Not unless you are concerned about shielding of H fields below about 10 kHz. Above that, if you kill the E-field, you kill the H-field as well. (Maxwell) 73, Greg, ZL3IX Henry Vredegoor wrote: > ** > > Wouldn't a steel enclosure (or any other (soft-)magnetic material) be > better? > > > 73's, > > Henry. > > 1185386449.0