Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
70 mi (112 km)
Bearing
108.0°
Terrain
BLOCKED
Propagation
69/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
153.5
dB
Gaseous (O₂+H₂O)
0.8
dB
Diffraction loss
97.0
dB
TOTAL PATH LOSS
251.3
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 7.5 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)
-251.3
dB
RX Ant Gain
30.0
dBi
RX Power
-173.3
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-33.3
dB
Path Weather Avg
Temperature
79.5°F
26.4°C
Dewpoint
45.6°F
7.6°C
T/Td Gap
33.8°F
Abs Humidity
7.5 g/m³
Pressure
978.5 mb
PWAT
15.3 mm
BL Depth
2263.6 m
Refrac Gradient
0 N/km
Propagation Factors · 10 GHz
Rain
100
Pressure
88
Humidity
82
PWAT
75
Season
68
T-Td Depression
55
Refractivity
50
Sky Cover
50
Wind
50
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, -97.5 | 24.9°C | 9.4°C | 985.5 mb | 2208.6 m | 14.2 mm | ||
| 38% | 33.3, -97.3 | 24.7°C | 9.8°C | 983.6 mb | 2071.5 m | 15.0 mm | ||
| Midpoint | 33.3, -97.2 | 26.1°C | 9.3°C | 991.9 mb | 2156.4 m | 16.6 mm | ||
| 63% | 33.2, -97.0 | 27.0°C | 6.4°C | 994.5 mb | 2280.0 m | 15.1 mm | ||
| 75% | 33.2, -96.9 | 27.7°C | 6.0°C | 995.5 mb | 2360.1 m | 15.5 mm | ||
| 88% | 33.2, -96.8 | 27.0°C | 6.8°C | 992.1 mb | 2289.3 m | 16.2 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 · 10 GHz
→ Steady
Best:
83
at 10:00 UTC
Worst:
72
at 02:00 UTC