What Use Is An F-call?

What use is an F-call? Every day you learn something new. I realise that's an obvious comment, but I am regularly surprised at the range of experience and education that Amateur Radio brings to my life. In the weekly F-troop a topic of conversation raised by Graham VK6FSGH was station grounding. It's a topic that gets a range of coverage on the Internet. Often grounding is ignored, or only just hinted at by documentation. Antenna designs online regularly offer instruction on how long a piece of wire should be and how high it should be in the air, but not often a discussion on what the ground should look like. Graham pointed us at a document written and published by Motorola, titled "Standards and Guidelines for Communication Sites". It's a 518 page tome on the topic of setting up a communication site. I'm still reading, but so far it covers all you want to know about anything. Chapter 4 was what caught our initial attention, it's 100 pages on the topic of external grounding. That's not the only