Two faults, both found from one field log: 70 000 decodes, 10 and 12 m plainly
open, nothing announced — and the two openings that DID fire named the wrong
direction.
evaluate() required EVERY distinct station in the window to fit inside one 90°
arc. That is the shape of a sporadic-E cloud and of nothing else. With 10 and 12
m open on F2 the reports arrive from all round the compass, the arc is 360°, and
the test can never pass — so the busier the band, the less likely an opening was
announced. Exactly backwards. It now finds the DENSEST sector instead, which
keeps the Es signature intact (a cloud still makes one direction dense) and lets
a real F2 opening be seen through the handful of neighbours who are always
there. Scattered-but-busy still reports nothing: the point was to stop demanding
global agreement, not to call every open band an opening.
Sector() averaged the two bearings arithmetically, so an arc crossing north was
labelled by its opposite: 353–61° averaged to 207° and went out as SW when it
was NE. Not a vague error — a reversed one, given to an operator who may turn a
beam on it. The detector has handled the 0/360 wrap since it was written; only
this label had not.
rouggy
8aa0e39aff