In article . com,
john wrote:
hi all,

will a sync detector buy me anything on LW???? i'm mostly into beacon
listening under 540 khz.

If you've got a computer with a good sound card, look into those
spectrum analysis programs that the hams use for moon bounce work.
They use digital signal processing algorithms, like the Fast Fourier
Transform to get equivalent filter bandwidths in the 10s of Hz range.

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)