Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
18 mi (28 km)
Bearing
332.8°
Terrain
BLOCKED
Propagation
51/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
149.0
dB
Gaseous (O₂+H₂O)
1.4
dB
Diffraction loss
21.2
dB
TOTAL PATH LOSS
171.7
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)
-171.7
dB
RX Ant Gain
30.0
dBi
RX Power
-93.7
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
46.3
dB
Path Weather Avg
Temperature
67.0°F
19.4°C
Dewpoint
64.1°F
17.8°C
T/Td Gap
2.9°F
Abs Humidity
15.1 g/m³
Pressure
995.0 mb
PWAT
39.9 mm
BL Depth
440.8 m
Refrac Gradient
-71.9 N/km
Propagation Factors · 24 GHz
Rain
100
Pressure
70
Refractivity
55
Sky Cover
50
Wind
50
Season
47
PWAT
35
T-Td Depression
18
Time of Day
18
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 | 32.9, -96.5 | 20.1°C | 17.9°C | 1001.5 mb | 429.9 m | 39.2 mm | 352.1 | -62.8 |
| 13% | 32.9, -96.5 | 20.1°C | 17.9°C | 1001.5 mb | 429.9 m | 39.2 mm | 352.1 | -62.8 |
| 25% | 33.0, -96.5 | 18.9°C | 17.7°C | 999.8 mb | 433.5 m | 40.5 mm | 353.6 | -67.9 |
| 38% | 33.0, -96.5 | 18.9°C | 17.7°C | 999.8 mb | 433.5 m | 40.5 mm | 353.6 | -67.9 |
| Midpoint | 33.0, -96.5 | 18.9°C | 17.7°C | 999.8 mb | 433.5 m | 40.5 mm | 353.6 | -67.9 |
| 63% | 33.0, -96.6 | 19.7°C | 18.0°C | 998.0 mb | 438.2 m | 38.7 mm | 353.2 | -71.9 |
| 75% | 33.1, -96.6 | 19.4°C | 17.8°C | 995.0 mb | 456.2 m | 40.3 mm | 354.2 | -62.2 |
| 88% | 33.1, -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:
60
at 13:00 UTC
Worst:
42
at 21:00 UTC