Path Calculator
Analyze microwave propagation between two points
Link Summary · 24 GHz
Distance
99 mi (160 km)
Bearing
48.2°
Terrain
BLOCKED
Propagation
63/100
MARGINAL
HRRR Data
9 / 9 points
Loss Budget · 24 GHz
FSPL (free-space)
164.1
dB
Gaseous (O₂+H₂O)
7.3
dB
Diffraction loss
116.4
dB
TOTAL PATH LOSS
287.8
dB
Gas rate: 0.0456 dB/km
H₂O: 0.0020 dB/km/g ·
O₂: 0.0200 dB/km
Abs humidity avg: 12.8 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)
-287.8
dB
RX Ant Gain
30.0
dBi
RX Power
-209.8
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
-69.8
dB
Path Weather Avg
Temperature
73.0°F
22.8°C
Dewpoint
59.7°F
15.4°C
T/Td Gap
13.3°F
Abs Humidity
12.8 g/m³
Pressure
972.4 mb
PWAT
23.5 mm
BL Depth
239.4 m
Refrac Gradient
-114.9 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
5
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 | 32.2, -97.9 | 20.1°C | 15.5°C | 972.4 mb | 120.3 m | 23.4 mm | 338.3 | -77.7 |
| 13% | 32.3, -97.7 | 21.9°C | 16.2°C | 985.0 mb | 175.1 m | 24.4 mm | 340.2 | -91.3 |
| 25% | 32.4, -97.6 | 23.0°C | 14.9°C | 983.0 mb | 237.1 m | 24.0 mm | 336.8 | -88.4 |
| 38% | 32.5, -97.4 | 22.7°C | 14.0°C | 981.0 mb | 236.1 m | 23.3 mm | 333.1 | -114.9 |
| Midpoint | 32.6, -97.3 | 21.4°C | 15.3°C | 988.0 mb | 204.5 m | 23.7 mm | 333.9 | -98.7 |
| 63% | 32.8, -97.1 | 23.6°C | 14.8°C | 989.2 mb | 268.6 m | 23.5 mm | 334.7 | -76.8 |
| 75% | 32.9, -96.9 | 23.7°C | 16.1°C | 993.0 mb | 335.5 m | 24.5 mm | 339.3 | -80.7 |
| 88% | 33.0, -96.8 | 24.5°C | 15.6°C | 986.8 mb | 310.9 m | 22.9 mm | 338.6 | -81.7 |
| 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:
63
at 17:00 UTC
Worst:
55
at 01:00 UTC