Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
81 mi (130 km)
Bearing
115.2°
Terrain
BLOCKED
Propagation
79/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
154.7
dB
Gaseous (O₂+H₂O)
0.9
dB
Diffraction loss
105.8
dB
TOTAL PATH LOSS
261.5
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 13.6 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)
-261.5
dB
RX Ant Gain
30.0
dBi
RX Power
-183.5
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-43.5
dB
Path Weather Avg
Temperature
73.1°F
22.8°C
Dewpoint
61.5°F
16.4°C
T/Td Gap
11.6°F
Abs Humidity
13.6 g/m³
Pressure
971.8 mb
PWAT
26.0 mm
BL Depth
307.8 m
Refrac Gradient
-105.1 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 | 33.6, -97.9 | 22.5°C | 17.0°C | 971.8 mb | 318.8 m | 29.7 mm | 347.9 | -91.0 |
| 13% | 33.6, -97.7 | 22.0°C | 17.5°C | 972.1 mb | 323.8 m | 29.9 mm | 351.7 | -105.1 |
| 25% | 33.5, -97.6 | 21.3°C | 17.5°C | 975.1 mb | 314.3 m | 29.4 mm | 348.1 | -83.2 |
| 38% | 33.4, -97.4 | 21.8°C | 17.7°C | 976.0 mb | 279.9 m | 27.2 mm | 350.2 | -97.7 |
| Midpoint | 33.4, -97.2 | 22.1°C | 17.1°C | 982.5 mb | 320.8 m | 26.4 mm | 345.0 | -90.2 |
| 63% | 33.3, -97.1 | 23.7°C | 14.8°C | 985.8 mb | 338.3 m | 24.0 mm | 333.7 | -70.2 |
| 75% | 33.2, -96.9 | 24.1°C | 14.8°C | 988.5 mb | 323.9 m | 23.2 mm | 332.2 | -59.0 |
| 88% | 33.2, -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:
79
at 15:00 UTC
Worst:
65
at 22:00 UTC