Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
69 mi (111 km)
Bearing
100.3°
Terrain
BLOCKED
Propagation
51/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
161.0
dB
Gaseous (O₂+H₂O)
5.6
dB
Diffraction loss
102.9
dB
TOTAL PATH LOSS
269.4
dB
Gas rate: 0.0501 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 15.0 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)
-269.4
dB
RX Ant Gain
30.0
dBi
RX Power
-191.4
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-51.4
dB
Path Weather Avg
Temperature
68.7°F
20.4°C
Dewpoint
64.0°F
17.8°C
T/Td Gap
4.8°F
Abs Humidity
15.0 g/m³
Pressure
980.1 mb
PWAT
41.5 mm
BL Depth
754.0 m
Refrac Gradient
-58.9 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 | 33.4, -97.6 | 19.8°C | 17.1°C | 980.1 mb | 776.9 m | 40.5 mm | 352.8 | -54.7 |
| 13% | 33.4, -97.5 | 20.3°C | 17.2°C | 987.0 mb | 815.1 m | 38.8 mm | 350.0 | -49.1 |
| 25% | 33.3, -97.3 | 21.4°C | 17.5°C | 985.2 mb | 1009.9 m | 40.1 mm | 351.4 | -50.2 |
| 38% | 33.3, -97.2 | 21.2°C | 17.4°C | 992.9 mb | 648.0 m | 41.1 mm | 350.7 | -53.3 |
| 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, -96.7 | 20.2°C | 18.1°C | 993.1 mb | 659.9 m | 44.6 mm | 356.0 | -56.4 |
| 88% | 33.2, -96.6 | 20.0°C | 18.2°C | 995.4 mb | 781.6 m | 42.2 mm | 356.1 | -53.2 |
| Destination | 33.2, -96.5 | 20.1°C | 17.9°C | 997.2 mb | 600.2 m | 41.5 mm | 353.7 | -58.9 |
Midpoint vertical profile
17-Hour Propagation Forecast · 24 GHz
→ Steady
Best:
63
at 13:00 UTC
Worst:
41
at 02:00 UTC