These Power Point presentations/slideshows were presented in local radio clubs or at ham radio conventions. They have narration, therefore, you can use them as stand-alone presentations in your club meetings.
I have many more, which yet lack narration, as they were presented with live comments in the lecture. I will, however, be adding narration to some and to new live presentations. Check back; the choices will grow.
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-- The No-Radial OCF All-band HF Flagpole Antenna
Very popular with hams on small urban lots or with a Homeowners Association
| | -- The Forgotten World of Ham Radio Slot Antennas
Presented at Pacificon, Antenna Forum, San Ramon CA November 2019
Why are there no ham slot antennas? Practical home-brew VHF and HF slots
| | -- Double Inverted Delta Skeleton Slot HF Antenna
Presented at QSO Today Virtual Expo, March 2021. Unique HF vertical -- low angle radiation, horizontally polarized for lower noise, elevated center of radiation for less ground loss, up to 6dBi directional gain (electrically steerable). Information on how to use it without a remote auto-tuner
| | -- Attic HF Antenna Jumbo Loading Coil
Large, high-efficiency, high-inductance, easy-to-build, loading coil with many
applications for attic HFantennas. 40 meter example.
| | -- Non-narrated
(You will need Power Point or Power Point viewer on your computer to view.)