Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
28 mi (46 km)
Bearing
171.1°
Terrain
BLOCKED
Propagation
51/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
153.2
dB
Gaseous (O₂+H₂O)
2.3
dB
Diffraction loss
56.3
dB
TOTAL PATH LOSS
211.8
dB
Gas rate: 0.0500 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)
-211.8
dB
RX Ant Gain
30.0
dBi
RX Power
-133.8
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
6.2
dB
Path Weather Avg
Temperature
68.0°F
20.0°C
Dewpoint
64.0°F
17.8°C
T/Td Gap
4.0°F
Abs Humidity
15.1 g/m³
Pressure
989.4 mb
PWAT
40.3 mm
BL Depth
611.1 m
Refrac Gradient
-67.6 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 | 33.5, -96.7 | 21.0°C | 17.2°C | 991.7 mb | 662.0 m | 37.5 mm | 347.9 | -67.6 |
| 13% | 33.5, -96.7 | 20.3°C | 17.6°C | 989.4 mb | 611.2 m | 41.1 mm | 351.5 | -62.7 |
| 25% | 33.4, -96.7 | 20.0°C | 17.7°C | 994.3 mb | 583.6 m | 39.8 mm | 353.6 | -57.8 |
| 38% | 33.4, -96.7 | 20.0°C | 17.7°C | 994.3 mb | 583.6 m | 39.8 mm | 353.6 | -57.8 |
| Midpoint | 33.3, -96.7 | 20.0°C | 17.7°C | 994.3 mb | 583.6 m | 39.8 mm | 353.6 | -57.8 |
| 63% | 33.3, -96.6 | 20.0°C | 18.2°C | 995.4 mb | 781.6 m | 42.2 mm | 356.1 | -53.2 |
| 75% | 33.2, -96.6 | 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:
32
at 02:00 UTC