> > The RSGB are still pursuing my 9kHz NOV application with the
> > authorities
There is no requirement for any for of authorization below 9 kHz in Canada,
this is why the work I did last winter was at 8.998 kHz.
Same situation in Belgium : via our society (UBA) the question was raised
with the regulation authority (BIPT / IBPT) and their answer was that their
regulation starts at 9kHz, so below that frequency you do not need any
licence.
One should however take into account that all harmonics of a 8.9xxkHz
signal are well above 9kHz so only a clean sinusoidal signal should be used
especially if you do not use a tuned (narrowband) antenna.
Those who are interested in this matter should have a look here :
http://www.qsl.net/vk2zto/UEVLF/uevlf_comms.htm
the 'downunder' distance record seems to be 1.6km
73, Rik ON7YD
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