Topband: Skywave for LF

[Robert Kavanagh <73rjkosz@sympatico.ca>]

> 630 meter propagation will be almost entirely groundwave as ionospheric
> conditions generally do not support skywave (a primary reason for the
> use of LF and low MF for NDB).
Not true.

As G5VU has already noted, NDBs are routinely propagated via skywave, 
e.g. IPA in Easter Island has been frequently heard here (8700 km) after 
dark.

Bob
VE3OSZ
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UR RST IS ... ... ..9 QSB QSB - hw? BK