Technical Information for aficionados of the 136kHz amateur radio band

myLFstn A description and photos of the LF station G3LDO.

The items listed below  are technical discussions edited from e-mails from the LF e-mail reflector. These appear under headings as follows: 

A_antenna  A discussion and description of active LF electrostatic receiving antennas.  

Ferrite , selecting a suitable replacement for the 3C85 cores now that they have become obsolete. 

Coils  Loading coils for QRO use and how to reduce losses.

Radiation; Radiation from a loading coil and its possible contribution to LF antenna performance; a discussion on trying to measure it.

Receiving LF signals; How to get optimum performance from your LF receiving system. 

Receivers; A general discussion on the best (and the worst) receivers for LF 

An efficient LF receiving loop; How to construct a big loop for 136kHz reception. Additional receiver loop design by Jim Moritz, M0BMU.