Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
40 mi (64 km)
Bearing
36.5°
Terrain
BLOCKED
Propagation
66/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
148.6
dB
Gaseous (O₂+H₂O)
0.5
dB
Diffraction loss
77.0
dB
TOTAL PATH LOSS
226.0
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 6.3 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)
-226.0
dB
RX Ant Gain
30.0
dBi
RX Power
-148.0
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-8.0
dB
Path Weather Avg
Temperature
82.3°F
27.9°C
Dewpoint
41.0°F
5.0°C
T/Td Gap
41.3°F
Abs Humidity
6.3 g/m³
Pressure
993.2 mb
PWAT
14.4 mm
BL Depth
2356.1 m
Refrac Gradient
0 N/km
Propagation Factors · 10 GHz
Rain
100
PWAT
75
Pressure
70
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 | 32.7, -97.0 | 27.8°C | 5.4°C | 998.2 mb | 2291.4 m | 12.6 mm | ||
| 13% | 32.7, -97.0 | 28.0°C | 5.7°C | 1000.4 mb | 2390.6 m | 14.1 mm | ||
| 25% | 32.8, -96.9 | 28.5°C | 3.8°C | 997.9 mb | 2366.4 m | 13.4 mm | ||
| 38% | 32.8, -96.9 | 28.4°C | 3.6°C | 999.3 mb | 2334.7 m | 14.1 mm | ||
| Midpoint | 32.9, -96.8 | 28.4°C | 3.6°C | 999.3 mb | 2334.7 m | 14.1 mm | ||
| 63% | 32.9, -96.8 | 27.6°C | 5.0°C | 993.2 mb | 2412.1 m | 15.4 mm | ||
| 75% | 33.0, -96.7 | 27.6°C | 5.0°C | 993.2 mb | 2412.1 m | 15.4 mm | ||
| 88% | 33.1, -96.7 | 26.9°C | 8.9°C | 997.3 mb | 2285.5 m | 16.9 mm | ||
| Destination | 33.1, -96.6 | 28.2°C | 3.9°C | 994.1 mb | 2377.9 m | 13.9 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
81
at 10:00 UTC
Worst:
67
at 01:00 UTC