Simplex map: who hears who

Each month's simplex test produces a set of reception reports: for a given session, which stations each operator could hear directly, and how readable they were. This grid puts them together. Read a row as "this station, listening" and a column as "this station, transmitting." A cell shows how well the row station heard the column station.

Reach map

Lines connect stations that heard each other, colored by readability. A solid line means both directions were heard; dashed means one direction only. Stations without a reported position are not on the map, but they still appear in the grid below.

Readability grid

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