Path Calculator
Analyze microwave propagation between two points
Link Summary · 47 GHz
Distance
148 mi (239 km)
Bearing
88.1°
Terrain
BLOCKED
Propagation
73/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 47 GHz
FSPL (free-space)
173.4
dB
Gaseous (O₂+H₂O)
14.4
dB
Diffraction loss
146.1
dB
TOTAL PATH LOSS
334.0
dB
Gas rate: 0.0606 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)
-334.0
dB
RX Ant Gain
30.0
dBi
RX Power
-256.0
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-116.0
dB
Path Weather Avg
Temperature
80.2°F
26.8°C
Dewpoint
43.2°F
6.2°C
T/Td Gap
37.0°F
Abs Humidity
6.9 g/m³
Pressure
970.7 mb
PWAT
13.6 mm
BL Depth
2297.7 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 | 33.1, -99.2 | 26.3°C | 6.6°C | 970.7 mb | 2241.7 m | 13.8 mm | ||
| 13% | 33.1, -98.9 | 26.6°C | 6.0°C | 974.0 mb | 2242.8 m | 13.2 mm | ||
| 25% | 33.1, -98.5 | 26.8°C | 6.0°C | 974.4 mb | 2292.6 m | 13.8 mm | ||
| 38% | 33.1, -98.2 | 26.3°C | 6.5°C | 971.9 mb | 2225.5 m | 13.9 mm | ||
| Midpoint | 33.1, -97.9 | 27.3°C | 3.8°C | 984.9 mb | 2338.0 m | 11.1 mm | ||
| 63% | 33.1, -97.6 | 27.3°C | 7.3°C | 989.5 mb | 2445.7 m | 16.2 mm | ||
| 75% | 33.1, -97.3 | 24.9°C | 9.5°C | 990.9 mb | 2182.0 m | 12.8 mm | ||
| 88% | 33.1, -96.9 | 27.3°C | 6.2°C | 995.3 mb | 2332.9 m | 14.2 mm | ||
| Destination | 33.1, -96.6 | 28.2°C | 3.9°C | 994.1 mb | 2377.9 m | 13.9 mm |
Midpoint vertical profile
17-Hour Propagation Forecast · 47 GHz
→ Steady
Best:
81
at 21:00 UTC
Worst:
64
at 12:00 UTC