Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
27 mi (43 km)
Bearing
149.1°
Terrain
BLOCKED
Propagation
70/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
145.2
dB
Gaseous (O₂+H₂O)
0.3
dB
Diffraction loss
62.6
dB
TOTAL PATH LOSS
208.2
dB
Gas rate: 0.0069 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 15.0 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)
-208.2
dB
RX Ant Gain
30.0
dBi
RX Power
-130.2
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
9.8
dB
Path Weather Avg
Temperature
68.5°F
20.3°C
Dewpoint
63.9°F
17.7°C
T/Td Gap
4.6°F
Abs Humidity
15.0 g/m³
Pressure
989.4 mb
PWAT
40.8 mm
BL Depth
621.2 m
Refrac Gradient
-67.6 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
95
Pressure
82
T-Td Depression
75
Season
68
Refractivity
55
PWAT
50
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 | 33.5, -96.7 | 21.0°C | 17.2°C | 991.7 mb | 662.0 m | 37.5 mm | 347.9 | -67.6 |
| 13% | 33.5, -96.7 | 20.3°C | 17.6°C | 989.4 mb | 611.2 m | 41.1 mm | 351.5 | -62.7 |
| 25% | 33.4, -96.6 | 20.3°C | 17.6°C | 989.4 mb | 611.2 m | 41.1 mm | 351.5 | -62.7 |
| 38% | 33.4, -96.6 | 20.0°C | 17.7°C | 994.3 mb | 583.6 m | 39.8 mm | 353.6 | -57.8 |
| Midpoint | 33.4, -96.6 | 20.0°C | 17.7°C | 994.3 mb | 583.6 m | 39.8 mm | 353.6 | -57.8 |
| 63% | 33.3, -96.5 | 20.7°C | 17.8°C | 995.8 mb | 738.5 m | 43.3 mm | 353.0 | -56.6 |
| 75% | 33.3, -96.5 | 20.1°C | 17.9°C | 997.2 mb | 600.2 m | 41.5 mm | 353.7 | -58.9 |
| 88% | 33.2, -96.5 | 20.1°C | 17.9°C | 997.2 mb | 600.2 m | 41.5 mm | 353.7 | -58.9 |
| Destination | 33.2, -96.5 | 20.1°C | 17.9°C | 997.2 mb | 600.2 m | 41.5 mm | 353.7 | -58.9 |
Midpoint vertical profile
17-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
75
at 10:00 UTC
Worst:
60
at 02:00 UTC