Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
146 mi (236 km)
Bearing
37.9°
Terrain
BLOCKED
Propagation
79/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
159.9
dB
Gaseous (O₂+H₂O)
1.6
dB
Diffraction loss
123.1
dB
TOTAL PATH LOSS
284.6
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 13.1 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)
-284.6
dB
RX Ant Gain
30.0
dBi
RX Power
-206.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-66.6
dB
Path Weather Avg
Temperature
71.5°F
21.9°C
Dewpoint
60.3°F
15.7°C
T/Td Gap
11.2°F
Abs Humidity
13.1 g/m³
Pressure
969.1 mb
PWAT
22.8 mm
BL Depth
205.7 m
Refrac Gradient
-119.6 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
90
PWAT
90
Pressure
88
T-Td Depression
85
Refractivity
82
Season
68
Time of Day
55
Sky Cover
50
Wind
50
Atmospheric Profile
HRRR (3 km) Valid 2026-05-15 08:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 31.5, -98.2 | 20.0°C | 15.8°C | 969.1 mb | 65.1 m | 22.3 mm | 340.9 | -111.5 |
| 13% | 31.7, -98.0 | 19.4°C | 15.8°C | 972.4 mb | 146.1 m | 21.4 mm | 338.3 | -104.8 |
| 25% | 31.9, -97.8 | 20.2°C | 16.1°C | 976.8 mb | 179.8 m | 22.5 mm | 343.3 | -82.9 |
| 38% | 32.1, -97.6 | 21.8°C | 15.1°C | 982.5 mb | 171.1 m | 22.2 mm | 338.8 | -76.2 |
| Midpoint | 32.3, -97.4 | 22.3°C | 15.0°C | 985.3 mb | 246.5 m | 23.4 mm | 337.2 | -104.0 |
| 63% | 32.5, -97.2 | 22.7°C | 14.8°C | 983.7 mb | 232.5 m | 23.2 mm | 336.5 | -119.6 |
| 75% | 32.7, -97.0 | 23.7°C | 15.5°C | 993.7 mb | 268.9 m | 24.3 mm | 336.8 | -82.6 |
| 88% | 32.9, -96.8 | 23.3°C | 17.1°C | 992.3 mb | 274.3 m | 24.2 mm | 344.2 | -101.9 |
| Destination | 33.1, -96.6 | 24.1°C | 16.0°C | 987.4 mb | 266.6 m | 22.0 mm | 339.6 | -91.5 |
Midpoint vertical profile
18-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
78
at 08:00 UTC
Worst:
71
at 19:00 UTC