Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
47 mi (76 km)
Bearing
123.1°
Terrain
BLOCKED
Propagation
51/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
157.7
dB
Gaseous (O₂+H₂O)
3.8
dB
Diffraction loss
93.5
dB
TOTAL PATH LOSS
255.0
dB
Gas rate: 0.0499 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 14.9 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)
-255.0
dB
RX Ant Gain
30.0
dBi
RX Power
-177.0
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-37.0
dB
Path Weather Avg
Temperature
69.2°F
20.7°C
Dewpoint
63.8°F
17.6°C
T/Td Gap
5.4°F
Abs Humidity
14.9 g/m³
Pressure
988.0 mb
PWAT
40.2 mm
BL Depth
699.8 m
Refrac Gradient
-63.7 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
82
Refractivity
55
Sky Cover
50
Wind
50
Season
47
T-Td Depression
38
Time of Day
18
PWAT
15
Humidity
0
Atmospheric Profile
HRRR (3 km) Valid 2026-05-10 21:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 33.5, -97.3 | 22.1°C | 16.1°C | 988.0 mb | 937.3 m | 36.5 mm | 342.7 | -61.7 |
| 13% | 33.4, -97.2 | 22.1°C | 16.1°C | 988.0 mb | 937.3 m | 36.5 mm | 342.7 | -61.7 |
| 25% | 33.4, -97.1 | 21.8°C | 18.3°C | 994.4 mb | 719.2 m | 39.1 mm | 351.0 | -49.4 |
| 38% | 33.4, -97.0 | 20.3°C | 18.2°C | 993.8 mb | 627.9 m | 39.6 mm | 354.1 | -54.6 |
| Midpoint | 33.3, -97.0 | 20.4°C | 18.0°C | 995.5 mb | 636.7 m | 42.0 mm | 353.6 | -51.5 |
| 63% | 33.3, -96.9 | 20.4°C | 18.4°C | 996.8 mb | 857.5 m | 43.0 mm | 355.4 | -52.6 |
| 75% | 33.2, -96.8 | 20.2°C | 18.1°C | 993.1 mb | 659.9 m | 44.6 mm | 356.0 | -56.4 |
| 88% | 33.2, -96.7 | 19.5°C | 17.9°C | 992.5 mb | 466.5 m | 40.1 mm | 354.0 | -63.7 |
| Destination | 33.1, -96.6 | 19.4°C | 17.8°C | 995.0 mb | 456.2 m | 40.3 mm | 354.2 | -62.2 |
Midpoint vertical profile
17-Hour Propagation Forecast · 24 GHz
→ Steady
Best:
63
at 13:00 UTC
Worst:
41
at 02:00 UTC