Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
152 mi (244 km)
Bearing
84.2°
Terrain
BLOCKED
Propagation
63/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
167.8
dB
Gaseous (O₂+H₂O)
11.0
dB
Diffraction loss
139.2
dB
TOTAL PATH LOSS
318.0
dB
Gas rate: 0.0451 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 12.5 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)
-318.0
dB
RX Ant Gain
30.0
dBi
RX Power
-240.0
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-100.0
dB
Path Weather Avg
Temperature
74.2°F
23.5°C
Dewpoint
59.2°F
15.1°C
T/Td Gap
15.1°F
Abs Humidity
12.5 g/m³
Pressure
962.5 mb
PWAT
27.4 mm
BL Depth
278.9 m
Refrac Gradient
-91.5 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
6
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 | 32.9, -99.2 | 24.7°C | 15.1°C | 962.5 mb | 152.3 m | 31.5 mm | 332.3 | -90.4 |
| 13% | 33.0, -98.9 | 23.2°C | 13.8°C | 965.2 mb | 261.0 m | 30.5 mm | 327.3 | -57.7 |
| 25% | 33.0, -98.6 | 24.9°C | 12.2°C | 970.5 mb | 316.8 m | 30.2 mm | 320.3 | -58.4 |
| 38% | 33.0, -98.2 | 22.7°C | 14.0°C | 971.6 mb | 326.4 m | 28.9 mm | 329.0 | -82.4 |
| Midpoint | 33.0, -97.9 | 23.9°C | 14.3°C | 967.5 mb | 328.3 m | 27.3 mm | 334.9 | -78.6 |
| 63% | 33.0, -97.6 | 22.9°C | 16.5°C | 978.6 mb | 326.9 m | 27.8 mm | 342.7 | -82.5 |
| 75% | 33.1, -97.3 | 21.3°C | 16.7°C | 983.4 mb | 259.1 m | 24.9 mm | 338.8 | -85.7 |
| 88% | 33.1, -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:
63
at 12:00 UTC
Worst:
52
at 00:00 UTC