Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
61 mi (99 km)
Bearing
106.4°
Terrain
BLOCKED
Propagation
63/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
159.9
dB
Gaseous (O₂+H₂O)
4.6
dB
Diffraction loss
91.3
dB
TOTAL PATH LOSS
255.8
dB
Gas rate: 0.0468 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 13.4 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)
-255.8
dB
RX Ant Gain
30.0
dBi
RX Power
-177.8
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-37.8
dB
Path Weather Avg
Temperature
73.0°F
22.8°C
Dewpoint
61.0°F
16.1°C
T/Td Gap
12.0°F
Abs Humidity
13.4 g/m³
Pressure
971.2 mb
PWAT
24.7 mm
BL Depth
298.4 m
Refrac Gradient
-111.8 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
88
Refractivity
72
T-Td Depression
60
PWAT
60
Time of Day
55
Sky Cover
50
Wind
50
Season
47
Humidity
3
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 | 33.4, -97.6 | 21.9°C | 16.8°C | 971.2 mb | 271.9 m | 27.8 mm | 345.7 | -77.7 |
| 13% | 33.3, -97.5 | 21.4°C | 17.7°C | 978.1 mb | 320.1 m | 27.9 mm | 347.5 | -84.6 |
| 25% | 33.3, -97.4 | 21.6°C | 18.0°C | 980.7 mb | 315.8 m | 27.0 mm | 349.5 | -111.8 |
| 38% | 33.3, -97.2 | 22.0°C | 17.0°C | 984.4 mb | 313.6 m | 25.7 mm | 342.4 | -96.1 |
| Midpoint | 33.2, -97.1 | 23.7°C | 14.8°C | 985.8 mb | 338.3 m | 24.0 mm | 333.7 | -70.2 |
| 63% | 33.2, -97.0 | 23.2°C | 14.8°C | 987.3 mb | 296.8 m | 23.3 mm | 332.3 | -64.6 |
| 75% | 33.2, -96.9 | 23.5°C | 15.0°C | 988.3 mb | 279.1 m | 22.7 mm | 332.9 | -69.0 |
| 88% | 33.2, -96.7 | 23.6°C | 14.9°C | 985.3 mb | 283.7 m | 22.0 mm | 333.0 | -68.1 |
| 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 17:00 UTC
Worst:
51
at 01:00 UTC