gravity wrote:
i've been considering an antenna for the audio frequency range plus 1 to 20
hz. basically a big coil would work.

i've thought about using a steel drum, but i don't have room for that in my
new QTH. mu metal rods would be very expensive, even ferrite would be
expensive for an 100,000 turn antenna.

not sure what to use. maybe steel core.

Gravity



You can always use an active antenna.

Here's one the claims performance from
30 Hz to 50 MHz.

www.ets-lindgren.com/manuals/3301B.pdf

Chuck