Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
41 mi (66 km)
Bearing
226.2°
Terrain
BLOCKED
Propagation
69/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
148.8
dB
Gaseous (O₂+H₂O)
0.5
dB
Diffraction loss
83.0
dB
TOTAL PATH LOSS
232.3
dB
Gas rate: 0.0070 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)
-232.3
dB
RX Ant Gain
30.0
dBi
RX Power
-154.3
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-14.3
dB
Path Weather Avg
Temperature
67.0°F
19.4°C
Dewpoint
63.8°F
17.7°C
T/Td Gap
3.2°F
Abs Humidity
15.0 g/m³
Pressure
992.6 mb
PWAT
40.6 mm
BL Depth
562.6 m
Refrac Gradient
-72.5 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
95
T-Td Depression
75
Pressure
70
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 | 33.6, -95.9 | 19.6°C | 17.3°C | 996.9 mb | 584.4 m | 37.1 mm | 349.6 | -64.7 |
| 13% | 33.5, -96.0 | 20.1°C | 17.5°C | 995.2 mb | 605.7 m | 40.3 mm | 351.6 | -72.3 |
| 25% | 33.5, -96.1 | 19.6°C | 17.6°C | 992.6 mb | 585.7 m | 38.7 mm | 353.4 | -72.5 |
| 38% | 33.4, -96.1 | 19.6°C | 17.6°C | 992.6 mb | 585.7 m | 38.7 mm | 353.4 | -72.5 |
| Midpoint | 33.4, -96.2 | 19.1°C | 18.1°C | 993.7 mb | 564.6 m | 44.0 mm | 357.8 | -59.5 |
| 63% | 33.3, -96.3 | 19.1°C | 18.1°C | 993.7 mb | 564.6 m | 44.0 mm | 357.8 | -59.5 |
| 75% | 33.3, -96.3 | 18.9°C | 17.4°C | 998.8 mb | 486.3 m | 40.6 mm | 351.6 | -54.9 |
| 88% | 33.2, -96.4 | 18.9°C | 17.4°C | 998.8 mb | 486.3 m | 40.6 mm | 351.6 | -54.9 |
| 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