I have been
experimenting
with earth systems for some years. I now use the house water
pipes
and an array of 11 copper earth rods and buried sheet in
parallel, 30
metres away at the bottom of the garden. At 8.9758 (crystal) I
pass
1.5 amps at 50 volts RMS. I have made a reception map around
Truro,
Cornwall, at 1.46Hz bandwidth using a 41 turn horizontal loop on
the
car roof rack, supplemented by using the same loop on the
ground.
Ranges vary greatly with topography and earth conditions, but
are up
to 6 Km with buried utilities assistance.
I will transmit
this
Saturday, 21st Dec, from 9.00 to 10.15 am using QRSS
3
with endless dashes. I would be most grateful if you would
report any
reception using narrow bandwidths. I must be exciting several
square
kilometres of buried utilities – surely SOMETHING must be
radiated!
I can repeat the test at any time upon request.
Harry
Woodhouse, G3MFW
