[Lowfer] Loop Question

[John Andrews]

Lyle,

> About 8 years ago there was a LowFER in Michigan who was using a loop
> antenna for transmitting. He claimed that because it was a "magnetic"
> antenna, the E-field it produced was very low, and he could run
considerably
> more than 1 watt under the general Part 15 provisions. Maybe we should
find
> out what calculation *he* was using :-) But I never heard him anyway...

Considering that the FCC's field meters use loop antennas and actually
measure the H field rather than the E field, he would have had an
interesting argument. Such meters are calibrated in E field units, based on
E/H=377. And yes, they can produce interesting results under near field
conditions where that relationship doesn't apply.

John A.