Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
209 mi (337 km)
Bearing
242.4°
Terrain
BLOCKED
Propagation
72/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
176.4
dB
Gaseous (O₂+H₂O)
21.4
dB
Diffraction loss
156.8
dB
TOTAL PATH LOSS
354.7
dB
Gas rate: 0.0634 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.8 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)
-354.7
dB
RX Ant Gain
30.0
dBi
RX Power
-276.7
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-136.7
dB
Path Weather Avg
Temperature
80.2°F
26.8°C
Dewpoint
46.6°F
8.1°C
T/Td Gap
33.6°F
Abs Humidity
7.8 g/m³
Pressure
983.9 mb
PWAT
15.9 mm
BL Depth
2123.3 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
83
Pressure
82
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 | 34.6, -93.4 | 26.2°C | 8.2°C | 994.5 mb | 1911.0 m | 15.9 mm | ||
| 13% | 34.4, -93.8 | 24.4°C | 9.7°C | 983.9 mb | 1668.8 m | 15.2 mm | ||
| 25% | 34.2, -94.2 | 25.2°C | 11.5°C | 991.8 mb | 1799.0 m | 16.4 mm | ||
| 38% | 34.0, -94.6 | 26.8°C | 9.7°C | 1002.6 mb | 2178.6 m | 17.4 mm | ||
| Midpoint | 33.8, -95.0 | 27.6°C | 8.3°C | 1002.5 mb | 2402.7 m | 16.8 mm | ||
| 63% | 33.7, -95.4 | 28.0°C | 6.9°C | 997.3 mb | 2340.2 m | 15.4 mm | ||
| 75% | 33.5, -95.8 | 27.6°C | 7.7°C | 996.3 mb | 2283.3 m | 17.3 mm | ||
| 88% | 33.3, -96.2 | 26.8°C | 7.0°C | 993.0 mb | 2148.0 m | 14.8 mm | ||
| Destination | 33.1, -96.6 | 28.2°C | 3.9°C | 994.1 mb | 2377.9 m | 13.9 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
77
at 01:00 UTC
Worst:
67
at 07:00 UTC