Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
22 mi (35 km)
Bearing
265.5°
Terrain
BLOCKED
Propagation
71/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
156.8
dB
Gaseous (O₂+H₂O)
2.2
dB
Diffraction loss
71.7
dB
TOTAL PATH LOSS
230.8
dB
Gas rate: 0.0626 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.5 g/m³
Power Budget
TX Power
20.0
dBm
(100.0 mW)
TX Ant Gain
30.0
dBi
Feed Loss (×2)
-2.0
dB
EIRP
48.0
dBm
Path Loss (w/FF)
-230.8
dB
RX Ant Gain
30.0
dBi
RX Power
-152.8
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-12.8
dB
Path Weather Avg
Temperature
79.9°F
26.6°C
Dewpoint
45.6°F
7.6°C
T/Td Gap
34.3°F
Abs Humidity
7.5 g/m³
Pressure
994.1 mb
PWAT
14.8 mm
BL Depth
2263.7 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
85
PWAT
80
Pressure
70
Season
55
Refractivity
50
Sky Cover
50
Wind
50
Time of Day
18
Atmospheric Profile
HRRR (3 km) Valid 2026-05-03 20:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 33.1, -96.2 | 26.3°C | 7.7°C | 996.2 mb | 2198.8 m | 13.8 mm | ||
| 13% | 33.1, -96.3 | 26.3°C | 7.7°C | 996.2 mb | 2198.8 m | 13.8 mm | ||
| 25% | 33.1, -96.3 | 25.7°C | 9.1°C | 996.9 mb | 2206.6 m | 14.9 mm | ||
| 38% | 33.1, -96.4 | 25.7°C | 9.1°C | 996.9 mb | 2206.6 m | 14.9 mm | ||
| Midpoint | 33.1, -96.4 | 25.7°C | 9.1°C | 996.9 mb | 2206.6 m | 14.9 mm | ||
| 63% | 33.1, -96.5 | 26.8°C | 8.8°C | 997.3 mb | 2300.2 m | 16.3 mm | ||
| 75% | 33.1, -96.5 | 26.8°C | 8.8°C | 997.3 mb | 2300.2 m | 16.3 mm | ||
| 88% | 33.1, -96.6 | 28.2°C | 3.9°C | 994.1 mb | 2377.9 m | 13.9 mm | ||
| Destination | 33.1, -96.6 | 28.2°C | 3.9°C | 994.1 mb | 2377.9 m | 13.9 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
78
at 22:00 UTC
Worst:
62
at 12:00 UTC