Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
68 mi (110 km)
Bearing
43.9°
Terrain
BLOCKED
Propagation
72/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
153.3
dB
Gaseous (O₂+H₂O)
0.8
dB
Diffraction loss
91.5
dB
TOTAL PATH LOSS
245.6
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 15.1 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)
-245.6
dB
RX Ant Gain
30.0
dBi
RX Power
-167.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-27.6
dB
Path Weather Avg
Temperature
70.8°F
21.5°C
Dewpoint
64.1°F
17.9°C
T/Td Gap
6.6°F
Abs Humidity
15.1 g/m³
Pressure
987.9 mb
PWAT
39.6 mm
BL Depth
507.5 m
Refrac Gradient
-73.4 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
95
Pressure
82
T-Td Depression
75
PWAT
70
Season
68
Refractivity
55
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 | 32.5, -97.3 | 24.1°C | 17.9°C | 987.9 mb | 463.3 m | 37.8 mm | 352.5 | -48.9 |
| 13% | 32.6, -97.2 | 22.1°C | 18.2°C | 993.3 mb | 526.4 m | 40.5 mm | 351.0 | -50.4 |
| 25% | 32.7, -97.1 | 22.1°C | 18.2°C | 993.3 mb | 526.4 m | 40.5 mm | 351.0 | -50.4 |
| 38% | 32.7, -97.0 | 23.7°C | 17.9°C | 999.8 mb | 656.0 m | 41.6 mm | 350.5 | -52.6 |
| Midpoint | 32.8, -96.9 | 22.3°C | 17.4°C | 999.1 mb | 491.9 m | 38.1 mm | 349.8 | -64.4 |
| 63% | 32.9, -96.8 | 20.7°C | 17.6°C | 998.3 mb | 433.5 m | 37.3 mm | 352.1 | -73.4 |
| 75% | 33.0, -96.7 | 19.7°C | 18.0°C | 998.0 mb | 438.2 m | 38.7 mm | 353.2 | -71.9 |
| 88% | 33.1, -96.6 | 18.9°C | 17.8°C | 998.4 mb | 431.7 m | 40.8 mm | 354.3 | -65.0 |
| 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:
73
at 13:00 UTC
Worst:
61
at 02:00 UTC