Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
150 mi (242 km)
Bearing
94.9°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
173.5
dB
Gaseous (O₂+H₂O)
14.7
dB
Diffraction loss
145.7
dB
TOTAL PATH LOSS
334.0
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)
-334.0
dB
RX Ant Gain
30.0
dBi
RX Power
-256.0
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-116.0
dB
Path Weather Avg
Temperature
79.7°F
26.5°C
Dewpoint
43.3°F
6.3°C
T/Td Gap
36.3°F
Abs Humidity
6.9 g/m³
Pressure
965.2 mb
PWAT
13.3 mm
BL Depth
2289.8 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, -99.2 | 26.2°C | 5.2°C | 965.2 mb | 2258.0 m | 12.6 mm | ||
| 13% | 33.3, -98.9 | 26.9°C | 5.5°C | 974.5 mb | 2275.4 m | 13.2 mm | ||
| 25% | 33.3, -98.6 | 26.3°C | 4.7°C | 970.9 mb | 2223.1 m | 11.9 mm | ||
| 38% | 33.3, -98.2 | 26.9°C | 5.2°C | 978.1 mb | 2228.6 m | 12.2 mm | ||
| Midpoint | 33.2, -97.9 | 28.3°C | 5.6°C | 985.9 mb | 2402.8 m | 15.2 mm | ||
| 63% | 33.2, -97.6 | 26.1°C | 6.5°C | 985.1 mb | 2315.1 m | 12.9 mm | ||
| 75% | 33.2, -97.3 | 24.9°C | 9.5°C | 990.9 mb | 2182.0 m | 12.8 mm | ||
| 88% | 33.1, -96.9 | 24.4°C | 10.4°C | 997.5 mb | 2345.3 m | 15.1 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:
81
at 20:00 UTC
Worst:
65
at 11:00 UTC