Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
173 mi (279 km)
Bearing
78.1°
Terrain
BLOCKED
Propagation
71/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
169.0
dB
Gaseous (O₂+H₂O)
9.2
dB
Diffraction loss
143.3
dB
TOTAL PATH LOSS
321.4
dB
Gas rate: 0.0329 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 6.4 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)
-321.4
dB
RX Ant Gain
30.0
dBi
RX Power
-243.4
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-103.4
dB
Path Weather Avg
Temperature
80.6°F
27.0°C
Dewpoint
41.5°F
5.3°C
T/Td Gap
39.1°F
Abs Humidity
6.4 g/m³
Pressure
957.2 mb
PWAT
13.3 mm
BL Depth
2291.7 m
Refrac Gradient
0 N/km
Propagation Factors · 24 GHz
Rain
100
T-Td Depression
96
Pressure
88
PWAT
80
Humidity
65
Refractivity
50
Sky Cover
50
Wind
50
Season
47
Time of Day
18
Atmospheric Profile
HRRR (3 km) Valid 2026-05-03 20:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 32.7, -99.4 | 25.1°C | 6.2°C | 957.2 mb | 1983.9 m | 12.8 mm | ||
| 13% | 32.8, -99.0 | 27.1°C | 4.5°C | 974.0 mb | 2228.0 m | 12.7 mm | ||
| 25% | 32.8, -98.7 | 26.8°C | 5.2°C | 977.2 mb | 2344.2 m | 13.4 mm | ||
| 38% | 32.9, -98.3 | 27.6°C | 3.8°C | 982.7 mb | 2303.8 m | 12.1 mm | ||
| Midpoint | 32.9, -97.9 | 26.7°C | 3.4°C | 974.9 mb | 2264.2 m | 12.1 mm | ||
| 63% | 33.0, -97.6 | 27.4°C | 7.7°C | 992.0 mb | 2534.8 m | 17.6 mm | ||
| 75% | 33.1, -97.2 | 27.1°C | 6.3°C | 996.2 mb | 2253.7 m | 12.1 mm | ||
| 88% | 33.1, -96.8 | 27.3°C | 6.2°C | 995.3 mb | 2332.9 m | 14.2 mm | ||
| Destination | 33.2, -96.5 | 27.8°C | 4.1°C | 995.4 mb | 2379.9 m | 13.3 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 24 GHz
→ Steady
Best:
77
at 20:00 UTC
Worst:
63
at 12:00 UTC