amateur Radio Club, Hawaii) end fed 6-40 meter multiband HF antenna. Part of the design is the 9:1 UNUN (unbalanced

Re: [Elecraft] End fed antenna - length and SWR

2013-10-08 Thread kevinr
Hi Dave, If you want to check in with anyone in Oregon you may want to change the orientation of your antenna. You are at right angles to the main land or Asia with that wire the way it is now. There just aren't a lot of folks north and south of you. Accept geography and try another dir

[Elecraft] End fed antenna - length and SWR

2013-10-08 Thread Esquer Dave
Hi folks, Newbie HF Dave here again with an end fed antenna design question. I have an EARCH (Emergency Amateur Radio Club, Hawaii) end fed 6-40 meter multiband HF antenna. Part of the design is the 9:1 UNUN (unbalanced to unbalanced) toroid matching transformer. I have replaced the 30' wire w