In a message dated 5/27/01 6:58:30 AM Eastern Daylight Time,
[email protected] writes:
<< I don't get any colours on the map, just a yellow diamond. Does anyone
know how to make this chart work? >>
I believe John Sexton is correct in saying that it is working. According to
the tabulated data, available from a link on the same page, the highest
affected frequency at all latitudes and longitudes is currently 1.0MHz or
less. This would render the whole map black, according to its legend. The
diamond marks the region (presently over the Pacific Ocean, west of Baja
California, Mexico) where the D-layer attenuation is greatest and the HAF is
highest, the sub-solar point.
73,
John Davis
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