Re: [Elecraft] [k3] Isotropic Antenna

Years ago, a local ham who was acting as an Isotron distributor brought the 80 meter version to the club's Field Day. I discovered I got out a lot better by unscrewing the shield of the coax connector and just using the feedline as an antenna. :=) Alan N1AL On 04/09/2016 07:17 AM, Doug

Re: [Elecraft] [k3] Isotropic Antenna

The issue was June 1998. The article was focused on how to construct one. 73 (Wayne Green) wasn't interested in all the tables of performance data. He also wasn't interested in an excellent interview I did with Wayne and Eric early on. In so many words he was pretty clear that unless

Re: [Elecraft] [k3] Isotropic Antenna

The archives for 73 Magazine are online, so if you remember when, folks could read the article. https://archive.org/details/73-magazine wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 8, 2016, at 8:05 PM, Doug

Re: [Elecraft] [k3] Isotropic Antenna

I wrote an article for 73 many years ago where I effectively remade the Isotron antenna with parts from Home Depot. At the time, a 20 meter version could be built for about $15. I tested my version extensively and for the most part a dipole made with two Hamsticks was quite superior. They

Re: [Elecraft] [k3] Isotropic Antenna

This so-called "antenna" is at best dumb, and at worst a rip-off. As master antenna-designer N6BT wrote some years ago, "everything 'works,' even a light bulb." He demonstrated this by mounting a a light bulb on a wooden fencepost, feeding with coax that he had carefully choked so that the

[Elecraft] [k3] Isotropic Antenna

@mailman.qth.net 傳送日期︰ 2016年04月7日 (週四) 5:41 PM 主題︰ Re: [Elecraft] [k3] Isotropic Antenna Hi Bruce and others, I am sure that David talked about an Isotron antennas like this: https://www.isotronantennas.com/ I intensively tested/used this antenna in 90's on 40m (product from Sigi, DK9FN) a

Re: [Elecraft] [k3] Isotropic Antenna

Hi Bruce and others, I am sure that David talked about an Isotron antennas like this: https://www.isotronantennas.com/ I intensively tested/used this antenna in 90's on 40m (product from Sigi, DK9FN) and I have to say it is a nightmare in overall. From my own experiences the performance of this

Re: [Elecraft] [k3] Isotropic Antenna

: [Elecraft] [k3] Isotropic Antenna I have decades of experience with trying to operate out of 2nd story or higher apartments. My findings are the biggest difficulties are: - grounding - getting the antenna outside. To sum it up, the interiors of most apartments are essentially RF anechoic chambers

Re: [Elecraft] [k3] Isotropic Antenna

On 4/6/2016 1:05 PM, Bruce Nourish wrote: I'm a little puzzled by your question, and I suspect others are too. The isotropic antenna is a theoretical construct which is sometimes used as a baseline for the comparison of other antennas; it is not possible to build one. The most primitive antenna

Re: [Elecraft] [k3] Isotropic Antenna

> The isotropic antenna is a theoretical construct which is sometimes used as a baseline for the comparison of other antennas; it is not possible to build one. Actually you can come pretty close to an isotropic antenna by using two center fed dipoles arranged at 90 degrees to each other and

Re: [Elecraft] [k3] Isotropic Antenna

h Sent: Wednesday, April 6, 2016 1:06 PM To: David Guernsey; Elecraft Reflector Subject: Re: [Elecraft] [k3] Isotropic Antenna Hi David, I'm a little puzzled by your question, and I suspect others are too. The isotropic antenna is a theoretical construct which is sometimes used as a basel

Re: [Elecraft] [k3] Isotropic Antenna

MFJ makes a couple of magnetic loops with remote tuners etc. Pricey, but I have heard a few of them and they were doing OK - even the one on 40 meters. Bill W2BLC K-Line __ Elecraft mailing list Home:

Re: [Elecraft] [k3] Isotropic Antenna

Let me be the third to recommend a mag loop. Not too handy for contesting, VERY high Q. Therefore has a high 'fiddle factor'. But nonetheless very usable. My $0.02... 73 and gud DX Gil, W1RG

Re: [Elecraft] [k3] Isotropic Antenna

Bruce makes a good point, which I overlooked also. Yes, the isotropic antenna is just an ideal and where the term "dbi" comes from - the gain in DB over the theoretical isotropic 0db-gain antenna. I too intend to try a mag loop antenna at some point in time, probably the next time I get tired of

Re: [Elecraft] [k3] Isotropic Antenna - Isotron Antenna?

Just a wild guess but I think you meant an Isotron Antenna. You’re better off with an end fed wire and a tuner. It’ll work the same or better and be far cheaper. Mobile whip antennas are another less expensive solution for your location. 73 Gary, N7IR I live in a

Re: [Elecraft] [k3] Isotropic Antenna

Hi David, I'm a little puzzled by your question, and I suspect others are too. The isotropic antenna is a theoretical construct which is sometimes used as a baseline for the comparison of other antennas; it is not possible to build one. The most primitive antenna that can actually be built is a

Re: [Elecraft] [k3] Isotropic Antenna

I have decades of experience with trying to operate out of 2nd story or higher apartments. My findings are the biggest difficulties are: - grounding - getting the antenna outside. To sum it up, the interiors of most apartments are essentially RF anechoic chambers. This is due to the structures

[Elecraft] [k3] Isotropic Antenna

I live in a 2nd floor condo and am considering an isotropic antennaa on my balcony for 10/15/20 meters. Anybody have any experience with this type of antenna? 73 de Dave KJ6CBS __ Elecraft mailing list Home: