Re: LF: RE: Re. 73KHz T/A

["Mike Dennison" <mike.dennison@rsgb.org.uk>]

> Could this path be enhanced by the  Earth  / Ionosphere waveguide
> propagation mode, prevalent at lower frequencies.   I know it is rather too high
> frequency to be normally considered for this mode, but with a D layer 'height'
> of around 75km (is that right ?)  the waveguide guide width is something like 8
> wavelengths so something may be feasible.
> Andy  G4JNT
I had always understood that you needed gigantic powers to get into this 
mode, but once there the path losses were very small.
Congratulations to Laurie and John. Are there any pictures?


Mike, G3XDV (IO91VT)
http://www.lf.thersgb.net