N9WOS wrote:
You can either get kit equipment for receiving or transmitting, which is
widely available on line. Or you can design and build your own.
Maybe I should clarify one of my statements before someone calls me stupid.
I mean easily modifiable equipment is widely available online.
It isn't sold for Lowfer operation.
Most heterodyne and direct conversion based short wave, receiving kits can
be modified over to the LF band from 160 to 190kc
On a 455kc heterodyne receiver, push the local oscillator down to 615 to 645
kc, and put a band pass network on the input peaked to the lowfer band, and
you are done.
Same thing can be done for SSB transmitter kits that use a fixed transmit IF
Only thing is, such low power xmitters, if designed and tuned to a
"quiet" portion of the mw band allows anyone with a standard am radio to
tune into and participate in ...
Rip apart any old transistor radio and you have the necessary parts for
the xmitter ...
VLF receivers can be a tad bit expensive ... however, most am radios
would easily be modified to VLF ... the patience of the elmer would be
the only resource in question.
Regards,
JS