Topband: Spurious Signal on 1810.8

Tue Oct 2 07:30:33 EDT 2012

For some while I have been hearing a strong spurious signal on about 1810.8 kHz. 

I thought it was a local SMPS or similar until I started trying to find it.

It is not local to me it - I can hear it on several different antenna systems, and also 

from my remote station 15 km away. It beams south west and is inaudible during 

the day. This morning it faded out about 30 minutes before my sunrise, so I presume 

it is somewhere on the US east coast or in the Carribean.

Any thoughts?

73 Roger
VE3ZI