Path Calculator
Analyze microwave propagation between two points
Link Summary · 10 GHz
Distance
13 mi (21 km)
Bearing
258.6°
Terrain
FRESNEL_MINOR
Propagation
65/100
GOOD
HRRR Data
9 / 9 points
Loss Budget · 10 GHz
FSPL (free-space)
139.0
dB
Gaseous (O₂+H₂O)
0.2
dB
TOTAL PATH LOSS
139.2
dB
Gas rate: 0.0070 dB/km
H₂O: 0.0000 dB/km/g ·
O₂: 0.0070 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)
-139.2
dB
RX Ant Gain
30.0
dBi
RX Power
-61.2
dBm
Sensitivity (CW)
-141.0
dBm
MARGIN
78.8
dB
Path Weather Avg
Temperature
66.2°F
19.0°C
Dewpoint
64.0°F
17.8°C
T/Td Gap
2.2°F
Abs Humidity
15.1 g/m³
Pressure
995.0 mb
PWAT
40.4 mm
BL Depth
446.3 m
Refrac Gradient
-65.0 N/km
Propagation Factors · 10 GHz
Rain
100
Humidity
95
Pressure
70
Season
68
Refractivity
55
PWAT
50
Sky Cover
50
Wind
50
T-Td Depression
40
Time of Day
18
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 | 33.2, -96.4 | 18.9°C | 17.7°C | 997.6 mb | 472.8 m | 39.3 mm | 354.1 | -63.8 |
| 13% | 33.2, -96.4 | 18.9°C | 17.7°C | 997.6 mb | 472.8 m | 39.3 mm | 354.1 | -63.8 |
| 25% | 33.1, -96.4 | 18.9°C | 17.8°C | 998.4 mb | 431.7 m | 40.8 mm | 354.3 | -65.0 |
| 38% | 33.1, -96.5 | 18.9°C | 17.8°C | 998.4 mb | 431.7 m | 40.8 mm | 354.3 | -65.0 |
| Midpoint | 33.1, -96.5 | 18.9°C | 17.8°C | 998.4 mb | 431.7 m | 40.8 mm | 354.3 | -65.0 |
| 63% | 33.1, -96.5 | 18.9°C | 17.8°C | 998.4 mb | 431.7 m | 40.8 mm | 354.3 | -65.0 |
| 75% | 33.1, -96.6 | 18.9°C | 17.8°C | 998.4 mb | 431.7 m | 40.8 mm | 354.3 | -65.0 |
| 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 · 10 GHz
→ Steady
Best:
75
at 12:00 UTC
Worst:
61
at 02:00 UTC