Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
143 mi (231 km)
Bearing
221.7°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
173.1
dB
Gaseous (O₂+H₂O)
14.5
dB
Diffraction loss
135.6
dB
TOTAL PATH LOSS
323.3
dB
Gas rate: 0.0629 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.6 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)
-323.3
dB
RX Ant Gain
30.0
dBi
RX Power
-245.3
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-105.3
dB
Path Weather Avg
Temperature
80.4°F
26.9°C
Dewpoint
46.0°F
7.8°C
T/Td Gap
34.4°F
Abs Humidity
7.6 g/m³
Pressure
964.7 mb
PWAT
15.1 mm
BL Depth
2228.2 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Pressure
88
Humidity
84
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 | 34.7, -94.8 | 24.2°C | 10.2°C | 964.7 mb | 1597.9 m | 13.8 mm | ||
| 13% | 34.6, -95.0 | 24.8°C | 10.8°C | 971.1 mb | 1939.3 m | 15.2 mm | ||
| 25% | 34.4, -95.2 | 25.9°C | 9.2°C | 979.9 mb | 2233.7 m | 15.3 mm | ||
| 38% | 34.2, -95.4 | 27.4°C | 8.3°C | 996.2 mb | 2357.5 m | 15.6 mm | ||
| Midpoint | 34.0, -95.6 | 27.9°C | 8.0°C | 995.6 mb | 2340.4 m | 15.3 mm | ||
| 63% | 33.8, -95.8 | 28.2°C | 7.4°C | 995.6 mb | 2386.7 m | 16.4 mm | ||
| 75% | 33.6, -96.0 | 27.2°C | 7.0°C | 994.9 mb | 2326.5 m | 14.9 mm | ||
| 88% | 33.4, -96.2 | 28.4°C | 4.9°C | 991.2 mb | 2492.0 m | 16.1 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:
79
at 22:00 UTC
Worst:
70
at 04:00 UTC