examples/loop/delta-loop.nec
Ryan Malloy 38e5977bb1 Fix RP card theta range for correct 3D pattern rendering
Changed theta_start from -90 to 0 in all RP cards. The standard NEC2
convention uses theta 0-180 (zenith to nadir). Using -90 caused
cos(±90°)=0, making z=0 at pattern edges and rendering patterns flat.
2026-02-09 12:21:59 -07:00

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CM Delta Loop for 17m Band (18 MHz)
CM Equilateral triangle, horizontally polarized
CM @category: loop
CM @band: 17m
CM @author: 4nec2-web
CM @tags: loop, delta, hf, full-wave
CE
GW 1 15 0 -4.8 8 0 4.8 8 0.001
GW 2 15 0 4.8 8 0 0 16.3 0.001
GW 3 15 0 0 16.3 0 -4.8 8 0.001
GE 0
EK
EX 0 1 8 0 1 0
FR 0 1 0 0 18.1 0
RP 0 37 73 1000 0 0 5 5
EN