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@ Marconi, I had to re read your post several times as i did get the wrong impression. But after reading it again, im happy ! Cause you are saying it "violates" any rules etc. That means: You understand some of the precautions mentioned. And that makes me happy, cause it will lead to "better"...

Donald, Almost forgot...thank you for joining the conversation ! perhaps its best to visualize a yagi beam.. Normally we rotate the antenna in "azimuth" But now rotate it in "elevation" Im sure you can imagine the "downward" main lob if we point it towards the ground. And upwards (vica versa...

@ homer bb, Especially cause you used the words "overall" I tend to think you understand rather well :) @ Eddie, pse allow me to reply a bit later...kids to bed. @ Shockwave, You are searching in the wrong direction. This is what Sirio does as well with the provided plot of the Gainmaster...

Hello Eddie, The model used for gain figures etc is an copy of the commercial availible antenna. Im not going to say witch one, but i used several availible types. The reason im not going to is: Im confident there will be a manufacturer "claiming" owh well...he used antenna "a", But if you...

Hello Bob, The more you dig into antennas the more you will find out most antennas are not performing as we think they are, and there the "key" lies. Antenna (current) height is important. And to know if the antennas actually does what we think it should do, which is far from reality in a lot...

Thank you guys ! That is really appricated. Kind regards, H>

Realising it is a rather long article it will probably take some time to read. I believe all claims have been mentioned. If not please do let me know. Questions or improvements are welcomed, debates without "foundation" will be avoid. Hoping it can contribute the debate. Happy reading :-)...

You are fast Bob ! Indeed it is...hope it is useful. Kind regards, H.

Hello, Besides the effect of the house a low placed dipole in a 90 degree angle placed horizontal will have a pattern that could still be considered "bi-directional". With that said...when placed below halve a wavelength, on the sides the "directional effort" will probarbly not reach the 1 S...

http://www.dx-antennas.com/Radiation_plots.htm Kind regards,h

tnx :oops: Thankfully, there are many who find "joy" comes from "helping" where one can. Working on a article about the sigma IV now...hoping that will be of use. Kind regards, H.

Thanks for the posting guys ! Kind regards, H>

Ehm...well...its more or less a draw. Its either mininec or nec2 for the free software that is commonly used. With each having there own situations to be "best".

Ehm.. With the knowledge provided after research. Another thing will spring to mind.... You can find out there are manufacturers out there making delta loop antennas Where they model them using for example a eznec + version using a nec2 engine. The delta loop excist out of two heavy duty inch...

ps Marconi...u were worried about tapering. Search on "mininec" and see what the conclusion is about tapering using that engine. Examples who use mininec -> mmana, antenna modeller, those are the two famous...but there are others. hope it is of use, H>

Before we get to deep into software... There are many different kinds of software. There are many different "methodes" of calculation. MOM is one of them. Its a problem solver that uses the "methode of moment" to solve a issue. There are different ways to setup that way of calculating. Well...

same deal with my BIG-MAC, i only ever spoke to one other guy using one when i had mine up at 73ft to the base and never heard of one since, R u sure :whistle: Joking m8, i know u know..hihi. Kind regards, H>

Hello, Frequently myths are based on "others" where they say : well he said so ..and he knows !! so it must be accurate. Sadly, we all are humans and we dont know all.... and we can make mistakes. So does he.. I can remember a topic on that forum about a quad, where someone explained to him...

and... probarbly some very expensive highly educated guy invented it and wants 50 percent of each one sold....besides the costs of things like CST and things like patent cant be denied. To continu...the distrubution process etc..pff...:)

19dt2120 made me laugh.... Who ever thought of it (y)(y)(y)