The October meeting had a short notice change of topic due to the death of K8AMR's mother. (94 years, 11 month and 1 day of a FULL life).

The revised training was a revisit of a grounding presentation from a few years ago.

there are two discreet types of ground systems and reasons why a Ham might desire to provide a "station ground". These are for the most part mutually exclusive! In other words one does one job for which it is specifically designed, and one does a different job. You must design your grounding system with this in mind, or one function may inhibit or nullify the other!

One of these grounding systems is what I will generally describe as a "safety ground". This safety ground is installed to reduce the risk of electrocution or radio equipment damage by short circuited "power mains", or from lightening strikes to the antenna or "feedline" system. A safety grounding system is certainly a good Ham Radio "engineering practice", although it is usually considered as of secondary importance to an "RF ground"!

The "RF ground" is a series of radials, wires, cables, disks... or even your vehicle... that are connected to the sheild side of your coax, to assist in developing the best receive signal or "take off" angle of your radiated signal.

I have attached the presentation and several PDF articles that are available on the internet that I drew the majority of my research on this topic