[Lowfer] VLF active antenna

[JD]

E-probes get discussed pretty regularly on the list.  I might point out that 
there is a currently a series of tests running in The LOWDOWN on 
commercially available compact LF/VLF antennas.  The December article talks 
about the wide range of IM distortion figures among different units...and 
the discrepancy between published specs and test results can be pretty 
shocking...but it might give folks an idea of what sort of performance they 
ought to be shooting for.  The article is available as a free sample for 
download on the lwca.org home page.