Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
115 mi (185 km)
Bearing
104.0°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
171.2
dB
Gaseous (O₂+H₂O)
11.1
dB
Diffraction loss
137.8
dB
TOTAL PATH LOSS
320.1
dB
Gas rate: 0.0601 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 6.7 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)
-320.1
dB
RX Ant Gain
30.0
dBi
RX Power
-242.1
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-102.1
dB
Path Weather Avg
Temperature
80.1°F
26.7°C
Dewpoint
42.6°F
5.9°C
T/Td Gap
37.5°F
Abs Humidity
6.7 g/m³
Pressure
975.5 mb
PWAT
12.8 mm
BL Depth
2270.9 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
90
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 | 33.5, -98.5 | 27.8°C | 4.5°C | 975.5 mb | 2275.3 m | 12.8 mm | ||
| 13% | 33.5, -98.3 | 27.3°C | 3.0°C | 977.1 mb | 2284.3 m | 10.7 mm | ||
| 25% | 33.4, -98.1 | 26.9°C | 4.4°C | 979.1 mb | 2255.8 m | 11.1 mm | ||
| 38% | 33.4, -97.8 | 26.5°C | 5.2°C | 979.8 mb | 2261.7 m | 11.8 mm | ||
| Midpoint | 33.3, -97.6 | 24.8°C | 8.4°C | 978.6 mb | 2203.7 m | 13.9 mm | ||
| 63% | 33.3, -97.3 | 25.0°C | 9.7°C | 988.2 mb | 2217.7 m | 13.8 mm | ||
| 75% | 33.2, -97.1 | 26.7°C | 7.8°C | 993.3 mb | 2228.5 m | 13.2 mm | ||
| 88% | 33.2, -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 20:00 UTC
Worst:
64
at 12:00 UTC