Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
89 mi (144 km)
Bearing
121.2°
Terrain
BLOCKED
Propagation
61/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
163.2
dB
Gaseous (O₂+H₂O)
6.8
dB
Diffraction loss
120.7
dB
TOTAL PATH LOSS
290.7
dB
Gas rate: 0.0473 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 13.7 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)
-290.7
dB
RX Ant Gain
30.0
dBi
RX Power
-212.7
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-72.7
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
13.7 g/m³
Pressure
967.1 mb
PWAT
26.2 mm
BL Depth
307.4 m
Refrac Gradient
-96.7 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
88
Refractivity
62
T-Td Depression
60
PWAT
60
Time of Day
55
Sky Cover
50
Wind
50
Season
47
Humidity
2
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 | 33.8, -97.9 | 22.9°C | 16.6°C | 976.8 mb | 319.1 m | 29.3 mm | 344.9 | -93.8 |
| 13% | 33.7, -97.8 | 23.2°C | 17.1°C | 975.8 mb | 322.1 m | 29.3 mm | 348.3 | -96.7 |
| 25% | 33.6, -97.6 | 21.0°C | 17.3°C | 967.1 mb | 291.8 m | 28.7 mm | 350.0 | -92.7 |
| 38% | 33.5, -97.4 | 21.9°C | 17.1°C | 975.1 mb | 309.1 m | 28.2 mm | 347.2 | -87.1 |
| Midpoint | 33.5, -97.3 | 21.9°C | 17.4°C | 979.1 mb | 325.4 m | 27.5 mm | 348.2 | -81.7 |
| 63% | 33.4, -97.1 | 23.3°C | 16.3°C | 985.6 mb | 353.9 m | 25.3 mm | 340.5 | -85.8 |
| 75% | 33.3, -96.9 | 23.2°C | 14.8°C | 987.3 mb | 296.8 m | 23.3 mm | 332.3 | -64.6 |
| 88% | 33.2, -96.8 | 24.1°C | 14.8°C | 985.1 mb | 282.1 m | 21.9 mm | 332.4 | -64.2 |
| 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 08:00 UTC
Worst:
53
at 23:00 UTC