Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
98 mi (158 km)
Bearing
63.3°
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
126.7
dB
TOTAL PATH LOSS
306.2
dB
Gas rate: 0.0612 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)
-306.2
dB
RX Ant Gain
30.0
dBi
RX Power
-228.2
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-88.2
dB
Path Weather Avg
Temperature
80.9°F
27.2°C
Dewpoint
43.9°F
6.6°C
T/Td Gap
37.1°F
Abs Humidity
7.0 g/m³
Pressure
979.9 mb
PWAT
15.4 mm
BL Depth
2366.6 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Pressure
88
Humidity
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 | 32.5, -98.1 | 26.8°C | 6.6°C | 979.9 mb | 2251.0 m | 14.5 mm | ||
| 13% | 32.6, -97.9 | 27.4°C | 6.3°C | 987.6 mb | 2292.4 m | 14.2 mm | ||
| 25% | 32.6, -97.8 | 27.2°C | 5.5°C | 983.0 mb | 2326.3 m | 14.1 mm | ||
| 38% | 32.7, -97.6 | 25.2°C | 6.5°C | 980.6 mb | 2310.6 m | 13.7 mm | ||
| Midpoint | 32.8, -97.4 | 26.6°C | 7.7°C | 996.2 mb | 2363.9 m | 13.2 mm | ||
| 63% | 32.9, -97.2 | 27.4°C | 6.7°C | 995.6 mb | 2347.8 m | 15.1 mm | ||
| 75% | 33.0, -97.0 | 28.4°C | 7.7°C | 998.3 mb | 2507.4 m | 19.1 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:
79
at 21:00 UTC
Worst:
62
at 11:00 UTC