Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
30 mi (49 km)
Bearing
128.7°
Terrain
BLOCKED
Propagation
66/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
146.2
dB
Gaseous (O₂+H₂O)
0.3
dB
Diffraction loss
75.0
dB
TOTAL PATH LOSS
221.6
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 dB/km
Abs humidity avg: 6.2 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)
-221.6
dB
RX Ant Gain
30.0
dBi
RX Power
-143.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-3.6
dB
Path Weather Avg
Temperature
81.4°F
27.4°C
Dewpoint
40.5°F
4.7°C
T/Td Gap
40.8°F
Abs Humidity
6.2 g/m³
Pressure
990.1 mb
PWAT
12.9 mm
BL Depth
2286.6 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 | 33.5, -96.9 | 27.3°C | 5.4°C | 992.6 mb | 2120.7 m | 11.8 mm | ||
| 13% | 33.4, -96.8 | 26.8°C | 5.1°C | 990.1 mb | 2214.9 m | 12.3 mm | ||
| 25% | 33.4, -96.8 | 26.8°C | 5.1°C | 990.1 mb | 2214.9 m | 12.3 mm | ||
| 38% | 33.4, -96.7 | 26.8°C | 5.1°C | 990.1 mb | 2214.9 m | 12.3 mm | ||
| Midpoint | 33.3, -96.7 | 27.9°C | 4.2°C | 993.0 mb | 2277.3 m | 13.1 mm | ||
| 63% | 33.3, -96.6 | 27.8°C | 5.4°C | 994.2 mb | 2397.3 m | 14.6 mm | ||
| 75% | 33.3, -96.6 | 27.8°C | 4.1°C | 995.4 mb | 2379.9 m | 13.3 mm | ||
| 88% | 33.2, -96.5 | 27.8°C | 4.1°C | 995.4 mb | 2379.9 m | 13.3 mm | ||
| Destination | 33.2, -96.5 | 27.8°C | 4.1°C | 995.4 mb | 2379.9 m | 13.3 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 10 GHz
→ Steady
Best:
82
at 11:00 UTC
Worst:
72
at 22:00 UTC