Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
199 mi (320 km)
Bearing
242.3°
Terrain
BLOCKED
Propagation
72/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
176.0
dB
Gaseous (O₂+H₂O)
20.4
dB
Diffraction loss
154.5
dB
TOTAL PATH LOSS
350.8
dB
Gas rate: 0.0636 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 7.9 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)
-350.8
dB
RX Ant Gain
30.0
dBi
RX Power
-272.8
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-132.8
dB
Path Weather Avg
Temperature
80.0°F
26.7°C
Dewpoint
46.8°F
8.2°C
T/Td Gap
33.2°F
Abs Humidity
7.9 g/m³
Pressure
983.9 mb
PWAT
16.1 mm
BL Depth
2129.5 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
83
Pressure
82
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 | 34.6, -93.4 | 26.2°C | 8.2°C | 994.5 mb | 1911.0 m | 15.9 mm | ||
| 13% | 34.4, -93.8 | 24.4°C | 9.7°C | 983.9 mb | 1668.8 m | 15.2 mm | ||
| 25% | 34.2, -94.2 | 24.8°C | 10.9°C | 987.0 mb | 1771.0 m | 16.3 mm | ||
| 38% | 34.0, -94.5 | 26.3°C | 10.7°C | 1001.8 mb | 2173.1 m | 17.7 mm | ||
| Midpoint | 33.9, -94.9 | 27.4°C | 8.5°C | 1000.5 mb | 2263.7 m | 16.9 mm | ||
| 63% | 33.7, -95.3 | 27.3°C | 7.9°C | 998.2 mb | 2306.6 m | 15.8 mm | ||
| 75% | 33.5, -95.7 | 28.3°C | 6.4°C | 999.0 mb | 2367.1 m | 17.2 mm | ||
| 88% | 33.4, -96.1 | 27.4°C | 7.4°C | 994.0 mb | 2324.4 m | 16.7 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 10:00 UTC
Worst:
69
at 07:00 UTC