It is very unfortunate that the majority of the statements made regarding to the QRPGuys No Tune End Fed Half Wave Antenna are either completely false, contradictory or often based on the assumptions of others.
As mentioned by Andy@MM0FMF and Brian@G4ADD we - many hundreds/thousands of poor but highly satisfied and successful users of broadband impedance torodial transformers together with true EFHWs do not understand the 3 dB thesis made by Ron@VK3AFW as a killer reason to stop further use.
To be fair, from a technical point of view the QRPGuys No Tune End Fed Half Wave Antenna is nothing more and nothing less than a copy of the many other commercially offered and countless homemade versions - for years!
It’s understandable that newcomers to antennas do not know the full story, but a bit of restraint in grabbing the keys would be appropriate. Thanks.