Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
152 mi (244 km)
Bearing
84.2°
Terrain
BLOCKED
Propagation
55/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
167.8
dB
Gaseous (O₂+H₂O)
12.0
dB
Diffraction loss
139.3
dB
TOTAL PATH LOSS
319.1
dB
Gas rate: 0.0492 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 14.6 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)
-319.1
dB
RX Ant Gain
30.0
dBi
RX Power
-241.1
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-101.1
dB
Path Weather Avg
Temperature
67.4°F
19.7°C
Dewpoint
63.1°F
17.3°C
T/Td Gap
4.3°F
Abs Humidity
14.6 g/m³
Pressure
970.6 mb
PWAT
38.4 mm
BL Depth
529.7 m
Refrac Gradient
-83.7 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
88
Refractivity
62
Sky Cover
50
Wind
50
Season
47
T-Td Depression
38
PWAT
35
Time of Day
18
Humidity
0
Atmospheric Profile
HRRR (3 km) Valid 2026-05-10 22:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 32.9, -99.2 | 19.1°C | 16.9°C | 970.6 mb | 763.4 m | 39.0 mm | 354.4 | -54.7 |
| 13% | 33.0, -98.9 | 18.8°C | 16.6°C | 972.8 mb | 523.0 m | 37.8 mm | 351.9 | -63.0 |
| 25% | 33.0, -98.6 | 20.1°C | 16.9°C | 977.5 mb | 593.6 m | 37.5 mm | 350.8 | -79.8 |
| 38% | 33.0, -98.2 | 19.6°C | 17.0°C | 978.3 mb | 410.3 m | 37.5 mm | 352.9 | -83.7 |
| Midpoint | 33.0, -97.9 | 19.6°C | 17.1°C | 973.4 mb | 454.5 m | 33.7 mm | 356.7 | -73.9 |
| 63% | 33.0, -97.6 | 20.8°C | 18.0°C | 986.0 mb | 583.3 m | 39.8 mm | 357.4 | -52.5 |
| 75% | 33.1, -97.3 | 19.8°C | 17.6°C | 990.7 mb | 482.5 m | 39.9 mm | 351.2 | -56.1 |
| 88% | 33.1, -96.9 | 19.7°C | 17.9°C | 997.7 mb | 441.0 m | 40.7 mm | 353.7 | -62.8 |
| Destination | 33.1, -96.6 | 19.3°C | 17.7°C | 994.8 mb | 516.1 m | 39.8 mm | 353.4 | -58.4 |
Midpoint vertical profile
17-Hour Propagation Forecast · 24 GHz
→ Steady
Best:
73
at 13:00 UTC
Worst:
42
at 01:00 UTC