If you remember when MFJ first was selling its transmit loops, the short period when these were contemporaneous with the AEA Isoloop, MFJ touted that their loop

was not a flat element, was instead round tubing. Supposedly, the not crowding of the RF currents in the middle of the flat strip, away from the thin edge dimension, was an advantage of the MFJ antenna. But i don’t believe their ad; this “loss” would be, i think, minor compared to other small transmit loop losses.

-Hue Miller
Newport, Oregon, USA

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