Horizontal long wire MW aerial.

[Crackle]

I have tested the resistance of the mains earth in my room to the central heating pipe, (mains socket and CH pipe) and taking into account the 0.3 ohms meter lead resistance, it is 0.4 ohms.
I have also checked the voltage between the 2 earth points, (again mains socket and CH pipe) which is anything from 1mV AC to 2.5mV AC, on DC it measures 0.1mV.

In the past I have used the CH pipe as an RF earth and it seems cleaner than the mains earth, but as it is connected all around the house well above ground it also works very well as an aerial, so how efficient can it be as an RF earth.

How about if I connect a second substantial wire (16mm) from the new earth rod to the central heating pipe in my room, (that is a lot more convenient than having all the floor boards up all over the house to feed another earth wire back to the mains consumer unit) and another wire from the new earth rod to my radios.
Any fault currents should be able to be handled by either wire.

I would hope that by bonding the mains earth (CH pipe) to the new earth rod, that any interference on the mains earth would have better path to ground.

Does this sound safe and would the new earth help the radio signals with the aerial proposed in post #22 ?

Thanks
Mike