Re: [Elecraft] Long wire antennas MORE

And it looks now like we are -way- past the OT posting limit. :-) Let's wind down the 'Long Wire' thread now and give our other Elecraft list readers a rest from email overload. Thread closed. 73, Eric Moderator etc. elecraft.com _..._ > On Jan 13, 2018, at 6:01 PM, Wes Stewart

Re: [Elecraft] Long wire antennas MORE

I thought to add my two cents then I figured I ain't gonna smack this tar baby.;-) On 1/13/2018 1:57 PM, David Gilbert wrote: "​Isn't Semantics fun?​" True.  ;) Well, I rarely get hung up on the terms people use as long as we all know what we mean when we call it whatever we are calling

Re: [Elecraft] Long wire antennas MORE

"​Isn't Semantics fun?​" True.  ;) Well, I rarely get hung up on the terms people use as long as we all know what we mean when we call it whatever we are calling it.  My problem with the term "counterpoise" as applied to an EFHW antenna is that it pretends that the extra length of wire is

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A ​ Rose by any other name is still a Rose.​ ​Isn't Semantics fun?​ On Sat, Jan 13, 2018 at 1:37 PM, David Gilbert wrote: > > > Calling it a counterpoise is a misnomer. > > Dave AB7E > > > > >> __ Elecraft

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You are both perpetuating the confusion here by pretending that these are two different forms of antenna. Of course the "counterpoise" will radiate.  It will radiate energy proportional to the current in it, and the longer its length the higher the current will be.  That's EXACTLY the same

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I once heard LB Cebik give a 'balloon' analogy of directional or gain antennas. He said the radiation pattern is like a balloon - you have to squeeze it somewhere to get it to expand in another direction. There is no overall gain, it just directs the radiation in one or more directions at the

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On 1/13/2018 07:44, Don Wilhelm wrote: All information I have seen says that the counterpoise needed for an EFHW is 0.05 wavelength - at 40 meters, that is about 3.5 feet. If you make it longer than that, it becomes an offset center fed antenna, longer than a halfwave, in other words, it is a

Re: [Elecraft] Long wire antennas MORE

Dave, All information I have seen says that the counterpoise needed for an EFHW is 0.05 wavelength - at 40 meters, that is about 3.5 feet. If you make it longer than that, it becomes an offset center fed antenna, longer than a halfwave, in other words, it is a random length wire. Both the

Re: [Elecraft] Long wire antennas MORE

anuary 12, 2018 4:11 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Long wire antennas MORE A mistaken idea that many Hams get is that a wire antenna has no radiation in the "nulls". For example, a half-wave wire is often thought of as having no energy radiated off of its en

Re: [Elecraft] Long wire antennas MORE

ers" can handle. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Gilbert Sent: Thursday, January 11, 2018 11:41 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Long wire antennas MORE There i

Re: [Elecraft] Long wire antennas MORE

-Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire Sent: Friday, January 12, 2018 4:11 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Long wire antennas MORE A mistaken idea that many Hams get

Re: [Elecraft] Long wire antennas MORE

et] On Behalf Of David Gilbert Sent: Thursday, January 11, 2018 11:41 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Long wire antennas MORE There is only a fixed amount of total energy contained in all the lobes of an antenna. You almost definitely did get lots of lobes ... b

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Well, they never wandered out to Bowman Flats on Old Airport Road.  Apparently, I could have used them. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 1/12/2018 11:37 AM, Dennis Moore wrote: More common than you think :-)  There are eight of them not far from my place.

Re: [Elecraft] Long wire antennas MORE

lman.qth.net> on behalf of brian <als...@comcast.net> Sent: Friday, January 12, 2018 9:35 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Long wire antennas MORE Just for kicks, I modeled it with a 1/4 wave counter poise up 12' up from ground. 14 MHz. Unfortunately where

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For transmitting, that 10-mile long conductor would be close to an end-fed full-wave, and perhaps a flame-thrower, for SAQ [17 KHz].  On 20 meters, it would be an end-fed 805 wavelength conductor [wonder how that would model in EZNEC?], all the power dissipated in the first few hundred meters

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More common than you think :-)  There are eight of them not far from my place. http://www.pawsweb.org/ Dennis NJ6G On 1/12/2018 11:32, Fred Jensen wrote: This could account for why my 2 wavelength Beverage never seemed to perform well on 80 when we lived in Auburn CA.  Elephants are very

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d 73, Fred KE7X OAE From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> on behalf of brian <als...@comcast.net> Sent: Friday, January 12, 2018 9:35 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Long wire antennas

Re: [Elecraft] Long wire antennas MORE

This could account for why my 2 wavelength Beverage never seemed to perform well on 80 when we lived in Auburn CA.  Elephants are very uncommon in the foothills of the Sierra Nevada. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 1/11/2018 8:41 PM, William Levy wrote: Best of all

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Just for kicks, I modeled it with a 1/4 wave counter poise up 12' up from ground. 14 MHz. Unfortunately where ground is a question. What the parameters for "ground" is a good question. Snow doesn't look like earth. Anyhow the impedance came out 11470 ohms +j 17880. The horizontal antenna

[Elecraft] Long wire antennas MORE

I don't know much about antennas, but in the late 60s or early 70s I worked a station on 20 meters with a 10 mile long (long wire antenna). That was KC4AAD in Antarctica. I don't have the QSL card I got back then, but was a picture of part of the antenna. I know it was 20 meters, because I only

[Elecraft] Long wire antennas MORE

Plus the simple dipole in your example has a lot less RF coming back into the shack. John KK9A David Gilbert wrote: There is only a fixed amount of total energy contained in all the lobes of an antenna. You almost definitely did get lots of lobes ... but you also got lots of nulls that

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Bill, The situation you had was essentially a point to point communications setup. It worked well for you. Commercial installations long ago used long wire antennas (including rhombics) pointed in specific directions to assure good point to point communications. It isn't a "work all

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There is only a fixed amount of total energy contained in all the lobes of an antenna.  You almost definitely did get lots of lobes ... but you also got lots of nulls that exactly offset all those lobes.  You just never heard the the hams that were in those nulls and they never heard you.  

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As they say in real estate, location, location, location. On 1/11/2018 9:41 PM, William Levy wrote: I pointed the antenna at the USA from Kenya. There was nobody in the USA that could not hear me. __ Elecraft mailing list Home:

[Elecraft] Long wire antennas MORE

Let me tell you what I observed with 700 feet of long wire. QSB disappeared. What faded on one end was rocketing in on the other end. I pointed the antenna at the USA from Kenya. There was nobody in the USA that could not hear me. I ran 100 watts. I had lobes going in every direction. I had