Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
102 mi (164 km)
Bearing
93.0°
Terrain
BLOCKED
Propagation
62/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
164.4
dB
Gaseous (O₂+H₂O)
7.5
dB
Diffraction loss
119.6
dB
TOTAL PATH LOSS
291.5
dB
Gas rate: 0.0457 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 12.8 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)
-291.5
dB
RX Ant Gain
30.0
dBi
RX Power
-213.5
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-73.5
dB
Path Weather Avg
Temperature
73.5°F
23.1°C
Dewpoint
59.7°F
15.4°C
T/Td Gap
13.8°F
Abs Humidity
12.8 g/m³
Pressure
964.3 mb
PWAT
25.9 mm
BL Depth
280.8 m
Refrac Gradient
-94.3 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
5
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 | 33.2, -98.4 | 23.7°C | 12.5°C | 964.3 mb | 326.6 m | 25.8 mm | 326.3 | -66.3 |
| 13% | 33.2, -98.2 | 22.8°C | 14.0°C | 973.5 mb | 259.2 m | 29.0 mm | 330.6 | -70.3 |
| 25% | 33.2, -97.9 | 23.0°C | 14.6°C | 973.0 mb | 257.1 m | 29.2 mm | 334.2 | -94.3 |
| 38% | 33.2, -97.7 | 23.5°C | 15.7°C | 979.2 mb | 337.1 m | 29.2 mm | 337.0 | -71.1 |
| Midpoint | 33.2, -97.5 | 22.2°C | 16.9°C | 976.3 mb | 269.4 m | 27.0 mm | 344.1 | -89.7 |
| 63% | 33.2, -97.3 | 21.3°C | 16.7°C | 983.4 mb | 259.1 m | 24.9 mm | 338.8 | -85.7 |
| 75% | 33.1, -97.1 | 23.5°C | 17.3°C | 990.4 mb | 272.6 m | 23.5 mm | 333.1 | -59.5 |
| 88% | 33.1, -96.8 | 23.5°C | 15.0°C | 988.3 mb | 279.1 m | 22.7 mm | 332.9 | -69.0 |
| 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:
66
at 15:00 UTC
Worst:
53
at 00:00 UTC