Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
58 mi (93 km)
Bearing
97.8°
Terrain
BLOCKED
Propagation
72/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
165.2
dB
Gaseous (O₂+H₂O)
5.9
dB
Diffraction loss
103.5
dB
TOTAL PATH LOSS
274.6
dB
Gas rate: 0.0635 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.8 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)
-274.6
dB
RX Ant Gain
30.0
dBi
RX Power
-196.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-56.6
dB
Path Weather Avg
Temperature
79.5°F
26.4°C
Dewpoint
46.7°F
8.1°C
T/Td Gap
32.9°F
Abs Humidity
7.8 g/m³
Pressure
984.9 mb
PWAT
15.8 mm
BL Depth
2311.2 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
83
Pressure
82
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, -97.6 | 26.1°C | 6.8°C | 984.9 mb | 2316.1 m | 13.8 mm | ||
| 13% | 33.2, -97.5 | 26.1°C | 8.2°C | 985.2 mb | 2288.1 m | 15.2 mm | ||
| 25% | 33.2, -97.4 | 25.1°C | 9.7°C | 988.2 mb | 2268.4 m | 15.0 mm | ||
| 38% | 33.2, -97.2 | 26.1°C | 9.3°C | 991.9 mb | 2156.4 m | 16.6 mm | ||
| Midpoint | 33.2, -97.1 | 27.2°C | 7.8°C | 996.1 mb | 2300.4 m | 15.3 mm | ||
| 63% | 33.2, -97.0 | 24.6°C | 10.8°C | 997.5 mb | 2389.3 m | 16.5 mm | ||
| 75% | 33.1, -96.9 | 27.2°C | 7.6°C | 995.3 mb | 2293.1 m | 16.3 mm | ||
| 88% | 33.1, -96.7 | 27.0°C | 6.8°C | 992.1 mb | 2289.3 m | 16.2 mm | ||
| Destination | 33.1, -96.6 | 28.4°C | 6.3°C | 993.9 mb | 2499.5 m | 17.5 mm |
Midpoint vertical profile
18-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
79
at 20:00 UTC
Worst:
64
at 12:00 UTC