Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
72 mi (116 km)
Bearing
19.2°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
153.7
dB
Gaseous (O₂+H₂O)
0.8
dB
Diffraction loss
95.2
dB
TOTAL PATH LOSS
249.8
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 16.0 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)
-249.8
dB
RX Ant Gain
30.0
dBi
RX Power
-171.8
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-31.8
dB
Path Weather Avg
Temperature
72.8°F
22.7°C
Dewpoint
66.1°F
18.9°C
T/Td Gap
6.7°F
Abs Humidity
16.0 g/m³
Pressure
989.2 mb
PWAT
39.4 mm
BL Depth
495.6 m
Refrac Gradient
-76.4 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
95
Pressure
82
T-Td Depression
75
PWAT
70
Refractivity
68
Season
68
Sky Cover
50
Wind
50
Time of Day
18
Atmospheric Profile
HRRR (3 km) Valid 2026-05-10 21:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 32.1, -97.0 | 26.2°C | 20.9°C | 989.2 mb | 684.7 m | 39.1 mm | 359.2 | -52.1 |
| 13% | 32.3, -97.0 | 25.6°C | 20.5°C | 992.2 mb | 531.7 m | 40.5 mm | 359.1 | -55.7 |
| 25% | 32.4, -96.9 | 25.4°C | 19.7°C | 993.9 mb | 496.9 m | 39.8 mm | 357.3 | -58.1 |
| 38% | 32.5, -96.9 | 23.4°C | 19.2°C | 990.9 mb | 468.6 m | 38.2 mm | 358.3 | -66.5 |
| Midpoint | 32.6, -96.8 | 21.8°C | 18.8°C | 993.3 mb | 502.6 m | 41.5 mm | 353.7 | -55.1 |
| 63% | 32.7, -96.8 | 21.9°C | 18.1°C | 1001.4 mb | 448.2 m | 39.5 mm | 350.9 | -76.4 |
| 75% | 32.9, -96.7 | 20.7°C | 17.6°C | 998.3 mb | 433.5 m | 37.3 mm | 352.1 | -73.4 |
| 88% | 33.0, -96.7 | 19.7°C | 18.0°C | 998.0 mb | 438.2 m | 38.7 mm | 353.2 | -71.9 |
| Destination | 33.1, -96.6 | 19.4°C | 17.8°C | 995.0 mb | 456.2 m | 40.3 mm | 354.2 | -62.2 |
Midpoint vertical profile
17-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
75
at 22:00 UTC
Worst:
66
at 02:00 UTC