Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
14 mi (22 km)
Bearing
278.3°
Terrain
BLOCKED
Propagation
52/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
152.8
dB
Gaseous (O₂+H₂O)
1.9
dB
Diffraction loss
84.2
dB
TOTAL PATH LOSS
238.9
dB
Gas rate: 0.0845 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 14.9 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)
-238.9
dB
RX Ant Gain
30.0
dBi
RX Power
-160.9
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-20.9
dB
Path Weather Avg
Temperature
65.9°F
18.8°C
Dewpoint
63.7°F
17.6°C
T/Td Gap
2.2°F
Abs Humidity
14.9 g/m³
Pressure
996.8 mb
PWAT
39.7 mm
BL Depth
431.8 m
Refrac Gradient
-69.8 N/km
Propagation Factors · 47 GHz
Rain
100
Pressure
70
Refractivity
55
Season
55
Sky Cover
50
Wind
50
PWAT
35
Humidity
31
T-Td Depression
18
Time of Day
18
Atmospheric Profile
HRRR (3 km) Valid 2026-05-10 21:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 33.2, -96.2 | 18.4°C | 17.4°C | 996.8 mb | 348.7 m | 39.6 mm | 351.5 | -69.8 |
| 13% | 33.2, -96.2 | 18.4°C | 17.4°C | 996.8 mb | 348.7 m | 39.6 mm | 351.5 | -69.8 |
| 25% | 33.2, -96.3 | 18.4°C | 17.4°C | 996.8 mb | 348.7 m | 39.6 mm | 351.5 | -69.8 |
| 38% | 33.2, -96.3 | 18.4°C | 17.4°C | 996.8 mb | 348.7 m | 39.6 mm | 351.5 | -69.8 |
| Midpoint | 33.2, -96.3 | 18.9°C | 17.7°C | 997.6 mb | 472.8 m | 39.3 mm | 354.1 | -63.8 |
| 63% | 33.2, -96.4 | 18.9°C | 17.7°C | 997.6 mb | 472.8 m | 39.3 mm | 354.1 | -63.8 |
| 75% | 33.2, -96.4 | 18.9°C | 17.7°C | 997.6 mb | 472.8 m | 39.3 mm | 354.1 | -63.8 |
| 88% | 33.2, -96.4 | 18.9°C | 17.7°C | 997.6 mb | 472.8 m | 39.3 mm | 354.1 | -63.8 |
| Destination | 33.2, -96.5 | 20.1°C | 17.9°C | 997.2 mb | 600.2 m | 41.5 mm | 353.7 | -58.9 |
Midpoint vertical profile
17-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
61
at 13:00 UTC
Worst:
38
at 21:00 UTC