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I want to add this post to Martin's MLA-30 thread ( /g/loopantennas/topic/mla_30/34311042 ) , but it is locked. Hence, my starting this new topic. I know the MLA-30+ has been done to

Hi Chavdar, Thanks for the above clarification.? I built my LZ1AQ prototypes with input LP filters after reading your remarks " This (filter) does not impair the amp performance. ?Without ?this

About: Does the Norton measurement setup can be used to measure correctly the frequency response of the antenna factor of an active small loop wideband (low Zinput) amplifier? To Mark AG5RT and Dan

Chavdar, No doubt it follows Faraday's law about induced current. Your effort has been design of? active small loop antenna with a flat frequency response. We have to observe a number of conditions

All, Regarding Dave's question please see the created album titled Short Circuit Current of SMA. Raphael

The following photos have been uploaded to the Short Circuit Current for SMA ( /g/loopantennas/album?id=298140 ) photo album of the [email protected] group. *

Raphael Wasserman <wassermanr46@...> added the photo album Short Circuit Current for SMA ( /g/loopantennas/album?id=298140 ) : Based on Chavdar Levkov's paper "Very Weak

Dave, Probably one of the best VNAs for the money?is the SDR-Kits?VNWA 3SE Automatic 2 Port VNA - N-Connector Version. I own 2 of them and use one almost every day. They have great support and there

Since I and many others are totally unaware of the origins or derivation of that "formula", I believe the best path forward is to start over. Is anyone aware of the origin or derivation of it?

To Raphael, 1. The flat frequency response comes from two conditions ?- e..m.f . rises linearly with frequency (Faraday; this is not mathematiucal trick) ?and inductive Xl raises in the same manner.

Raphael, I don't know.....I'm not smart enough to find "holes" in the numerical electromagnetics code.? I do know that there is no equation for any particular antenna configuration in the

Dan, I think it is a doubtful conclusion, let's for sake of argument forget about any software simulations apps. The loop in short mode current is closed with about 3 ohms load resistor and the

Raphael Wasserman <wassermanr46@...> added the photo album Short Current Mode of Small Loop Antenna ( /g/loopantennas/album?id=298122 ) : Chavdar Levkov's published

I don't think this supposition is correct.? In simulation of a short-circuited loop with ZERO ohmic resistance, we see that flat frequency response.? In my simple country engineer way of looking at

Done.? See folder HERE ( /g/loopantennas/files/One-meter%20circular%20loop%20excited%20by%20plane-wave ).

Dave, This is a known difference between a magnetic antenna and electric antenna. Raphael

Hi Chavdar, What bothers me in your published article https://www.lz1aq.signacor.com/docs/fa-eng/Weak_ ( https://www.lz.signacor.com/docs/fa-eng/Weak ) signals-mag_loop_engl.htm where using known

And yet another interesting result: Look at below and above resonance. With a dipole of 1/4-wavelength monopole when its short (physically) it's capacitove. When long, it's inductive. Just the

If anyone is interested I have a few unpopulated LZ1AQ boards, that take all leaded parts and 2N2222 transistors. If interested please contact me off list at everettsharp (at) aol com. ?Everett N4CY

All, The mentioned here Chavdar's webpage represents correct equivalent model of small loop antenna that should be used in order to come up with a dummy aerial for loop antenna. Raphael