[600MRG] Radio engineer Grady Motes and the HEBA efficient small size medium wave antenna
Dave Riley
dave.riley3 at verizon.net
Mon Mar 20 18:27:53 EDT 2023
Think of it as a Tesla hi-z loop..
See the loop?? The big fat center conductor is at very low 'R'
On 3/20/2023 6:11 PM, D.J.J. Ring, Jr. wrote:
> This claim is amazing:
>
> PERFORMANCE SUMMARY
> The HEBA 103 meets the United States FCC requirements for
> efficiency and is equivalent to a ¼-wave series-fed monopole.
>
> How can that be if it doesn't work well?
>
> 73
> DR
>
> On Mon, Mar 20, 2023 at 4:43 PM Ed Cole <kl7uw at acsalaska.net> wrote:
>
> Is this the antenna (type)?
> https://www.thebdr.net/wp-content/uploads/2020/06/high-efficiency-broadband-plain-english.pdf
>
> Would require nearly an acre base at 630m.
>
> 73, Ed - KL7UW
>
> On 3/20/2023 11:11 AM, Dave Riley via 600MRG wrote:
> > The KDKA wire cage was the standby TX antenna @ KDKA, 50s 60s 70s
> >
> > The transmission line was 4 wires in a square fed alternately
> and cross
> > connected along the way from the TU to the vertical section of a
> 6 wire
> > cage all spaced and insulated with the top and bottom of this 50'
> > vertical run each connected to 6 wire horizontal elements.
> > At least that is what I remember..
> >
> > Draw a capital H on it's side fed smack in the middle of the 'H'..
> > Imagine 2 wire feed, then build a 3' or so circular cage on the
> top,
> > bottom, and vertical feed.. Anyway it was a DX maker...
> >
> > 73s
> >
> >
> > On 3/20/2023 2:28 PM, D.J.J. Ring, Jr. wrote:
> >> Wanting to know more about the KDKA cages, I emailed Tom W3WGM,
> and he
> >> replied:
> >>
> >> Sorry Dave, but it was not me. I was CE at KDKA in the late
> 70's but
> >> never did any papers on antennas.
> >> Tom, W3WGM
> >>
> >> Maybe he just talked about it to you?
> >>
> >> 73
> >>
> >> David N1EA
> >>
> >> On Sat, Feb 18, 2023, 17:21 Dave Riley via 600MRG
> >> <600mrg at mailman.qth.net> wrote:
> >>
> >> I see a loop antenna here, albeit an 'E' loop sitting on
> it's own
> >> insulated above ground platform..
> >>
> >> You can also see it as a top loaded vertical..
> >>
> >> To me it makes the most sense to feed just like that and
> >> above/away from lossey ground..
> >>
> >> The first thing is that you pick up 3 db just for not
> feeding half
> >> the power in to ground radials..
> >>
> >> Two paws up on this one.. Plus the big fat vertical part is
> >> relatively ultra low 'R' where most of the current is..
> >>
> >> The effective height is probably a pretty good number too..
> >>
> >> It would be the best mobile antenna to ever crown the WA1HLR
> >> cadaverlac, yessir a mighty pretty 160m mobile antler fer
> sure..
> >>
> >> I'll see your king and raise you one solid 6" copper strap
> >> vertical 'I' loop and get two nulls for free to protect those
> >> other AM stations and therefore allow you to run MORE power..
> >>
> >> Yanks come up with the darndest things!!
> >>
> >> Next time, see the old wire cage vertical @ early KDKA and
> what it
> >> did on 1020 kc...
> >> Tom Monahan W3WGM has the whole story on that one.. WOWZA
> >>
> >> 73s de Dave @ 1a/W1FRV Loud and Clean on the East Coast..
> >>
> >>
> >> On 2/18/2023 2:34 PM, Dick Bingham wrote:
> >>> Hi
> >>>
> >>> Possibly interesting. I started watching the video and
> quit after
> >>> maybe 5-minutes.
> >>> Talking-heads BS !!
> >>>
> >>> I located this Patent Office info for the HEBA antenna ===>
> >>> *https://uspto.report/patent/grant/10,461,430*
> >>>
> >>> that may have more useful info.
> >>>
> >>> 73 Dick/w7wkr at CN97uj
> >>>
> >>> On Sat, Feb 18, 2023 at 1:40 AM D.J.J. Ring, Jr.
> <n1ea at arrl.net>
> >>> wrote:
> >>>
> >>> Radio engineer Grady Motes and the HEBA efficient
> small size
> >>> medium wave antenna.
> >>>
> >>> https://youtu.be/TY1TArbqEfI
> >>>
> >>>
> >>> Pleasing Audio Processing with Mike Erickson - TWiRT
> Ep. 444
> >>>
> >>>
> >>> Description
> >>>
> >>> The HEBA - AM's Real Estate Relief - with Grady Moates -
> >>> TWiRT Ep. 460
> >>>
> >>> TWiRT - This Week in Radio Tech
> >>>
> >>>
> >>> Grady Moates is a “hands-on” broadcast engineer. Known
> widely
> >>> for his audio processing expertise, Grady’s attention has
> >>> more recently been on proving the performance of a novel
> >>> antenna design. The High Efficiency Broadband Antenna
> (HEBA)
> >>> - after years of additional research and real-world
> testing
> >>> and proving - is now FCC approved. Grady explains how
> a HEBA
> >>> help AM stations, especially those with real-estate
> >>> opportunities.
> >>>
> >>> Show Notes:
> >>>
> >>> HEBA (High Efficiency Broadband Antenna) Specs
> >>> http://worldwideantennasystems.com/sp...
> >>>
> >>> HEBA antenna under construction
> >>> http://worldwideantennasystems.com/news/
> >>>
> >>> Photos, diagram, and rendered video of HEBA antenna
> >>> https://photos.app.goo.gl/9qvPVBHUmXr...
> >>> ...more
> >>>
> >>> TWiRT - This Week in Radio Tech
> >>> 2.33K subscribers
> >>> Videos
> >>> About
> >>>
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