Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
91 mi (146 km)
Bearing
143.1°
Terrain
BLOCKED
Propagation
62/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
163.3
dB
Gaseous (O₂+H₂O)
6.9
dB
Diffraction loss
119.0
dB
TOTAL PATH LOSS
289.2
dB
Gas rate: 0.0471 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 13.5 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)
-289.2
dB
RX Ant Gain
30.0
dBi
RX Power
-211.2
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-71.2
dB
Path Weather Avg
Temperature
74.3°F
23.5°C
Dewpoint
61.3°F
16.3°C
T/Td Gap
13.0°F
Abs Humidity
13.5 g/m³
Pressure
972.9 mb
PWAT
26.8 mm
BL Depth
325.5 m
Refrac Gradient
-91.8 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
3
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 | 34.2, -97.6 | 23.2°C | 16.6°C | 972.9 mb | 323.6 m | 29.4 mm | 345.1 | -82.7 |
| 13% | 34.0, -97.4 | 23.5°C | 16.4°C | 978.5 mb | 340.3 m | 30.3 mm | 342.7 | -73.5 |
| 25% | 33.9, -97.3 | 23.7°C | 17.0°C | 981.2 mb | 328.6 m | 30.5 mm | 345.9 | -77.6 |
| 38% | 33.8, -97.2 | 23.4°C | 17.0°C | 981.3 mb | 349.3 m | 29.7 mm | 346.9 | -91.8 |
| Midpoint | 33.6, -97.1 | 22.5°C | 17.3°C | 981.9 mb | 348.1 m | 27.9 mm | 347.2 | -80.8 |
| 63% | 33.5, -97.0 | 23.2°C | 16.3°C | 984.6 mb | 351.7 m | 25.5 mm | 341.3 | -83.7 |
| 75% | 33.4, -96.9 | 23.7°C | 15.3°C | 986.5 mb | 339.3 m | 23.5 mm | 334.5 | -81.8 |
| 88% | 33.3, -96.7 | 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:
63
at 10:00 UTC
Worst:
52
at 23:00 UTC