Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
133 mi (214 km)
Bearing
50.9°
Terrain
BLOCKED
Propagation
74/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
172.5
dB
Gaseous (O₂+H₂O)
12.5
dB
Diffraction loss
139.1
dB
TOTAL PATH LOSS
324.1
dB
Gas rate: 0.0586 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 6.2 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)
-324.1
dB
RX Ant Gain
30.0
dBi
RX Power
-246.1
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-106.1
dB
Path Weather Avg
Temperature
80.8°F
27.1°C
Dewpoint
40.5°F
4.7°C
T/Td Gap
40.3°F
Abs Humidity
6.2 g/m³
Pressure
969.3 mb
PWAT
13.2 mm
BL Depth
2271.8 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
94
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 | 32.0, -98.2 | 24.8°C | 5.2°C | 969.3 mb | 1964.9 m | 12.2 mm | ||
| 13% | 32.1, -98.0 | 25.8°C | 5.3°C | 975.2 mb | 2100.9 m | 12.7 mm | ||
| 25% | 32.3, -97.8 | 27.3°C | 4.7°C | 991.8 mb | 2271.2 m | 12.6 mm | ||
| 38% | 32.4, -97.6 | 26.6°C | 4.3°C | 984.0 mb | 2307.9 m | 12.6 mm | ||
| Midpoint | 32.6, -97.3 | 27.8°C | 4.2°C | 988.3 mb | 2426.0 m | 13.2 mm | ||
| 63% | 32.7, -97.1 | 28.5°C | 2.4°C | 996.2 mb | 2374.9 m | 11.6 mm | ||
| 75% | 32.9, -96.9 | 28.4°C | 3.6°C | 999.3 mb | 2334.7 m | 14.1 mm | ||
| 88% | 33.0, -96.7 | 26.9°C | 8.9°C | 997.3 mb | 2285.5 m | 16.9 mm | ||
| Destination | 33.2, -96.5 | 27.8°C | 4.1°C | 995.4 mb | 2379.9 m | 13.3 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
81
at 20:00 UTC
Worst:
63
at 12:00 UTC