Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
81 mi (130 km)
Bearing
115.2°
Terrain
BLOCKED
Propagation
69/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
154.7
dB
Gaseous (O₂+H₂O)
0.9
dB
Diffraction loss
106.1
dB
TOTAL PATH LOSS
261.7
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 7.3 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)
-261.7
dB
RX Ant Gain
30.0
dBi
RX Power
-183.7
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-43.7
dB
Path Weather Avg
Temperature
79.8°F
26.5°C
Dewpoint
44.7°F
7.0°C
T/Td Gap
35.1°F
Abs Humidity
7.3 g/m³
Pressure
979.0 mb
PWAT
14.7 mm
BL Depth
2263.4 m
Refrac Gradient
0 N/km
Propagation Factors · 10 GHz
Rain
100
Pressure
88
Humidity
82
PWAT
75
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 | 33.6, -97.9 | 26.4°C | 5.1°C | 979.0 mb | 2249.9 m | 12.3 mm | ||
| 13% | 33.6, -97.7 | 26.3°C | 5.9°C | 979.3 mb | 2248.8 m | 13.3 mm | ||
| 25% | 33.5, -97.6 | 25.4°C | 8.8°C | 982.0 mb | 2240.3 m | 15.2 mm | ||
| 38% | 33.4, -97.4 | 24.7°C | 9.8°C | 983.6 mb | 2071.5 m | 15.0 mm | ||
| Midpoint | 33.4, -97.2 | 26.4°C | 8.3°C | 989.9 mb | 2184.3 m | 14.2 mm | ||
| 63% | 33.3, -97.1 | 26.7°C | 6.5°C | 993.2 mb | 2227.0 m | 13.2 mm | ||
| 75% | 33.2, -96.9 | 27.7°C | 6.0°C | 995.5 mb | 2360.1 m | 15.5 mm | ||
| 88% | 33.2, -96.8 | 27.0°C | 6.8°C | 992.1 mb | 2289.3 m | 16.2 mm | ||
| Destination | 33.1, -96.6 | 28.4°C | 6.3°C | 993.9 mb | 2499.5 m | 17.5 mm |
Midpoint vertical profile
18-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
84
at 05:00 UTC
Worst:
74
at 00:00 UTC