Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
152 mi (244 km)
Bearing
100.6°
Terrain
BLOCKED
Propagation
63/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
167.8
dB
Gaseous (O₂+H₂O)
10.6
dB
Diffraction loss
137.4
dB
TOTAL PATH LOSS
315.8
dB
Gas rate: 0.0435 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 11.7 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)
-315.8
dB
RX Ant Gain
30.0
dBi
RX Power
-237.8
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-97.8
dB
Path Weather Avg
Temperature
74.8°F
23.8°C
Dewpoint
57.4°F
14.1°C
T/Td Gap
17.4°F
Abs Humidity
11.7 g/m³
Pressure
961.0 mb
PWAT
25.5 mm
BL Depth
299.9 m
Refrac Gradient
-96.1 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
88
T-Td Depression
80
Refractivity
62
PWAT
60
Time of Day
55
Sky Cover
50
Wind
50
Season
47
Humidity
8
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, -99.2 | 26.0°C | 9.1°C | 961.0 mb | 281.3 m | 25.4 mm | 300.3 | -42.8 |
| 13% | 33.5, -98.9 | 26.2°C | 9.1°C | 963.2 mb | 281.6 m | 23.5 mm | 293.2 | -53.4 |
| 25% | 33.4, -98.5 | 24.9°C | 12.1°C | 967.3 mb | 325.8 m | 23.3 mm | 322.7 | -86.7 |
| 38% | 33.4, -98.2 | 22.8°C | 12.6°C | 972.5 mb | 309.9 m | 27.3 mm | 324.2 | -52.4 |
| Midpoint | 33.3, -97.9 | 22.9°C | 16.6°C | 972.5 mb | 332.9 m | 30.2 mm | 343.1 | -88.0 |
| 63% | 33.3, -97.6 | 21.8°C | 17.1°C | 977.7 mb | 314.6 m | 28.5 mm | 344.8 | -77.9 |
| 75% | 33.2, -97.3 | 22.0°C | 17.0°C | 984.4 mb | 313.6 m | 25.7 mm | 342.4 | -96.1 |
| 88% | 33.2, -96.9 | 23.5°C | 17.3°C | 990.4 mb | 272.6 m | 23.5 mm | 333.1 | -59.5 |
| 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 12:00 UTC
Worst:
52
at 22:00 UTC