Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
93 mi (149 km)
Bearing
154.5°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
169.4
dB
Gaseous (O₂+H₂O)
9.0
dB
Diffraction loss
126.2
dB
TOTAL PATH LOSS
304.5
dB
Gas rate: 0.0602 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 6.7 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)
-304.5
dB
RX Ant Gain
30.0
dBi
RX Power
-226.5
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-86.5
dB
Path Weather Avg
Temperature
81.8°F
27.6°C
Dewpoint
42.7°F
5.9°C
T/Td Gap
39.1°F
Abs Humidity
6.7 g/m³
Pressure
972.7 mb
PWAT
14.0 mm
BL Depth
2320.7 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
90
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 | 34.4, -97.1 | 26.3°C | 7.3°C | 972.7 mb | 2215.4 m | 13.6 mm | ||
| 13% | 34.3, -97.1 | 28.2°C | 6.3°C | 989.9 mb | 2372.0 m | 13.6 mm | ||
| 25% | 34.1, -97.0 | 28.1°C | 5.4°C | 985.1 mb | 2345.5 m | 12.9 mm | ||
| 38% | 33.9, -96.9 | 28.3°C | 7.0°C | 989.4 mb | 2462.5 m | 15.9 mm | ||
| Midpoint | 33.8, -96.8 | 27.9°C | 6.4°C | 992.8 mb | 2295.2 m | 14.3 mm | ||
| 63% | 33.6, -96.7 | 27.3°C | 6.7°C | 990.2 mb | 2245.2 m | 14.7 mm | ||
| 75% | 33.5, -96.6 | 27.3°C | 5.2°C | 987.4 mb | 2239.8 m | 13.8 mm | ||
| 88% | 33.3, -96.5 | 27.6°C | 5.0°C | 993.6 mb | 2330.6 m | 13.9 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:
78
at 20:00 UTC
Worst:
69
at 12:00 UTC