Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
19 mi (31 km)
Bearing
191.8°
Terrain
BLOCKED
Propagation
72/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
155.7
dB
Gaseous (O₂+H₂O)
1.8
dB
Diffraction loss
26.2
dB
TOTAL PATH LOSS
183.7
dB
Gas rate: 0.0584 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 6.2 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)
-183.7
dB
RX Ant Gain
30.0
dBi
RX Power
-105.7
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
34.3
dB
Path Weather Avg
Temperature
82.8°F
28.2°C
Dewpoint
40.6°F
4.8°C
T/Td Gap
42.2°F
Abs Humidity
6.2 g/m³
Pressure
990.2 mb
PWAT
14.8 mm
BL Depth
2402.0 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
94
PWAT
80
Pressure
70
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, -96.4 | 27.8°C | 5.0°C | 990.2 mb | 2305.0 m | 14.2 mm | ||
| 13% | 33.4, -96.4 | 28.4°C | 4.4°C | 992.2 mb | 2434.7 m | 15.3 mm | ||
| 25% | 33.4, -96.4 | 28.4°C | 4.4°C | 992.2 mb | 2434.7 m | 15.3 mm | ||
| 38% | 33.4, -96.4 | 28.4°C | 4.4°C | 992.2 mb | 2434.7 m | 15.3 mm | ||
| Midpoint | 33.3, -96.4 | 28.4°C | 4.4°C | 992.2 mb | 2434.7 m | 15.3 mm | ||
| 63% | 33.3, -96.4 | 28.5°C | 6.0°C | 997.2 mb | 2407.3 m | 15.6 mm | ||
| 75% | 33.3, -96.4 | 28.5°C | 6.0°C | 997.2 mb | 2407.3 m | 15.6 mm | ||
| 88% | 33.2, -96.4 | 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 21:00 UTC
Worst:
65
at 12:00 UTC