I purchased this loop receiving antenna off of AliExpress with the hopes of using its directional properties to minimize local QRM and to maximize signal to noise ratio.
In this video, I compare the receiving capabilities of the MLA-30+ antenna to my full length 40/80m inverted vee dipole.
Antenna was purchased here: a.aliexpress.c...
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April 2024 - Is this a “mag loop” antenna?
In response to a couple of viewers who stated, “This is not a mag loop antenna”…
I did some research on this… it would seem you are correct, but… Hahaha! As always, with so many things, “it depends” comes into play.
On page 9.13 of the 2023 (25th edition) ARRL Antenna Book, I found a little box with a statement about the definition of a Mag Loop antenna. It references the Mar/Apr 2020 QEX technical note which defines the boundary as being where the circumference of the loop is less than .05 wavelength. This is where the electric to magnetic field ratio tips in favour of the magnetic field.
In this case, a 1 meter diameter loop is considered a mag loop at frequencies below 4.8 MHz… so on 80 meters, this would be considered a “mag loop”. At 40 meters and above, it clearly does not meet the definition.
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VE6WGM (VE6WO)
22 сен 2024