There are often complaints about interference,  both local
electrical/electronic, and distant signals which impinge upon the desired
signal.

Loops abound  but seem not to be the "final solution" for DX !

I have for many years succesfully used a simple 2element  interferometer on
the (almost)LF bands to phase out interfering signals. I am certain if used
on  136KHz. this will assist in all cases of local QRN(M)  but not  certain
whether it will help with distant QRM. The main problem for long distance
QRM  (Like Loran spurs) is adquate spacing for the two antenna for a
satisfactory null.  It would be possible to use a radio link  for remote
antennae.

The other possibility is a big Adcock antenna and a  goniometer system for
anyone with the land??

Anyone have any thoughts??


Robin G3LBA