Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
81 mi (131 km)
Bearing
137.0°
Terrain
BLOCKED
Propagation
69/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
162.4
dB
Gaseous (O₂+H₂O)
4.5
dB
Diffraction loss
115.5
dB
TOTAL PATH LOSS
282.4
dB
Gas rate: 0.0346 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 7.3 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)
-282.4
dB
RX Ant Gain
30.0
dBi
RX Power
-204.4
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-64.4
dB
Path Weather Avg
Temperature
81.2°F
27.3°C
Dewpoint
44.8°F
7.1°C
T/Td Gap
36.4°F
Abs Humidity
7.3 g/m³
Pressure
980.7 mb
PWAT
15.1 mm
BL Depth
2276.6 m
Refrac Gradient
0 N/km
Propagation Factors · 24 GHz
Rain
100
T-Td Depression
96
Pressure
82
PWAT
80
Humidity
55
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 | 34.0, -97.6 | 27.6°C | 7.0°C | 986.5 mb | 2324.1 m | 14.6 mm | ||
| 13% | 33.9, -97.5 | 27.2°C | 7.0°C | 984.8 mb | 2253.3 m | 15.2 mm | ||
| 25% | 33.8, -97.3 | 26.3°C | 9.1°C | 980.7 mb | 2190.1 m | 15.5 mm | ||
| 38% | 33.7, -97.2 | 26.6°C | 8.1°C | 987.2 mb | 2091.7 m | 14.5 mm | ||
| Midpoint | 33.6, -97.1 | 27.1°C | 7.9°C | 992.6 mb | 2235.0 m | 14.7 mm | ||
| 63% | 33.4, -97.0 | 27.3°C | 7.0°C | 991.6 mb | 2251.0 m | 14.2 mm | ||
| 75% | 33.3, -96.9 | 27.6°C | 5.9°C | 993.6 mb | 2289.9 m | 14.3 mm | ||
| 88% | 33.2, -96.7 | 28.1°C | 5.7°C | 991.9 mb | 2354.5 m | 15.8 mm | ||
| Destination | 33.1, -96.6 | 28.4°C | 6.3°C | 993.9 mb | 2499.5 m | 17.5 mm |
Midpoint vertical profile
18-Hour Propagation Forecast · 24 GHz
→ Steady
Best:
73
at 07:00 UTC
Worst:
62
at 13:00 UTC