Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
103 mi (166 km)
Bearing
111.3°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
170.3
dB
Gaseous (O₂+H₂O)
10.1
dB
Diffraction loss
135.4
dB
TOTAL PATH LOSS
315.7
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)
-315.7
dB
RX Ant Gain
30.0
dBi
RX Power
-237.7
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-97.7
dB
Path Weather Avg
Temperature
80.4°F
26.9°C
Dewpoint
43.2°F
6.2°C
T/Td Gap
37.1°F
Abs Humidity
6.9 g/m³
Pressure
977.1 mb
PWAT
13.0 mm
BL Depth
2267.5 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 | 33.7, -98.1 | 27.3°C | 4.7°C | 982.9 mb | 2360.9 m | 12.1 mm | ||
| 13% | 33.7, -97.9 | 26.5°C | 5.0°C | 979.1 mb | 2279.7 m | 11.9 mm | ||
| 25% | 33.6, -97.7 | 25.6°C | 7.0°C | 977.1 mb | 2298.9 m | 13.2 mm | ||
| 38% | 33.5, -97.5 | 25.4°C | 8.0°C | 982.7 mb | 2057.4 m | 12.1 mm | ||
| Midpoint | 33.5, -97.3 | 26.3°C | 8.5°C | 986.4 mb | 2119.6 m | 13.6 mm | ||
| 63% | 33.4, -97.1 | 27.3°C | 8.1°C | 993.0 mb | 2239.7 m | 13.9 mm | ||
| 75% | 33.3, -96.9 | 27.6°C | 5.2°C | 993.6 mb | 2274.0 m | 12.7 mm | ||
| 88% | 33.3, -96.7 | 27.8°C | 5.4°C | 994.2 mb | 2397.3 m | 14.6 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 22:00 UTC
Worst:
65
at 12:00 UTC