Polarscope
POLARSCOPE
Antenna Radiation Pattern Visualizer
FAR-FIELD 3D · RF ENGINEERING TOOL
by Jack Mitchell — M9PXZ
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A desktop antenna radiation pattern simulator powered by a real NEC-2 electromagnetic solver. Model antennas, simulate impedance, plot 3D far-field radiation patterns, and sweep SWR across frequency, all running locally with no cloud and no data leaving your device.

Free to use, fork, and modify. See LICENSE.txt for terms.

v1.6.0 · Powered By Real Electromagnetics · Built with Electron & Plotly.js

© 2026 Jack Mitchell (M9PXZ) · Free to use and distribute. Resale and paywalling strictly prohibited.

Antenna Radiation Pattern Visualizer
by Jack Mitchell — M9PXZ
Far-Field 3D · RF Engineering Tool · Powered By NEC
f = λ=2.05m 2m
Window 1 Dipole
EDIT MODE
Azimuth°
Elevation°
Length
Units
ELEMENTS — type value + Enter or live as you type
U(θ,φ) — Dipole · Total Gain
—
Y
X
Z
-Y
-X
-Z
ISO
Drag: orbit · CTRL+drag: pan · Scroll/ALT: zoom
Gain (dBi)
— — — — — —
dBi