Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
112 mi (180 km)
Bearing
93.2°
Terrain
BLOCKED
Propagation
64/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
165.2
dB
Gaseous (O₂+H₂O)
8.1
dB
Diffraction loss
125.3
dB
TOTAL PATH LOSS
298.5
dB
Gas rate: 0.0449 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 12.4 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)
-298.5
dB
RX Ant Gain
30.0
dBi
RX Power
-220.5
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-80.5
dB
Path Weather Avg
Temperature
73.9°F
23.3°C
Dewpoint
58.9°F
14.9°C
T/Td Gap
15.0°F
Abs Humidity
12.4 g/m³
Pressure
963.4 mb
PWAT
26.2 mm
BL Depth
295.0 m
Refrac Gradient
-118.6 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
88
T-Td Depression
80
Refractivity
72
PWAT
60
Time of Day
55
Sky Cover
50
Wind
50
Season
47
Humidity
6
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, -98.5 | 23.6°C | 12.8°C | 963.4 mb | 350.6 m | 26.4 mm | 326.1 | -66.3 |
| 13% | 33.2, -98.3 | 23.4°C | 12.9°C | 970.4 mb | 316.6 m | 27.5 mm | 326.8 | -54.0 |
| 25% | 33.2, -98.1 | 22.8°C | 14.0°C | 973.5 mb | 259.2 m | 29.0 mm | 330.6 | -70.3 |
| 38% | 33.2, -97.8 | 23.7°C | 15.0°C | 977.3 mb | 259.3 m | 28.9 mm | 335.0 | -82.9 |
| Midpoint | 33.2, -97.6 | 22.8°C | 16.8°C | 982.3 mb | 336.4 m | 28.8 mm | 343.3 | -79.5 |
| 63% | 33.2, -97.3 | 21.9°C | 17.4°C | 981.7 mb | 255.7 m | 26.2 mm | 344.5 | -118.6 |
| 75% | 33.1, -97.1 | 23.7°C | 14.6°C | 988.7 mb | 331.9 m | 24.0 mm | 331.7 | -58.0 |
| 88% | 33.1, -96.9 | 23.5°C | 15.0°C | 988.3 mb | 279.1 m | 22.7 mm | 332.9 | -69.0 |
| 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:
66
at 10:00 UTC
Worst:
50
at 00:00 UTC