Brad, taking a look at the pics it looks like your on the right track...way better than nothing...which is what you had previously. Sorry about delayed response..have just had eye surgery recently and am doing very minimal computer time so not on the board/anything much..thanks to Amsy for the heads up email that there was a query. If you drop me a direct email I will send you a copy of the presentation.
Its very important to be aware of the different electrical regulations between us here in the US and the local ones there...one remains the same in both though...if/when in doubt have an electrician check it out
Best/safest ground that is independent of the house electrical system (no electrician ) is a ground wire straight from the antenna mast to a ground rod buried in the ground at least 3 feet. Then your coax runs down the side of the house to a ground block which is also connected to that same ground rod. From there the coax runs to your receiver location.
The bottom line is to give any electricity (static or otherwise) the most direct and efficient path to ground because that's where it wants to go..we want it to go there too!! ..without going through your receiver
One last thing...if you know there are thunderstorms in your area disconnect your receiver from both the antenna and power....nothing will save your electronics if you take either a direct strike or even something close....the ground you have/are installing will however take care of the daily static electricity that collects on the surfaces of both your antenna and coax...and that's whats been getting you in the past I'm pretty sure.
Best of Luck...don't hesitate to ask any questions you wish.
MS