Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
211 mi (340 km)
Bearing
230.2°
Terrain
BLOCKED
Propagation
72/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
176.5
dB
Gaseous (O₂+H₂O)
21.6
dB
Diffraction loss
154.8
dB
TOTAL PATH LOSS
352.9
dB
Gas rate: 0.0636 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.9 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)
-352.9
dB
RX Ant Gain
30.0
dBi
RX Power
-274.9
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-134.9
dB
Path Weather Avg
Temperature
79.9°F
26.6°C
Dewpoint
46.7°F
8.2°C
T/Td Gap
33.1°F
Abs Humidity
7.9 g/m³
Pressure
976.1 mb
PWAT
15.5 mm
BL Depth
2117.6 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Pressure
88
Humidity
83
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 | 35.2, -93.6 | 26.6°C | 9.4°C | 999.2 mb | 2119.4 m | 16.9 mm | ||
| 13% | 34.9, -94.0 | 24.8°C | 10.0°C | 980.7 mb | 1872.5 m | 15.7 mm | ||
| 25% | 34.7, -94.3 | 24.1°C | 11.4°C | 976.1 mb | 1426.3 m | 15.1 mm | ||
| 38% | 34.4, -94.7 | 24.8°C | 11.2°C | 985.5 mb | 1760.2 m | 14.7 mm | ||
| Midpoint | 34.2, -95.0 | 27.4°C | 7.8°C | 994.3 mb | 2335.0 m | 14.9 mm | ||
| 63% | 33.9, -95.4 | 28.6°C | 6.7°C | 1001.2 mb | 2463.7 m | 16.8 mm | ||
| 75% | 33.7, -95.8 | 27.8°C | 5.7°C | 994.5 mb | 2376.5 m | 15.7 mm | ||
| 88% | 33.4, -96.1 | 27.4°C | 7.4°C | 994.0 mb | 2324.4 m | 16.7 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 · 47 GHz
→ Steady
Best:
79
at 20:00 UTC
Worst:
68
at 07:00 UTC