Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
99 mi (160 km)
Bearing
48.2°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
169.9
dB
Gaseous (O₂+H₂O)
9.7
dB
Diffraction loss
125.5
dB
TOTAL PATH LOSS
305.2
dB
Gas rate: 0.0609 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.0 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)
-305.2
dB
RX Ant Gain
30.0
dBi
RX Power
-227.2
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-87.2
dB
Path Weather Avg
Temperature
80.9°F
27.2°C
Dewpoint
43.6°F
6.4°C
T/Td Gap
37.3°F
Abs Humidity
7.0 g/m³
Pressure
978.7 mb
PWAT
15.3 mm
BL Depth
2333.9 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
89
Pressure
88
PWAT
80
Season
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 | 32.2, -97.9 | 25.2°C | 7.2°C | 978.7 mb | 2024.2 m | 13.8 mm | ||
| 13% | 32.3, -97.7 | 27.2°C | 5.9°C | 991.4 mb | 2258.3 m | 14.0 mm | ||
| 25% | 32.4, -97.6 | 27.3°C | 5.7°C | 989.4 mb | 2280.4 m | 13.5 mm | ||
| 38% | 32.5, -97.4 | 27.1°C | 6.2°C | 987.4 mb | 2337.1 m | 14.3 mm | ||
| Midpoint | 32.6, -97.3 | 25.5°C | 8.7°C | 994.6 mb | 2410.0 m | 15.6 mm | ||
| 63% | 32.8, -97.1 | 28.4°C | 5.8°C | 995.9 mb | 2418.1 m | 15.3 mm | ||
| 75% | 32.9, -96.9 | 28.3°C | 5.8°C | 999.3 mb | 2376.2 m | 16.3 mm | ||
| 88% | 33.0, -96.8 | 27.2°C | 6.3°C | 993.3 mb | 2401.0 m | 17.5 mm | ||
| Destination | 33.1, -96.6 | 28.4°C | 6.3°C | 993.9 mb | 2499.5 m | 17.5 mm |
Midpoint vertical profile
18-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
78
at 23:00 UTC
Worst:
62
at 11:00 UTC