Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
78 mi (125 km)
Bearing
102.4°
Terrain
BLOCKED
Propagation
70/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
162.0
dB
Gaseous (O₂+H₂O)
4.3
dB
Diffraction loss
112.3
dB
TOTAL PATH LOSS
278.6
dB
Gas rate: 0.0343 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 7.1 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)
-278.6
dB
RX Ant Gain
30.0
dBi
RX Power
-200.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-60.6
dB
Path Weather Avg
Temperature
80.0°F
26.7°C
Dewpoint
44.2°F
6.8°C
T/Td Gap
35.9°F
Abs Humidity
7.1 g/m³
Pressure
978.5 mb
PWAT
14.3 mm
BL Depth
2248.7 m
Refrac Gradient
0 N/km
Propagation Factors · 24 GHz
Rain
100
T-Td Depression
96
Pressure
88
PWAT
80
Humidity
57
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 | 33.4, -97.8 | 26.9°C | 6.0°C | 985.3 mb | 2296.8 m | 13.3 mm | ||
| 13% | 33.4, -97.6 | 24.7°C | 8.2°C | 978.5 mb | 2210.2 m | 14.3 mm | ||
| 25% | 33.4, -97.4 | 24.7°C | 9.8°C | 983.6 mb | 2071.5 m | 15.0 mm | ||
| 38% | 33.3, -97.3 | 26.4°C | 8.3°C | 989.9 mb | 2184.3 m | 14.2 mm | ||
| Midpoint | 33.3, -97.1 | 27.3°C | 7.0°C | 993.0 mb | 2235.5 m | 14.1 mm | ||
| 63% | 33.3, -96.9 | 27.0°C | 6.4°C | 994.5 mb | 2280.0 m | 15.1 mm | ||
| 75% | 33.3, -96.8 | 28.1°C | 5.7°C | 991.9 mb | 2354.5 m | 15.8 mm | ||
| 88% | 33.2, -96.6 | 27.6°C | 4.7°C | 994.3 mb | 2315.0 m | 13.5 mm | ||
| Destination | 33.2, -96.5 | 27.6°C | 4.8°C | 995.4 mb | 2290.7 m | 13.7 mm |
Midpoint vertical profile
18-Hour Propagation Forecast · 24 GHz
→ Steady
Best:
74
at 07:00 UTC
Worst:
63
at 13:00 UTC