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AudioShockwav. This discussion include: message #42 Shockwave: ".......My video was generated by the most advanced electromagnetic software analyzing tool money can buy and the model was built by an engineer familiar with using the program........." It's a shame that only make animations...

Shockwave: This is what shows CST-Studio planes,..... of course, ....."if you want to"... Farfield planes of Dominator?? Angle planes ?? etc, etc, etc, Does not it seem a waste of money spent just to show an animation that says nothing ?? greetings Ernesto. CX2GK

As it happens in animation is that "smaller streams" remain much longer than older, which degrade the apparent gain of the antenna, ie that these currents Pull destroy the myth of "constructive irradiation" it's just tiny time. CST also shows a number of diagrams, spreadsheets and leaves on...

see you the opposite and destructive courrents?? Or you are blinded?? This courrents are inexitent in animation of CST Gainmaster antenna. greetings. Just looking at the colors on the display doesn't tell you everything because it is near-field field intensity, and doesn't necessarily...

Shockwave, with all my respect.. :rolleyes: in my #398 message :rolleyes:....... not see this ... rather, the opposite .. greetings Ernesto.

Yes The DB, you are correct, with 1/4 wavelength can also dock a load of 25 ohms, but not with 75 ohms, with 35 ohms but. Thank you, and Greetings.

Shockwave. The Dominator antenna CST animation, look like ordinary transmission line, with conflicting and oposite currents. That does not happen in Gainmaster antenna CST animation. Greetings.

Because the inclusion of quarter wave coaxial without first antenna tuned to resonance, charge could make 1: 1 SWR with 25 ohms, not 100 ohms probably not . Then it would be good to use a VNA or a vintage noise-bridge, "which probably does not work because they are very cheap".(The DB dixit)...

This is the Sirio GainMaster Antenna . She has no opposite phase currents. Tne Vector 4000 have powerfuls opposites currents. If you follow the green color seen is the complete phase inversion and zero irradiation of the antenna, you will see that this antenna radiates it completely. This...

Hi, The DB, I explain. The GDO not require indication. The great frequency meters that exist today on precision indicate the frequency of cycles, so any resonant circuit is used, so it is wound on a finger. The antenna is coupled only when the resonance frequency thereof, and GDO is the same...

At resonance, the input impedance of a decent-quality, correctly-mounted, HF mobile antenna in his best performance has will be about 25 ohms. By definition, the resonance point is where the reactive component equals zero (X=Ø, or +Øj if you prefer). Since the requisite impedance of our feed...

Because the Dominator, J-pole and Zepp are electrically identical in function, and are similar to all other end-fed antennas in problems, pages on J-poles, Zepps, and end-fed verticals overlap. In this case, V-4000 and simmilars, are Cone or Sleeve Decoupling. The radials decouplin planes are...

(n) A VNA can indicate the approximate resonance frequency of an antenna, a GDO gives the exact frequency. In the case of the cubical quad antenna, GDO use if you want it to work properly as it is a very narrow band antenna. The VNA indicates the impedance, and a frequency around.. But there...

And I think that free discussion is very healthy for amateur radio, which is full of magical beliefs about inexitentes properties on the devices, many of them invented by petty commercial reasons. WorldwideDX wish to remain what it is, a forum of free opinion, is the best for everyone. I put...

Shockwave, if antennas operating at 50 miles, they do in Fresnel Zone, not on the horizon. This indicates that the antennas radiate to the clouds, not the horizon. It is highly unlikely a range beyond the 30 horizontal miles, so it is in a desert area. Greetings Ernesto.

"..At optimum heights, a common 1/2 wave dipole actually has about 8.5 dB gain over an isotropic radiator! Always remember that when you see antenna models over earth that tell you an antenna's gain in dBi. .." http://www.w8ji.com/end-fed_vertical.htm regards.

Shockwave: Excuse me, I have not tried to deceive anyone, on the contrary, I have shown that lack real evidence to validate their tests. I owe nothing, you are refusing to put the rest of the documentation of CST on the antenna, and how I mentioned above. Also other forum said they would do...

Well confuse an antenna impedance analyzer with the resonance frequency is common in novices. Also called "antenna tuners" to transmatch or couplers transmission lines, because they are very different things. You are excused, whether they are consumers of plastic bags, the penalty is if your...

Shockwave Those are his arguments, all you have provided is advertising how great it is the latest software from CST, an animation of it, who knows that sees radio frequency antenna is working out of phase, they look like ordinary in a transmission line, not how a dipole antenna, which gives...

In the case of the Dominator antenna, his defense has not provided more than an animation is only for fools who are impressed with their colors, and they know not really differentiate the waves and their times, besides Shockwave only shows the duration as circus magician, but eliminates the time...