Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
64 mi (103 km)
Bearing
122.2°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
166.1
dB
Gaseous (O₂+H₂O)
6.3
dB
Diffraction loss
112.0
dB
TOTAL PATH LOSS
284.4
dB
Gas rate: 0.0609 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)
-284.4
dB
RX Ant Gain
30.0
dBi
RX Power
-206.4
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-66.4
dB
Path Weather Avg
Temperature
80.9°F
27.2°C
Dewpoint
43.6°F
6.5°C
T/Td Gap
37.3°F
Abs Humidity
7.0 g/m³
Pressure
981.1 mb
PWAT
14.1 mm
BL Depth
2231.7 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 | 33.7, -97.4 | 26.3°C | 8.9°C | 981.1 mb | 2101.0 m | 14.5 mm | ||
| 13% | 33.6, -97.3 | 26.6°C | 8.1°C | 987.2 mb | 2091.7 m | 14.5 mm | ||
| 25% | 33.6, -97.2 | 27.1°C | 7.9°C | 992.6 mb | 2235.0 m | 14.7 mm | ||
| 38% | 33.5, -97.0 | 27.3°C | 7.0°C | 991.6 mb | 2251.0 m | 14.2 mm | ||
| Midpoint | 33.4, -96.9 | 27.6°C | 5.9°C | 993.6 mb | 2289.9 m | 14.3 mm | ||
| 63% | 33.4, -96.8 | 26.7°C | 6.0°C | 990.1 mb | 2235.9 m | 13.8 mm | ||
| 75% | 33.3, -96.7 | 27.9°C | 4.9°C | 993.0 mb | 2275.5 m | 14.2 mm | ||
| 88% | 33.3, -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:
65
at 13:00 UTC