Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
62 mi (100 km)
Bearing
155.6°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
165.9
dB
Gaseous (O₂+H₂O)
6.0
dB
Diffraction loss
112.2
dB
TOTAL PATH LOSS
284.1
dB
Gas rate: 0.0601 dB/km
H₂O: 0.0030 dB/km/g ·
O₂: 0.0400 dB/km
Abs humidity avg: 6.7 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)
-284.1
dB
RX Ant Gain
30.0
dBi
RX Power
-206.1
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-66.1
dB
Path Weather Avg
Temperature
81.1°F
27.3°C
Dewpoint
42.7°F
5.9°C
T/Td Gap
38.4°F
Abs Humidity
6.7 g/m³
Pressure
985.1 mb
PWAT
14.3 mm
BL Depth
2261.5 m
Refrac Gradient
0 N/km
Propagation Factors · 47 GHz
Rain
100
T-Td Depression
96
Humidity
90
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 22:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 33.9, -97.1 | 28.1°C | 6.1°C | 988.9 mb | 2325.9 m | 15.5 mm | ||
| 13% | 33.8, -97.0 | 27.5°C | 6.2°C | 990.1 mb | 2254.5 m | 13.7 mm | ||
| 25% | 33.7, -96.9 | 26.6°C | 5.4°C | 985.1 mb | 2076.4 m | 11.7 mm | ||
| 38% | 33.6, -96.9 | 27.0°C | 3.4°C | 987.4 mb | 2047.6 m | 10.7 mm | ||
| Midpoint | 33.5, -96.8 | 27.1°C | 5.9°C | 991.0 mb | 2150.7 m | 13.0 mm | ||
| 63% | 33.4, -96.8 | 26.7°C | 6.8°C | 988.4 mb | 2250.8 m | 15.3 mm | ||
| 75% | 33.3, -96.7 | 26.7°C | 6.8°C | 988.4 mb | 2250.8 m | 15.3 mm | ||
| 88% | 33.2, -96.7 | 28.1°C | 6.5°C | 992.5 mb | 2687.2 m | 17.3 mm | ||
| Destination | 33.1, -96.6 | 27.5°C | 6.4°C | 992.5 mb | 2309.8 m | 16.0 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
81
at 02:00 UTC
Worst:
64
at 14:00 UTC