Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
122 mi (196 km)
Bearing
97.5°
Terrain
BLOCKED
Propagation
64/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
165.9
dB
Gaseous (O₂+H₂O)
8.8
dB
Diffraction loss
129.8
dB
TOTAL PATH LOSS
304.6
dB
Gas rate: 0.0449 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 12.5 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)
-304.6
dB
RX Ant Gain
30.0
dBi
RX Power
-226.6
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-86.6
dB
Path Weather Avg
Temperature
74.1°F
23.4°C
Dewpoint
59.0°F
15.0°C
T/Td Gap
15.1°F
Abs Humidity
12.5 g/m³
Pressure
964.3 mb
PWAT
26.0 mm
BL Depth
298.4 m
Refrac Gradient
-111.8 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
88
T-Td Depression
80
Refractivity
72
PWAT
60
Time of Day
55
Sky Cover
50
Wind
50
Season
47
Humidity
6
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, -98.7 | 26.1°C | 11.1°C | 964.3 mb | 219.3 m | 25.2 mm | 315.6 | -79.5 |
| 13% | 33.3, -98.4 | 24.2°C | 12.6°C | 967.8 mb | 347.8 m | 24.9 mm | 324.2 | -77.6 |
| 25% | 33.3, -98.2 | 22.8°C | 14.0°C | 973.5 mb | 259.2 m | 29.0 mm | 330.6 | -70.3 |
| 38% | 33.3, -97.9 | 22.9°C | 16.6°C | 978.8 mb | 351.3 m | 30.5 mm | 336.8 | -83.6 |
| Midpoint | 33.2, -97.7 | 21.8°C | 17.1°C | 977.7 mb | 314.6 m | 28.5 mm | 344.8 | -77.9 |
| 63% | 33.2, -97.4 | 21.6°C | 18.0°C | 980.7 mb | 315.8 m | 27.0 mm | 349.5 | -111.8 |
| 75% | 33.2, -97.1 | 23.7°C | 14.6°C | 988.7 mb | 331.9 m | 24.0 mm | 331.7 | -58.0 |
| 88% | 33.2, -96.9 | 23.5°C | 15.0°C | 988.3 mb | 279.1 m | 22.7 mm | 332.9 | -69.0 |
| 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:
64
at 18:00 UTC
Worst:
47
at 00:00 UTC