Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
138 mi (222 km)
Bearing
94.0°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
172.8
dB
Gaseous (O₂+H₂O)
13.5
dB
Diffraction loss
143.7
dB
TOTAL PATH LOSS
330.0
dB
Gas rate: 0.0607 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)
-330.0
dB
RX Ant Gain
30.0
dBi
RX Power
-252.0
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-112.0
dB
Path Weather Avg
Temperature
79.9°F
26.6°C
Dewpoint
43.3°F
6.3°C
T/Td Gap
36.5°F
Abs Humidity
6.9 g/m³
Pressure
971.9 mb
PWAT
13.2 mm
BL Depth
2280.1 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
89
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 | 33.3, -99.0 | 26.6°C | 6.4°C | 974.9 mb | 2250.2 m | 13.4 mm | ||
| 13% | 33.3, -98.7 | 26.6°C | 5.5°C | 974.2 mb | 2233.7 m | 12.7 mm | ||
| 25% | 33.2, -98.4 | 26.6°C | 4.7°C | 971.9 mb | 2214.0 m | 11.9 mm | ||
| 38% | 33.2, -98.1 | 26.9°C | 5.5°C | 981.1 mb | 2268.8 m | 12.6 mm | ||
| Midpoint | 33.2, -97.8 | 26.9°C | 6.7°C | 986.3 mb | 2366.4 m | 14.1 mm | ||
| 63% | 33.2, -97.5 | 25.2°C | 8.2°C | 983.8 mb | 2295.4 m | 13.2 mm | ||
| 75% | 33.2, -97.2 | 24.9°C | 9.5°C | 990.9 mb | 2182.0 m | 12.8 mm | ||
| 88% | 33.1, -96.9 | 27.3°C | 6.2°C | 995.3 mb | 2332.9 m | 14.2 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:
80
at 22:00 UTC
Worst:
65
at 12:00 UTC