Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
28 mi (45 km)
Bearing
149.1°
Terrain
BLOCKED
Propagation
49/100
POOR
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
153.0
dB
Gaseous (O₂+H₂O)
2.2
dB
Diffraction loss
90.9
dB
TOTAL PATH LOSS
246.2
dB
Gas rate: 0.0503 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 15.1 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)
-246.2
dB
RX Ant Gain
30.0
dBi
RX Power
-168.2
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-28.2
dB
Path Weather Avg
Temperature
68.6°F
20.3°C
Dewpoint
64.2°F
17.9°C
T/Td Gap
4.4°F
Abs Humidity
15.1 g/m³
Pressure
991.7 mb
PWAT
41.8 mm
BL Depth
659.9 m
Refrac Gradient
-72.5 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
70
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, -96.9 | 21.4°C | 16.7°C | 994.5 mb | 758.5 m | 37.7 mm | 345.7 | -72.5 |
| 13% | 33.4, -96.8 | 20.3°C | 18.1°C | 995.6 mb | 649.2 m | 41.7 mm | 353.6 | -59.4 |
| 25% | 33.4, -96.8 | 21.1°C | 18.1°C | 991.7 mb | 758.9 m | 42.3 mm | 354.8 | -51.7 |
| 38% | 33.3, -96.8 | 21.1°C | 18.1°C | 991.7 mb | 758.9 m | 42.3 mm | 354.8 | -51.7 |
| Midpoint | 33.3, -96.7 | 20.2°C | 18.1°C | 993.1 mb | 659.9 m | 44.6 mm | 356.0 | -56.4 |
| 63% | 33.2, -96.7 | 20.2°C | 18.1°C | 993.1 mb | 659.9 m | 44.6 mm | 356.0 | -56.4 |
| 75% | 33.2, -96.7 | 20.0°C | 18.2°C | 995.4 mb | 781.6 m | 42.2 mm | 356.1 | -53.2 |
| 88% | 33.2, -96.6 | 19.4°C | 17.8°C | 995.0 mb | 456.2 m | 40.3 mm | 354.2 | -62.2 |
| 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:
62
at 12:00 UTC
Worst:
40
at 22:00 UTC