Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
66 mi (107 km)
Bearing
92.6°
Terrain
BLOCKED
Propagation
72/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
166.5
dB
Gaseous (O₂+H₂O)
6.5
dB
Diffraction loss
114.0
dB
TOTAL PATH LOSS
287.0
dB
Gas rate: 0.0610 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)
-287.0
dB
RX Ant Gain
30.0
dBi
RX Power
-209.0
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-69.0
dB
Path Weather Avg
Temperature
80.4°F
26.9°C
Dewpoint
43.7°F
6.5°C
T/Td Gap
36.7°F
Abs Humidity
7.0 g/m³
Pressure
984.9 mb
PWAT
14.5 mm
BL Depth
2300.0 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
88
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 | 33.2, -97.6 | 26.1°C | 6.8°C | 984.9 mb | 2316.1 m | 13.8 mm | ||
| 13% | 33.2, -97.5 | 26.1°C | 8.2°C | 985.2 mb | 2288.1 m | 15.2 mm | ||
| 25% | 33.2, -97.3 | 25.1°C | 9.7°C | 988.2 mb | 2268.4 m | 15.0 mm | ||
| 38% | 33.2, -97.2 | 26.7°C | 6.5°C | 993.2 mb | 2227.0 m | 13.2 mm | ||
| Midpoint | 33.2, -97.0 | 27.0°C | 6.4°C | 994.5 mb | 2280.0 m | 15.1 mm | ||
| 63% | 33.2, -96.9 | 27.7°C | 6.0°C | 995.5 mb | 2360.1 m | 15.5 mm | ||
| 75% | 33.2, -96.7 | 28.1°C | 5.7°C | 991.9 mb | 2354.5 m | 15.8 mm | ||
| 88% | 33.2, -96.6 | 27.6°C | 4.7°C | 994.3 mb | 2315.0 m | 13.5 mm | ||
| Destination | 33.2, -96.5 | 27.6°C | 4.8°C | 995.4 mb | 2290.7 m | 13.7 mm |
Midpoint vertical profile
18-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
79
at 22:00 UTC
Worst:
62
at 12:00 UTC