Re: [IRCA] EWE antenna questions

2008-07-08 Thread John H. Bryant
Dave, Those are good questions about impedance matchers. There are a couple of articles of mine (with Lowfer Guru Bill Bowers) on rolling your own impedance matching unhits... they cover all of your questions and are on the IRCA reprint disks, I believe. They are also available at the Equipm

Re: [IRCA] EWE antenna questions

2008-07-08 Thread HASCALL, DAVID CIV DFAS
: 9 Date: Tue, 08 Jul 2008 05:17:22 + From: Nick Hall-Patch <[EMAIL PROTECTED]> Subject: Re: [IRCA] EWE antenna questions To: Mailing list for the International Radio Club of America Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="us-ascii&qu

Re: [IRCA] EWE antenna questions (Ferrite rings)

2008-07-08 Thread HASCALL, DAVID CIV DFAS
Thanks for the info, Barry. 73, Dave in Indy -- Message: 6 Date: Mon, 7 Jul 2008 19:11:25 +0100 (BST) From: BARRY DAVIES <[EMAIL PROTECTED]> Subject: Re: [IRCA] EWE antenna questions (Ferrite rings) To: Mailing list for the International Radio Club of A

Re: [IRCA] EWE antenna questions

2008-07-08 Thread Gil Stacy
David, I use Amidon ferrite beads to make my transformer. I also use military commo wire to feed my rx antenna's. Here is how Gary Breed, the K9AY loop inventor describes making the transformer: "My K9AY Loop and 9:1 Beverage transformers are "binocular" using two large 77 material beads (Amidon

Re: [IRCA] EWE antenna questions

2008-07-07 Thread Nick Hall-Patch
At 17:12 7/7/2008, you wrote: > What I'm less clear about is the >ferrite ring / balun / transformer. Where can you get these at? Does >anyone have part numbers or links to online stores? When ordering >stuff, I'm always leery of minimum orders and being on a tight budget >often stifles stuff l

Re: [IRCA] EWE antenna questions (Ferrite rings)

2008-07-07 Thread Gil Stacy
Barry, I found a description of Paul's set-up: "I'm using an AOR AR7030 receiver with a EWE antenna approx (since I've never actually measured it ) 3.5 m high and 8 m long. KVNS is a reasonably frequent visitor here." ! 73, Gil ___ IRCA mailing list IRCA

Re: [IRCA] EWE antenna questions (Ferrite rings)

2008-07-07 Thread Gil Stacy
Barry, Paul Crankshaw of Troon, Scotland, does a lot of heavy duty MW dxing to the U.S. using a modest ewe. Perhaps he can share his set up with you. I searched the old files and couldn't find his parameters. Good luck. 73 Gil ___ IRCA mailing list IRCA

Re: [IRCA] EWE antenna questions (Ferrite rings)

2008-07-07 Thread BARRY DAVIES
Hello Dave Here is the kind of store we get them in the UK. http://www.maplin.co.uk/Module.aspx?ModuleNo=29788&criteria=ferrite%20ring&doy=7m7 Barry "HASCALL, DAVID CIV DFAS" <[EMAIL PROTECTED]> wrote: Hi; I have been reading lots about the construction of EWE antennas over the past few

[IRCA] EWE antenna questions

2008-07-07 Thread HASCALL, DAVID CIV DFAS
Hi; I have been reading lots about the construction of EWE antennas over the past few days. I understand the need for a good ground, terminating (variable) resistors and so on. What I'm less clear about is the ferrite ring / balun / transformer. Where can you get these at? Does anyone have par