Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
73 mi (118 km)
Bearing
304.3°
Terrain
BLOCKED
Propagation
72/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
153.9
dB
Gaseous (O₂+H₂O)
0.8
dB
Diffraction loss
94.9
dB
TOTAL PATH LOSS
249.6
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 15.3 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)
-249.6
dB
RX Ant Gain
30.0
dBi
RX Power
-171.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-31.6
dB
Path Weather Avg
Temperature
71.7°F
22.1°C
Dewpoint
64.6°F
18.1°C
T/Td Gap
7.1°F
Abs Humidity
15.3 g/m³
Pressure
995.0 mb
PWAT
39.4 mm
BL Depth
484.5 m
Refrac Gradient
-92.4 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
95
T-Td Depression
75
Pressure
70
PWAT
70
Refractivity
68
Season
68
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, -95.6 | 26.3°C | 19.6°C | 997.3 mb | 567.3 m | 38.1 mm | 356.5 | -70.4 |
| 13% | 32.6, -95.7 | 25.8°C | 18.3°C | 999.5 mb | 591.2 m | 38.3 mm | 349.5 | -56.9 |
| 25% | 32.7, -95.8 | 24.9°C | 18.4°C | 996.6 mb | 516.5 m | 39.7 mm | 351.7 | -59.1 |
| 38% | 32.7, -96.0 | 22.8°C | 18.2°C | 999.5 mb | 447.0 m | 39.3 mm | 351.2 | -92.4 |
| Midpoint | 32.8, -96.1 | 21.6°C | 18.0°C | 999.0 mb | 472.2 m | 38.3 mm | 350.1 | -73.3 |
| 63% | 32.9, -96.2 | 20.3°C | 17.7°C | 999.3 mb | 491.2 m | 39.3 mm | 350.9 | -54.1 |
| 75% | 33.0, -96.4 | 18.7°C | 17.4°C | 996.5 mb | 385.7 m | 41.0 mm | 352.3 | -63.4 |
| 88% | 33.0, -96.5 | 18.9°C | 17.7°C | 999.8 mb | 433.5 m | 40.5 mm | 353.6 | -67.9 |
| Destination | 33.1, -96.6 | 19.4°C | 17.8°C | 995.0 mb | 456.2 m | 40.3 mm | 354.2 | -62.2 |
Midpoint vertical profile
17-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
72
at 12:00 UTC
Worst:
60
at 03:00 UTC