Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
94 mi (151 km)
Bearing
161.0°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
169.5
dB
Gaseous (O₂+H₂O)
9.1
dB
Diffraction loss
123.0
dB
TOTAL PATH LOSS
301.6
dB
Gas rate: 0.0604 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 6.8 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)
-301.6
dB
RX Ant Gain
30.0
dBi
RX Power
-223.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-83.6
dB
Path Weather Avg
Temperature
81.4°F
27.5°C
Dewpoint
42.9°F
6.1°C
T/Td Gap
38.5°F
Abs Humidity
6.8 g/m³
Pressure
972.7 mb
PWAT
13.8 mm
BL Depth
2301.0 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 | 34.4, -97.1 | 26.3°C | 7.3°C | 972.7 mb | 2215.4 m | 13.6 mm | ||
| 13% | 34.2, -97.1 | 27.1°C | 7.0°C | 986.9 mb | 2332.5 m | 13.2 mm | ||
| 25% | 34.1, -97.0 | 28.1°C | 5.4°C | 985.1 mb | 2345.5 m | 12.9 mm | ||
| 38% | 33.9, -96.9 | 28.1°C | 6.8°C | 991.4 mb | 2365.0 m | 15.8 mm | ||
| Midpoint | 33.8, -96.9 | 27.1°C | 6.7°C | 990.1 mb | 2239.4 m | 13.8 mm | ||
| 63% | 33.6, -96.8 | 27.4°C | 6.2°C | 988.7 mb | 2225.4 m | 13.4 mm | ||
| 75% | 33.4, -96.7 | 27.1°C | 5.9°C | 990.2 mb | 2210.9 m | 12.9 mm | ||
| 88% | 33.3, -96.7 | 27.8°C | 5.4°C | 994.2 mb | 2397.3 m | 14.6 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:
79
at 21:00 UTC
Worst:
68
at 12:00 UTC