Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
81 mi (131 km)
Bearing
93.0°
Terrain
BLOCKED
Propagation
79/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
154.8
dB
Gaseous (O₂+H₂O)
0.9
dB
Diffraction loss
95.9
dB
TOTAL PATH LOSS
251.6
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 13.3 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)
-251.6
dB
RX Ant Gain
30.0
dBi
RX Power
-173.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-33.6
dB
Path Weather Avg
Temperature
73.7°F
23.2°C
Dewpoint
60.8°F
16.0°C
T/Td Gap
12.9°F
Abs Humidity
13.3 g/m³
Pressure
975.1 mb
PWAT
25.8 mm
BL Depth
285.8 m
Refrac Gradient
-118.6 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
90
PWAT
90
Pressure
88
T-Td Depression
85
Refractivity
82
Season
68
Time of Day
55
Sky Cover
50
Wind
50
Atmospheric Profile
HRRR (3 km) Valid 2026-05-15 08:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 33.2, -98.0 | 23.0°C | 15.0°C | 975.1 mb | 296.4 m | 29.4 mm | 334.4 | -86.9 |
| 13% | 33.2, -97.8 | 23.7°C | 15.0°C | 977.3 mb | 259.3 m | 28.9 mm | 335.0 | -82.9 |
| 25% | 33.2, -97.7 | 22.8°C | 16.8°C | 982.3 mb | 336.4 m | 28.8 mm | 343.3 | -79.5 |
| 38% | 33.2, -97.5 | 22.2°C | 16.9°C | 976.3 mb | 269.4 m | 27.0 mm | 344.1 | -89.7 |
| Midpoint | 33.2, -97.3 | 21.9°C | 17.4°C | 981.7 mb | 255.7 m | 26.2 mm | 344.5 | -118.6 |
| 63% | 33.1, -97.1 | 23.7°C | 14.6°C | 988.7 mb | 331.9 m | 24.0 mm | 331.7 | -58.0 |
| 75% | 33.1, -97.0 | 23.5°C | 17.3°C | 990.4 mb | 272.6 m | 23.5 mm | 333.1 | -59.5 |
| 88% | 33.1, -96.8 | 23.6°C | 14.9°C | 985.3 mb | 283.7 m | 22.0 mm | 333.0 | -68.1 |
| Destination | 33.1, -96.6 | 24.1°C | 16.0°C | 987.4 mb | 266.6 m | 22.0 mm | 339.6 | -91.5 |
Midpoint vertical profile
18-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
83
at 15:00 UTC
Worst:
71
at 22:00 UTC