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eddie,
i meant your new top-one model, when you added the mast the the high angle lobe dominated which is what w8ji talks about, mayne i was half asleep and misread it,

cebik's picture show answers what a worst and best case scenario would be both grounded and ungrounded,
neither of them state that there will always be an issue, both of them say you should use a choke,

i doubt that avanti's plot of the astroplane is freespace,
the way i read the patent they did actual measurements and determined that using a mast shorter than about 9ft below the hoop caused takeoff angle to rise significantly,
they also stated that reducing the flare of the radials lowers radiation angle below the horizon,
it is unclear from the patent exactly why the mast causes that effect,
we have a difference of opinion on what the astroplane could be,

there is not more to my ideas about eznec than i let on lol,
i believe if the correct inputs are given then you should get a pretty accurate result within the limitations of each program,
why do i think that? because the experts say so and tens of thousands of people use models to good effect,
cebik gives examples of where mininec or nec could be a better choice in his opinion,

i don't believe people take as much notice of what i post as you imply nor can i imagine why something i posted about a certain type of antenna been difficult to model and get accurate results as told to me by cebik would stop anybody discussing models, if anything it would generate discussion from people who have an interest,
i have posted links to w8ji and cebik that have generated discussion,

several people have posted models of the sigma style antennas we even have shockwaves cst plot from sirio, possibly the only models on the net of that style antenna,
wwrf is certainly the site with the most discussion on the sigma style antennas
the stick and groundplane models are everywhere you look,

henry has it spot on in his summation of what i have said,

you would have to ask the guys that model antennas why they don't share your enthusiasm for posting and discussing eznec models.

<blockquote data-quote="bob85" data-source="post: 281827" data-attributes="member: 18">eddie,&nbsp;i meant your new top-one model, when you added the mast the the high&nbsp; angle lobe dominated which is what w8ji talks about, mayne i was half asleep and misread it,&nbsp;cebik&#039;s picture show answers what a worst&nbsp; and best case scenario would be both grounded and ungrounded,&nbsp;neither of them state that there will always be an issue, both of them say you should use a choke,&nbsp;&nbsp;i doubt that avanti&#039;s plot of the astroplane is freespace,&nbsp;the way i read the patent they did actual measurements and determined&nbsp; that using a mast shorter than about 9ft below the hoop caused takeoff&nbsp; angle to rise significantly,&nbsp;they also stated that reducing the flare of the radials lowers radiation angle below the horizon, &nbsp;it is unclear from the patent exactly why the mast causes that effect,&nbsp;we have a difference of opinion on what the astroplane could be,&nbsp;there is not more to my ideas about eznec than i let on lol, &nbsp;i believe if the correct inputs are given then you should get a pretty&nbsp;&nbsp; accurate result within the limitations of each program, why do i think that? because the experts say so and tens of thousands of people use models to good effect,cebik gives&nbsp; examples of where mininec or nec could be a better choice in his opinion,&nbsp;i don&#039;t believe people take as much notice of what i post as you imply nor can i imagine why something i posted about a certain type of antenna been difficult to model and get accurate results as told to me by cebik would stop anybody discussing models,&nbsp; if anything it would generate discussion from people who have an interest, i have posted links to w8ji and cebik that have generated discussion,several people have posted models of the sigma style antennas we even have shockwaves cst plot from sirio,&nbsp; possibly the only models on the net of that style antenna, wwrf is certainly the site with the most discussion on the sigma style antennasthe stick and groundplane models are everywhere you look,&nbsp; henry has it spot on in his summation of what i have said,you would have to ask the guys that model antennas why they don&#039;t share your enthusiasm for posting and discussing eznec models.</blockquote>

[QUOTE="bob85, post: 281827, member: 18"] eddie, i meant your new top-one model, when you added the mast the the high angle lobe dominated which is what w8ji talks about, mayne i was half asleep and misread it, cebik's picture show answers what a worst and best case scenario would be both grounded and ungrounded, neither of them state that there will always be an issue, both of them say you should use a choke, i doubt that avanti's plot of the astroplane is freespace, the way i read the patent they did actual measurements and determined that using a mast shorter than about 9ft below the hoop caused takeoff angle to rise significantly, they also stated that reducing the flare of the radials lowers radiation angle below the horizon, it is unclear from the patent exactly why the mast causes that effect, we have a difference of opinion on what the astroplane could be, there is not more to my ideas about eznec than i let on lol, i believe if the correct inputs are given then you should get a pretty accurate result within the limitations of each program, why do i think that? because the experts say so and tens of thousands of people use models to good effect, cebik gives examples of where mininec or nec could be a better choice in his opinion, i don't believe people take as much notice of what i post as you imply nor can i imagine why something i posted about a certain type of antenna been difficult to model and get accurate results as told to me by cebik would stop anybody discussing models, if anything it would generate discussion from people who have an interest, i have posted links to w8ji and cebik that have generated discussion, several people have posted models of the sigma style antennas we even have shockwaves cst plot from sirio, possibly the only models on the net of that style antenna, wwrf is certainly the site with the most discussion on the sigma style antennas the stick and groundplane models are everywhere you look, henry has it spot on in his summation of what i have said, you would have to ask the guys that model antennas why they don't share your enthusiasm for posting and discussing eznec models. [/QUOTE]

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