Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
147 mi (237 km)
Bearing
91.8°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
173.4
dB
Gaseous (O₂+H₂O)
14.3
dB
Diffraction loss
146.4
dB
TOTAL PATH LOSS
334.1
dB
Gas rate: 0.0607 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 6.9 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)
-334.1
dB
RX Ant Gain
30.0
dBi
RX Power
-256.1
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-116.1
dB
Path Weather Avg
Temperature
80.3°F
26.8°C
Dewpoint
43.3°F
6.3°C
T/Td Gap
37.0°F
Abs Humidity
6.9 g/m³
Pressure
971.9 mb
PWAT
13.4 mm
BL Depth
2284.8 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
89
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 | 33.3, -99.0 | 26.6°C | 6.4°C | 974.9 mb | 2250.2 m | 13.4 mm | ||
| 13% | 33.3, -98.7 | 26.8°C | 6.4°C | 974.8 mb | 2275.5 m | 13.6 mm | ||
| 25% | 33.3, -98.4 | 26.6°C | 4.7°C | 971.9 mb | 2214.0 m | 11.9 mm | ||
| 38% | 33.2, -98.0 | 27.0°C | 6.0°C | 982.6 mb | 2292.2 m | 13.4 mm | ||
| Midpoint | 33.2, -97.7 | 26.9°C | 6.7°C | 986.3 mb | 2366.4 m | 14.1 mm | ||
| 63% | 33.2, -97.4 | 25.0°C | 9.7°C | 988.2 mb | 2217.7 m | 13.8 mm | ||
| 75% | 33.2, -97.1 | 26.7°C | 7.8°C | 993.3 mb | 2228.5 m | 13.2 mm | ||
| 88% | 33.2, -96.8 | 28.1°C | 4.7°C | 992.1 mb | 2338.5 m | 14.1 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:
80
at 22:00 UTC
Worst:
65
at 12:00 UTC