Re: Is the mains 'earth' good enough?
Interesting article Hugh.
If you do set your own local TT system (like I have), you must make regular checks of the Earth impedance (Ze) to ensure it meets requirements.
Unless you're operating a transmitting station, and capable and competant to modify your earthing system, I'd leave well alone.
In answer to the original question, the mains earth must be connected to chassis for safety, and will most likely suffice as an RF earth (for a receiver).
Rob.
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