Antennas — Tool
Frequency beamwidth reader.
Extract numerical beamwidth data from a manufacturer plot: load the image, calibrate its axes, trace the curves and export the results.
Drop the manufacturer's plot here
…or paste a screenshot (Ctrl+V / Cmd+V), or use the file picker on the right.
Beamwidth on the Y axis, frequency on the X axis.
Tip: a loupe follows your cursor over the plot for precise clicks. Points can be undone one at a time at any stage. Everything runs in your browser — the image never leaves your machine.