Dale Parfitt wrote:
" That was a self defeating test. The idea here is that you will have a
lower noise floor in a locally noisy area with a shielded loop than a
dipole antenna. There is going to be no advantage to using a loop over
a dipole in an electrically quiet area.

A shielded loop is not better at picking up a distant signal than a
dipole but is less sensitive to local noise generators so in an area
with high local noise you would have better signal to noise than a
full size dipole antenna.

Please see:
http://www.w8ji.com/magnetic_receiving_loops.htm

Dale W4OP

Dale [W4OP] - Thanks for the very informative link.
http://www.w8ji.com/magnetic_receiving_loops.htm

Magnetic Loop Antennas Receiving
"Small Receiving Loop Antennas"
http://www.w8ji.com/magnetic_receiving_loops.htm

* Small Loop Antennas are often referred to as "Magnetic Radiators".
Folklore claims a small "Shielded" Loop Antenna behaves like a
sieve, sorting "good magnetic signals" from "bad electrical noise".
http://www.w8ji.com/magnetic_receiving_loops.htm

* Nothing is further from the truth! At relatively small distances a
small Magnetic Loop Antenna is more sensitive to Electric Fields
than a small Electric Field Probe type Antenna.
http://www.w8ji.com/magnetic_receiving_loops.htm

* Field Impedance of the Loop Antenna
http://www.w8ji.com/magnetic_receiving_loops.htm
Loop Antenna Fields - Short Dipole or Vertical Fields - Radiation

* Loop Antenna Shielding and Balance
http://www.w8ji.com/magnetic_receiving_loops.htm

* Examples of Small Loop Antennas
and Analysis of Loop Antenna Construction
http://www.w8ji.com/magnetic_receiving_loops.htm

* Typical Magnetic Loop Antenna
(found on Internet and other places)
http://www.w8ji.com/magnetic_receiving_loops.htm

* Circuit Representations of Shielded Loop Antennas
http://www.w8ji.com/magnetic_receiving_loops.htm