Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
54 mi (86 km)
Bearing
113.2°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
164.6
dB
Gaseous (O₂+H₂O)
5.2
dB
Diffraction loss
107.7
dB
TOTAL PATH LOSS
277.5
dB
Gas rate: 0.0606 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 6.9 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)
-277.5
dB
RX Ant Gain
30.0
dBi
RX Power
-199.5
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-59.5
dB
Path Weather Avg
Temperature
81.2°F
27.3°C
Dewpoint
43.2°F
6.2°C
T/Td Gap
38.0°F
Abs Humidity
6.9 g/m³
Pressure
986.4 mb
PWAT
13.6 mm
BL Depth
2275.2 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
89
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 | 33.5, -97.3 | 26.3°C | 8.5°C | 986.4 mb | 2119.6 m | 13.6 mm | ||
| 13% | 33.5, -97.2 | 26.3°C | 8.5°C | 986.4 mb | 2119.6 m | 13.6 mm | ||
| 25% | 33.4, -97.1 | 27.3°C | 8.1°C | 993.0 mb | 2239.7 m | 13.9 mm | ||
| 38% | 33.4, -97.0 | 26.8°C | 7.4°C | 992.3 mb | 2228.2 m | 13.2 mm | ||
| Midpoint | 33.3, -96.9 | 27.6°C | 5.2°C | 993.6 mb | 2274.0 m | 12.7 mm | ||
| 63% | 33.3, -96.8 | 28.1°C | 4.7°C | 992.1 mb | 2338.5 m | 14.1 mm | ||
| 75% | 33.3, -96.7 | 27.8°C | 5.4°C | 994.2 mb | 2397.3 m | 14.6 mm | ||
| 88% | 33.2, -96.6 | 27.8°C | 4.1°C | 995.4 mb | 2379.9 m | 13.3 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 23:00 UTC
Worst:
65
at 12:00 UTC