Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
49 mi (79 km)
Bearing
56.4°
Terrain
BLOCKED
Propagation
62/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
158.0
dB
Gaseous (O₂+H₂O)
3.6
dB
Diffraction loss
94.3
dB
TOTAL PATH LOSS
255.9
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)
-255.9
dB
RX Ant Gain
30.0
dBi
RX Power
-177.9
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-37.9
dB
Path Weather Avg
Temperature
74.6°F
23.6°C
Dewpoint
59.2°F
15.1°C
T/Td Gap
15.4°F
Abs Humidity
12.5 g/m³
Pressure
985.3 mb
PWAT
23.3 mm
BL Depth
281.9 m
Refrac Gradient
-91.5 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
82
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 | 32.7, -97.3 | 23.0°C | 15.1°C | 989.3 mb | 263.9 m | 24.8 mm | 332.0 | -70.3 |
| 13% | 32.8, -97.2 | 23.5°C | 14.1°C | 989.0 mb | 267.3 m | 23.9 mm | 330.4 | -68.4 |
| 25% | 32.8, -97.1 | 23.4°C | 14.6°C | 988.9 mb | 292.7 m | 23.8 mm | 332.9 | -58.5 |
| 38% | 32.9, -97.1 | 23.9°C | 15.0°C | 990.9 mb | 289.9 m | 23.7 mm | 334.8 | -68.1 |
| Midpoint | 32.9, -97.0 | 23.9°C | 15.0°C | 990.9 mb | 289.9 m | 23.7 mm | 334.8 | -68.1 |
| 63% | 33.0, -96.9 | 23.0°C | 15.6°C | 988.3 mb | 272.4 m | 23.2 mm | 336.7 | -85.3 |
| 75% | 33.0, -96.8 | 24.5°C | 15.6°C | 986.8 mb | 310.9 m | 22.9 mm | 338.6 | -81.7 |
| 88% | 33.1, -96.7 | 23.6°C | 14.9°C | 985.3 mb | 283.7 m | 22.0 mm | 333.0 | -68.1 |
| 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:
65
at 17:00 UTC
Worst:
57
at 00:00 UTC