Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
108 mi (173 km)
Bearing
120.4°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
170.7
dB
Gaseous (O₂+H₂O)
10.6
dB
Diffraction loss
136.7
dB
TOTAL PATH LOSS
317.9
dB
Gas rate: 0.0610 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.0 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)
-317.9
dB
RX Ant Gain
30.0
dBi
RX Power
-239.9
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-99.9
dB
Path Weather Avg
Temperature
80.3°F
26.8°C
Dewpoint
43.7°F
6.5°C
T/Td Gap
36.5°F
Abs Humidity
7.0 g/m³
Pressure
974.1 mb
PWAT
13.1 mm
BL Depth
2259.3 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Pressure
88
Humidity
88
PWAT
80
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 | 33.9, -98.2 | 27.4°C | 4.9°C | 983.1 mb | 2342.2 m | 11.8 mm | ||
| 13% | 33.8, -98.0 | 27.1°C | 6.2°C | 985.7 mb | 2289.0 m | 12.2 mm | ||
| 25% | 33.7, -97.8 | 27.1°C | 4.9°C | 984.4 mb | 2303.8 m | 12.1 mm | ||
| 38% | 33.6, -97.6 | 24.8°C | 8.2°C | 974.1 mb | 2202.8 m | 13.8 mm | ||
| Midpoint | 33.5, -97.4 | 25.7°C | 8.2°C | 983.6 mb | 2034.5 m | 12.4 mm | ||
| 63% | 33.4, -97.2 | 26.4°C | 8.5°C | 989.9 mb | 2168.3 m | 13.6 mm | ||
| 75% | 33.3, -97.0 | 26.8°C | 7.4°C | 992.3 mb | 2228.2 m | 13.2 mm | ||
| 88% | 33.2, -96.8 | 27.8°C | 6.5°C | 995.5 mb | 2387.5 m | 15.4 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:
79
at 21:00 UTC
Worst:
66
at 12:00 UTC