Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
98 mi (158 km)
Bearing
107.5°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
169.8
dB
Gaseous (O₂+H₂O)
9.7
dB
Diffraction loss
129.6
dB
TOTAL PATH LOSS
309.1
dB
Gas rate: 0.0614 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.1 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)
-309.1
dB
RX Ant Gain
30.0
dBi
RX Power
-231.1
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-91.1
dB
Path Weather Avg
Temperature
79.9°F
26.6°C
Dewpoint
44.1°F
6.7°C
T/Td Gap
35.8°F
Abs Humidity
7.1 g/m³
Pressure
977.0 mb
PWAT
14.5 mm
BL Depth
2261.6 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Pressure
88
Humidity
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 | 33.6, -98.2 | 27.2°C | 3.5°C | 977.0 mb | 2287.1 m | 11.3 mm | ||
| 13% | 33.5, -98.0 | 27.1°C | 4.6°C | 979.2 mb | 2266.6 m | 12.0 mm | ||
| 25% | 33.4, -97.8 | 27.1°C | 5.0°C | 979.9 mb | 2290.1 m | 13.0 mm | ||
| 38% | 33.4, -97.6 | 24.7°C | 8.2°C | 978.5 mb | 2210.2 m | 14.3 mm | ||
| Midpoint | 33.3, -97.4 | 24.7°C | 9.8°C | 983.6 mb | 2071.5 m | 15.0 mm | ||
| 63% | 33.3, -97.2 | 26.1°C | 9.3°C | 991.9 mb | 2156.4 m | 16.6 mm | ||
| 75% | 33.2, -97.0 | 27.0°C | 6.4°C | 994.5 mb | 2280.0 m | 15.1 mm | ||
| 88% | 33.2, -96.8 | 27.2°C | 7.6°C | 995.3 mb | 2293.1 m | 16.3 mm | ||
| Destination | 33.1, -96.6 | 28.4°C | 6.3°C | 993.9 mb | 2499.5 m | 17.5 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
79
at 20:00 UTC
Worst:
64
at 12:00 UTC