Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
117 mi (188 km)
Bearing
36.9°
Terrain
BLOCKED
Propagation
63/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
165.5
dB
Gaseous (O₂+H₂O)
8.6
dB
Diffraction loss
126.6
dB
TOTAL PATH LOSS
300.7
dB
Gas rate: 0.0456 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 12.8 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)
-300.7
dB
RX Ant Gain
30.0
dBi
RX Power
-222.7
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-82.7
dB
Path Weather Avg
Temperature
72.5°F
22.5°C
Dewpoint
59.7°F
15.4°C
T/Td Gap
12.9°F
Abs Humidity
12.8 g/m³
Pressure
970.2 mb
PWAT
22.9 mm
BL Depth
230.1 m
Refrac Gradient
-119.6 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
88
Refractivity
72
T-Td Depression
60
PWAT
60
Time of Day
55
Sky Cover
50
Wind
50
Season
47
Humidity
5
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 | 31.8, -97.8 | 20.1°C | 15.5°C | 970.2 mb | 166.3 m | 21.7 mm | 341.1 | -93.3 |
| 13% | 31.9, -97.7 | 20.7°C | 14.8°C | 984.4 mb | 88.3 m | 22.5 mm | 339.2 | -78.4 |
| 25% | 32.1, -97.5 | 21.6°C | 15.0°C | 990.4 mb | 207.3 m | 22.5 mm | 335.9 | -96.9 |
| 38% | 32.3, -97.4 | 22.3°C | 15.0°C | 985.3 mb | 246.5 m | 23.4 mm | 337.2 | -104.0 |
| Midpoint | 32.4, -97.2 | 22.7°C | 14.8°C | 983.7 mb | 232.5 m | 23.2 mm | 336.5 | -119.6 |
| 63% | 32.6, -97.1 | 22.5°C | 15.4°C | 987.9 mb | 252.5 m | 24.0 mm | 338.5 | -104.2 |
| 75% | 32.8, -96.9 | 24.2°C | 16.2°C | 991.3 mb | 300.0 m | 24.0 mm | 341.6 | -86.6 |
| 88% | 33.0, -96.8 | 24.5°C | 15.6°C | 986.8 mb | 310.9 m | 22.9 mm | 338.6 | -81.7 |
| 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 · 24 GHz
→ Steady
Best:
64
at 18:00 UTC
Worst:
58
at 01:00 UTC