G'day everyone.
To go to the effort of building something and then running a lawn mower over it
Yehhh ------- well??
The idea is to just make one and lay it on top of the lawn to try it.
Work out that it does drop the noise level down more than the sky wave signal you are trying to listen to.
Yes you have to increase the RF gain a little to compensate but you will work it out.
If you like the results then you bury the wire just under the grass. No more than 2 inches. Easy to do with a garden spade. Don't dig a big trench. Just insert the spade and wiggle it back and forth then push the wire into the slot.
I have refined it a little more by running the wire inside small grey electrical conduit to reduce the capacitance between the wire and general earth around it. Seems to work just a tad better than having the insulated wire buried direct in the earth.
I made my loop round as I don't want directivity as I talk to people all over the place.
Also made it larger in diameter as I can then use it for 160 metres.
Anyway. I have said enough about it.
Cheers all.
Robert.