Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
161 mi (259 km)
Bearing
45.4°
Terrain
BLOCKED
Propagation
68/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
160.7
dB
Gaseous (O₂+H₂O)
1.8
dB
Diffraction loss
126.7
dB
TOTAL PATH LOSS
289.3
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 6.7 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)
-289.3
dB
RX Ant Gain
30.0
dBi
RX Power
-211.3
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-71.3
dB
Path Weather Avg
Temperature
78.7°F
26.0°C
Dewpoint
42.5°F
5.8°C
T/Td Gap
36.2°F
Abs Humidity
6.7 g/m³
Pressure
964.0 mb
PWAT
13.1 mm
BL Depth
2178.1 m
Refrac Gradient
0 N/km
Propagation Factors · 10 GHz
Rain
100
Pressure
88
PWAT
75
Humidity
70
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 | 31.6, -98.4 | 22.4°C | 6.9°C | 964.0 mb | 1688.8 m | 11.7 mm | ||
| 13% | 31.8, -98.2 | 24.5°C | 6.5°C | 975.5 mb | 1942.4 m | 12.7 mm | ||
| 25% | 32.0, -97.9 | 25.4°C | 5.8°C | 978.3 mb | 2042.3 m | 12.6 mm | ||
| 38% | 32.2, -97.7 | 25.6°C | 6.0°C | 981.8 mb | 2038.5 m | 12.3 mm | ||
| Midpoint | 32.4, -97.4 | 26.7°C | 5.4°C | 986.5 mb | 2296.8 m | 12.9 mm | ||
| 63% | 32.6, -97.2 | 25.4°C | 7.2°C | 994.8 mb | 2411.9 m | 13.1 mm | ||
| 75% | 32.8, -96.9 | 28.0°C | 5.7°C | 1000.4 mb | 2390.6 m | 14.1 mm | ||
| 88% | 33.0, -96.7 | 27.6°C | 5.0°C | 993.2 mb | 2412.1 m | 15.4 mm | ||
| Destination | 33.2, -96.5 | 27.8°C | 4.1°C | 995.4 mb | 2379.9 m | 13.3 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
83
at 07:00 UTC
Worst:
66
at 23:00 UTC