Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
112 mi (180 km)
Bearing
93.2°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
171.0
dB
Gaseous (O₂+H₂O)
10.8
dB
Diffraction loss
134.3
dB
TOTAL PATH LOSS
316.2
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)
-316.2
dB
RX Ant Gain
30.0
dBi
RX Power
-238.2
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-98.2
dB
Path Weather Avg
Temperature
80.5°F
27.0°C
Dewpoint
42.6°F
5.9°C
T/Td Gap
37.9°F
Abs Humidity
6.7 g/m³
Pressure
970.9 mb
PWAT
13.2 mm
BL Depth
2307.0 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 | 33.2, -98.5 | 26.3°C | 4.7°C | 970.9 mb | 2223.1 m | 11.9 mm | ||
| 13% | 33.2, -98.3 | 26.9°C | 5.2°C | 978.1 mb | 2228.6 m | 12.2 mm | ||
| 25% | 33.2, -98.1 | 26.9°C | 5.5°C | 981.1 mb | 2268.8 m | 12.6 mm | ||
| 38% | 33.2, -97.8 | 27.3°C | 3.8°C | 984.9 mb | 2338.0 m | 11.1 mm | ||
| Midpoint | 33.2, -97.6 | 27.3°C | 7.3°C | 989.5 mb | 2445.7 m | 16.2 mm | ||
| 63% | 33.2, -97.3 | 25.2°C | 10.1°C | 989.3 mb | 2294.0 m | 15.1 mm | ||
| 75% | 33.1, -97.1 | 27.1°C | 6.3°C | 996.2 mb | 2253.7 m | 12.1 mm | ||
| 88% | 33.1, -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 23:00 UTC
Worst:
65
at 12:00 UTC