Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
18 mi (28 km)
Bearing
332.8°
Terrain
FRESNEL_MINOR
Propagation
62/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
149.0
dB
Gaseous (O₂+H₂O)
1.4
dB
TOTAL PATH LOSS
150.4
dB
Gas rate: 0.0489 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 14.5 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)
-150.4
dB
RX Ant Gain
30.0
dBi
RX Power
-72.4
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
67.6
dB
Path Weather Avg
Temperature
73.7°F
23.2°C
Dewpoint
63.3°F
17.4°C
T/Td Gap
10.4°F
Abs Humidity
14.5 g/m³
Pressure
987.4 mb
PWAT
22.9 mm
BL Depth
270.6 m
Refrac Gradient
-100.3 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
82
Refractivity
72
T-Td Depression
60
PWAT
60
Time of Day
55
Sky Cover
50
Wind
50
Season
47
Humidity
0
Atmospheric Profile
HRRR (3 km) Valid 2026-05-15 08:00 UTC 9 path samples| Point | Lat, Lon | Temp | Dewpt | Press | HPBL | PWAT | Ns | dN/dh |
|---|---|---|---|---|---|---|---|---|
| Source | 32.9, -96.5 | 24.4°C | 18.3°C | 995.2 mb | 347.0 m | 23.8 mm | 343.7 | -94.6 |
| 13% | 32.9, -96.5 | 24.4°C | 18.3°C | 995.2 mb | 347.0 m | 23.8 mm | 343.7 | -94.6 |
| 25% | 33.0, -96.5 | 21.7°C | 18.0°C | 992.9 mb | 231.8 m | 23.0 mm | 346.1 | -100.3 |
| 38% | 33.0, -96.5 | 21.7°C | 18.0°C | 992.9 mb | 231.8 m | 23.0 mm | 346.1 | -100.3 |
| Midpoint | 33.0, -96.5 | 21.7°C | 18.0°C | 992.9 mb | 231.8 m | 23.0 mm | 346.1 | -100.3 |
| 63% | 33.0, -96.6 | 22.2°C | 17.8°C | 991.0 mb | 245.8 m | 23.3 mm | 346.6 | -90.0 |
| 75% | 33.1, -96.6 | 24.1°C | 16.0°C | 987.4 mb | 266.6 m | 22.0 mm | 339.6 | -91.5 |
| 88% | 33.1, -96.6 | 24.1°C | 16.0°C | 987.4 mb | 266.6 m | 22.0 mm | 339.6 | -91.5 |
| Destination | 33.1, -96.6 | 24.1°C | 16.0°C | 987.4 mb | 266.6 m | 22.0 mm | 339.6 | -91.5 |
Midpoint vertical profile
18-Hour Propagation Forecast · 24 GHz
→ Steady
Best:
65
at 10:00 UTC
Worst:
57
at 00:00 UTC