LF: Re: CFH on 136.9559 kHz ?

["John Andrews" <w1tag@w1tag.com>]

Markus,

Curiosity took over, and I attempted a mid-afternoon measurement of the CFH
carrier's field strength. I get 235 uV/M at 697 kM. A quick check with a
great circle plot shows about 70% of that path to be over sea water. Ground
conductivity for the rest of the path is awful (blame the last ice age), no
better than 1/2500 of sea water.

If anyone can factor in the earth's curvature and calculate an unattenuated
field from this, be my guest.

John Andrews