Antenna Read Performance Review

X Left / Right

Horizontal distance side-to-side from the antenna centre. Positive X is to the right, negative X is to the left. Measured in cm.

Y Up / Down

Vertical distance above or below the antenna. Y = 0 means same height as the antenna. Not yet measured — all current data is at Y = 0.

Z In Front

Distance straight ahead of the antenna — how far the tag is from the antenna face. Z = 0 is right at the antenna, increasing values move the tag further away.

Reading Field Coverage Shape THREE.JS · INTERACTIVE

Polygon traced from actual min/max X at each measured Z level — no approximation · Antenna at origin · Drag to rotate · Scroll to zoom

All measurements are taken at Y = 0 — the same height as the antenna. The shape shows horizontal coverage only. Vertical coverage can be found next.

Show Auto-rotate Wireframe Data points

Shape boundary = max/min X at each measured Z level — exactly as in the data · Colored dots = actual positions of max X/Z reach · Lines = path from antenna to those points · "Wireframe" toggles the outline · All data in XZ plane (Y=0)

Reading Field Coverage Shape 3D THREE.JS · INTERACTIVE

Data-driven 3D coverage shape — rectangular cross-sections from actual (X, Y, Z) measurements · Drag to rotate · Scroll to zoom

Show Auto-rotate Wireframe

Max X at each Z level is used as the radius — spun 360° to form a solid of revolution · X(red) Y(green) Z(blue) · Antenna (white dot) at origin · 12 dBm lobe is larger and shown slightly transparent so both are visible

3D Position Scatter THREE.JS · INTERACTIVE

Spheres = (Power, X, Y, Z) positions · Drag to rotate · Scroll to zoom · Hover for details · All points in XZ plane (Y=0)

Power Auto-rotate

X (red) · Y (green) · Z (blue) axes in cm · Grid on XZ plane · Color = read count over min–max range

Read Count vs Distance

Mean per (power, distance) · Shaded band = spread across positions at the same distance

Zoom

Each line = one power level · Shaded region = min–max across positions sharing the same distance · Hover a point for exact values

Power Level Comparison

Mean metric per distance, clustered by distance group

Zoom

Each cluster = one distance · Bars = power levels (blue=10, orange=12) · Tooltip shows range across positions