LF: 73KHz notes

["g3ldo" <g3ldo@ukonline.co.uk>]

When I put up the antenna and switched on the 73kHz station at around 1730
local I later heard/saw Jim BMU but his signal was down. The band seemed
quiet and as I tuned across the band there was a change in the pitch of the
noise - the sort of thing you get when the receiver is connected to a high Q
loop. It turned out that the receiver had been left connected to the HF
minibeam, which is only 6m away from the end of the LF antenna. A good
example of antenna coupling.
When the LF antenna is connected directly to the receiver the QRN masks the
change in noise pitch with tuning.
LF transmitter/loading coil/antenna performing well on the last day with 4.3
amps antenna current.
Jim is clearly audible in beacon mode - time 2030z

Regards,
Peter, G3LDO