Satellite Pointing Calculator (no negative inputs — pick N/S + E/W)
Site & Satellite
Antenna Latitude
N
S
Antenna Longitude
E
W
Satellite Position (Longitude)
E
W
Outputs use common GEO pointing approximations (DishPointer-style): Earth radius / GEO radius ≈ 0.1512.
Calculate
Pol Target Settings (from your sheet)
Pol Offset
Pol Scale
Voltage → POL (optional)
Center pol reading = offset + scale.
Tx Pol 2 target = center + polang (if < 30 add 180).
Tx Pol 4 target = center + polang + 90.
Voltage formula: (V×4095/5 − 1136) × 135 × 4 / 4096, clamped 0..255.
LNB Visualization
Show target
Tx Pol 2
Tx Pol 4
0°
Center:
—
Target:
—
Rotate:
—
Rotation shown is
relative to Center
.
Positive = CW (as drawn).
Results
Press Calculate…