Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
145 mi (233 km)
Bearing
99.7°
Terrain
BLOCKED
Propagation
63/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
167.4
dB
Gaseous (O₂+H₂O)
10.1
dB
Diffraction loss
136.3
dB
TOTAL PATH LOSS
313.8
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)
-313.8
dB
RX Ant Gain
30.0
dBi
RX Power
-235.8
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-95.8
dB
Path Weather Avg
Temperature
74.6°F
23.7°C
Dewpoint
57.4°F
14.1°C
T/Td Gap
17.2°F
Abs Humidity
11.7 g/m³
Pressure
961.6 mb
PWAT
25.6 mm
BL Depth
303.8 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 | 33.5, -99.1 | 26.6°C | 8.5°C | 961.6 mb | 283.4 m | 25.2 mm | 297.2 | -38.2 |
| 13% | 33.5, -98.8 | 25.6°C | 10.0°C | 967.5 mb | 276.0 m | 23.8 mm | 295.5 | -71.7 |
| 25% | 33.4, -98.5 | 24.2°C | 12.6°C | 967.8 mb | 347.8 m | 24.9 mm | 324.2 | -77.6 |
| 38% | 33.4, -98.2 | 21.9°C | 14.1°C | 972.7 mb | 315.4 m | 29.0 mm | 331.2 | -61.8 |
| Midpoint | 33.3, -97.8 | 22.9°C | 16.6°C | 978.8 mb | 351.3 m | 30.5 mm | 336.8 | -83.6 |
| 63% | 33.3, -97.5 | 22.4°C | 17.0°C | 977.7 mb | 301.3 m | 27.0 mm | 345.7 | -86.6 |
| 75% | 33.2, -97.2 | 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 | 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 17:00 UTC
Worst:
49
at 00:00 UTC