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This was the Antronmax 827 during construction. 827 hub, Imax lower section and Antron two upper sections. To tune it needed a 10pf coax stub in parallel to the coil. Now up and running, SWR 1.1 to 1 on my local frequencies and only 1.2 to 1 on frequencies 700khz either side of resonance which...

If you're wondering where the voltage maxima is on this antenna DB, you could always find someone with an 8 pil to key up on FM on the antenna then place both of your hands in various locations around the antenna. That'll find it every time.

I'm just reading your posts, i'll just observe what you and Eddie make of the AP and let you decide between the pair of you. The AP is what it is.

But just getting back to the AP and whether or not it behaves like a loop antenna. What evidence is there to suggest it doesn't act like a loop? The electrical installation and feed method is no different to a loop so why wouldn't it behave as such?

Certain antenna electrical lengths exhibit high inductance at the feed point and some exhibit high capacitance at the feed point. That is what the oscillator see's as apposed to a resistive circuit. When inductive reactance and capacitive reactance are equal at resonance they cancel each other...

20 minutes and no answer. Another clue: A magnet is a dipole, we can create electromagnets with a very similar set up to a dipole antenna. When we sprinkle iron filings at each end of the dipole or magnet on a piece of paper, the iron filings produce a pattern and show a field relationship...

I'll give you a clue, 'the hair stands up on the back of your neck while stood under power lines because...........? or... 'The guy who invented the device for stealing juice from HT power lines was tuned into......?

I'm not dazzling anyone with BS lol. I'm using straight forward questions that anyone can understand. I asked you in a series tuned radio circuit how the system completes the electrical circuit back to the radio in an open ended dipole system. It's a straight forward question but it seems you...

You asked me what inductance means, I described a coil as an example because there is no better way of putting it, a coil is indeed inductive in an ac circuit but a dead short in a dc circuit. You asked me what I meant by capacitance, capacitance is best described by the electric fields of a...

I'll put it in easy terms: A half wave dipole has current maxima, voltage minima, low impedance and has inductive properties at the feed, inductive means that it behaves like a coil on an LC circuit. The tips of the antenna are high voltage, current minima, capacitive in nature and high...

The answer lies in the loop itself. What is the very first thing a loop antenna does when current and voltage appear at resonance? The very first thing before it produces radiation?

Eddie, my wording is where people disagree. The question is - what does the oscillator see during TX? Now, on a half wave dipole we have a low impedance, high current, inductive part of the antenna at the feedpoint while at the tips we have low current, high voltage, capacitive and high...

No, i've changed my mind as to the nature of the question, it was too easy. Seeing as the AP is an electrical loop, explain why... when purely resistive circuits have the current and voltage in phase, an RF loop has the voltage and current out of phase, what causes it to be so - involving most...

There is no need to do such a thing. Just explain how in a resonant half wave dipole antenna where the current and voltage are in relation to their respective phase angle's, the relationship of those phase's to the distributed inductance and capacitance, explain where the current maxima is...

We'll start with the current maxima on a half wave dipole. Explain to the forum how and why current forms exactly where is does on the antenna, why it never migrates at resonance and what keeps it there when the power from the oscillator increases and decreases?

Rather than bring argument into the discussion DB, explain to the forum how my wording is wrong, explain where i've made critical errors in my assumptions and conclusions. Explain your view and how it differs to mine and others.

.....And always remember DB regardless of what you read..the operation of any antenna is dependent on this: The reactance of the tips of both halves of a RF signal towards each other are what actually produce radiation. It is the high resistance at the tips of the antenna to the flow of current...

So imagine DB that the feed point of the antenna is highly inductive and where the basket meets the large radiator (red meets blue on my drawing) is high capacitance. The voltage is greatest in the high capacitance node and the current is greatest at the high inductance node (feed). The...

I believe we've been so accustomed to the center feed of coax driving the driven element of a shunt fed antenna that we've forgotten that the braid or outer of the coax will radiate either the top or bottom of a half wave dipole equally well. There is no doubt what so ever that the AP is a loop...

Now, getting back to the argument what the AP is. I agree that it is some form of dipole but what kind? Now, we know that a bottom fed loop antenna presents an high impedance at the given frequency at the top of the loop where the current is minimal effectively cutting the antenna in two at that...