in traditional telecom offices, the ground system was "star", i.e. all grounds ran separately to a single point ground, and the ground field was installed and tested to meet a required standard with a ground resistance test unit by Megger (current price $843). Never did the test myself, but saw it performed several times.
However, if it was considered a "radio site", then it had a ground halo ring around the ceiling of the radio area, with multiple grounds fields outside.
If I recall, the instructions for grounding were probably about 200 pages long of how to perform all the required work.
I don't plan to go to the same extent as that (and I can't afford it either).
My feeling is that you need to be consistent in the method you apply, and test the result one change at a time (as noted earlier).
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Dick KE0ME
Pam
Gandalf the White (miniature Schnauzer)
2014 Silverado 2500
currently don't own an RV
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