Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
13 mi (21 km)
Bearing
258.6°
Terrain
CLEAR
Propagation
79/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
139.0
dB
Gaseous (O₂+H₂O)
0.2
dB
TOTAL PATH LOSS
139.2
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 14.5 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)
-139.2
dB
RX Ant Gain
30.0
dBi
RX Power
-61.2
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
78.8
dB
Path Weather Avg
Temperature
72.2°F
22.3°C
Dewpoint
63.2°F
17.3°C
T/Td Gap
9.1°F
Abs Humidity
14.5 g/m³
Pressure
987.4 mb
PWAT
22.3 mm
BL Depth
234.9 m
Refrac Gradient
-120.9 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
95
PWAT
90
T-Td Depression
85
Pressure
82
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 | 33.2, -96.4 | 21.0°C | 17.9°C | 990.6 mb | 216.4 m | 21.5 mm | 344.4 | -119.7 |
| 13% | 33.2, -96.4 | 21.0°C | 17.9°C | 990.6 mb | 216.4 m | 21.5 mm | 344.4 | -119.7 |
| 25% | 33.1, -96.4 | 22.2°C | 17.6°C | 991.0 mb | 229.6 m | 22.7 mm | 345.9 | -120.9 |
| 38% | 33.1, -96.5 | 22.2°C | 17.6°C | 991.0 mb | 229.6 m | 22.7 mm | 345.9 | -120.9 |
| Midpoint | 33.1, -96.5 | 22.2°C | 17.6°C | 991.0 mb | 229.6 m | 22.7 mm | 345.9 | -120.9 |
| 63% | 33.1, -96.5 | 22.2°C | 17.6°C | 991.0 mb | 229.6 m | 22.7 mm | 345.9 | -120.9 |
| 75% | 33.1, -96.6 | 22.2°C | 17.6°C | 991.0 mb | 229.6 m | 22.7 mm | 345.9 | -120.9 |
| 88% | 33.1, -96.6 | 24.1°C | 16.0°C | 987.4 mb | 266.6 m | 22.0 mm | 339.6 | -91.5 |
| 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:
85
at 08:00 UTC
Worst:
72
at 22:00 UTC