Great article from the year 1898~. This is so crazy that these wideband antennas were known about even back then! Back in the days of sparkgap transmitters and the birth of radio.
Funny part is this 110+ year old document is actually educational still. Like it says the tech is not well documented thus it gets rediscovered over and over again even though it's as old as the hills
Good find. As can be seen in the article, each of those concept antennas became the foundation of many UHF antennas used much later in time, once they were able to actually work in those frequency rages reliably.
I once mentioned over at another forum about using an upside down aluminum Christmas tree for a Part 15 MW setup. I actually tried this and it worked quite well for a flea signal. That article shows the exact same concept with the Carter's conical monopole.
Some lurker/self proclaimed expert/sour head told me and others that it would not work, stick to the tried and true blah blah. Well perhaps that lurker will see this and perhaps recognize there were much smarter folk than him 110 years ago!!!
Peace!!
K-ROCKS RadioOne
ZeroPointRadio
AM Stereo 1670
FM Stereo 92.1
Great article from the year 1898~. This is so crazy that these wideband antennas were known about even back then! Back in the days of sparkgap transmitters and the birth of radio.
Funny part is this 110+ year old document is actually educational still. Like it says the tech is not well documented thus it gets rediscovered over and over again even though it's as old as the hills
I wonder if they realized how pioneering those shapes were (look at a solid state antenna under a microscope)
Just found out how well this antenna works for UHF scanner monitoring. Guess that should have been obvious, but hey I found another use for it.
Also been looking into discone antennas. They sound promising but anything on the lower VHF bands starts getting ridiculously big in size. For UHF it may be interesting to whip one together and give a test.
Also been looking into discone antennas. They sound promising but anything on the lower VHF bands starts getting ridiculously big in size. For UHF it may be interesting to whip one together and give a test.
Well who ever said that loading coils are only for LW/MW/SW?
Peace!
K-ROCKS RadioOne
ZeroPointRadio
AM Stereo 1670
FM Stereo 92.1
I built the most ridiculous looking antenna that I have ever constructed. 6 foot bowtie antenna, covers down to 80MHz. I am using this one for FM reception and it outperforms a dipole in every possible way, including the ability to use it as a scanner radio antenna up into the medium UHF bands! I threw this thing together in around 10 minutes and it picks up better than some professional antennas I have tried for FM broadcast and VHF high band reception.
Too bad it looks like a total POS, because you'd never know it was by using it if you were blind lol.
It can get expensive, but plexiglass works good at invisibility.
Discone's are really broadband and can even be used for TX when the height > 1/4 wavelength (or is it 1/2 wavelength? Must check Antenna Anthology book...)