Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
81 mi (131 km)
Bearing
93.0°
Terrain
BLOCKED
Propagation
68/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
154.8
dB
Gaseous (O₂+H₂O)
0.9
dB
Diffraction loss
96.3
dB
TOTAL PATH LOSS
252.0
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 7.4 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)
-252.0
dB
RX Ant Gain
30.0
dBi
RX Power
-174.0
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-34.0
dB
Path Weather Avg
Temperature
79.8°F
26.6°C
Dewpoint
45.3°F
7.4°C
T/Td Gap
34.6°F
Abs Humidity
7.4 g/m³
Pressure
982.5 mb
PWAT
15.0 mm
BL Depth
2343.3 m
Refrac Gradient
0 N/km
Propagation Factors · 10 GHz
Rain
100
Pressure
82
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 | 33.2, -98.0 | 26.9°C | 6.3°C | 982.5 mb | 2257.7 m | 13.3 mm | ||
| 13% | 33.2, -97.8 | 27.2°C | 4.0°C | 984.7 mb | 2283.5 m | 11.3 mm | ||
| 25% | 33.2, -97.7 | 27.2°C | 7.0°C | 989.5 mb | 2407.1 m | 15.2 mm | ||
| 38% | 33.2, -97.5 | 25.2°C | 8.4°C | 983.8 mb | 2321.5 m | 14.6 mm | ||
| Midpoint | 33.2, -97.3 | 25.3°C | 8.9°C | 989.2 mb | 2341.2 m | 15.5 mm | ||
| 63% | 33.1, -97.1 | 27.2°C | 7.8°C | 996.1 mb | 2300.4 m | 15.3 mm | ||
| 75% | 33.1, -97.0 | 24.6°C | 10.8°C | 997.5 mb | 2389.3 m | 16.5 mm | ||
| 88% | 33.1, -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:
82
at 10:00 UTC
Worst:
73
at 11:00 UTC