Distance
121.8
km · 75.7 mi
Bearing
219.2°
true · rev 39.2°
Terrain
BLOCKED
113.5 dB diffraction
Propagation
68/100
GOOD
Margin
-61.4
dB over CW threshold
Terrain profile · SRTM 30 m + canopy + MS footprints
Line of sight
1st Fresnel
Duct layer
Horizon ray
Common volume
Over the horizon: the two horizon-skimming rays intersect at the common volume ≈ 145 m AGL at the midpoint (436 m above the chord, 218 m above the 4/3 horizon), so its Fresnel zone (F₁ ≈ 19.5 m) clears with margin. The geometric line of sight is obstructed — buried 244 m below terrain at its worst point.
Great circle
34.041, -95.625 → 33.189, -96.452 · 219.2°
Loss budget · 24 GHz
FSPL (free-space)
161.8
dB
Gaseous (O₂ + H₂O)
4.1
dB
Diffraction
113.5
dB
Rain attenuation
0.0
dB
Total path loss
279.4
dB
Gas rate 0.0339 dB/km · H₂O 0.0020 dB/km/g · O₂ 0.0200 dB/km
Path abs. humidity avg 7.0 g/m³
Power budget
TX power
20.0
dBm
(100.0 mW)
TX antenna gain
30.0
dBi
Feed loss (×2)
-2.0
dB
EIRP
48.0
dBm
Path loss
-279.4
dB
RX antenna gain
30.0
dBi
RX power
-201.4
dBm
Sensitivity (CW, 500 Hz)
-141.0
dBm
Margin
-61.4
dB
Path weather · HRRR average of 9 samples
Temperature
82.6 °F
28.1 °C
Dewpoint
43.6 °F
6.5 °C
T/Td gap
39.0 °F
21.6 °C
Abs. humidity
7.0
g/m³
Pressure
991.2
mb
PWAT
15.5
mm
BL depth
2388.0
m AGL
Refrac. gradient
0
N/km
Propagation factors · 24 GHz
68/100
Rain
100
14%
Humidity
59
13%
PWAT
80
11%
Season
47
11%
T-Td Depression
96
10%
Refractivity
50
10%
Pressure
70
10%
Sky Cover
50
8%
Wind
50
8%
Time of Day
18
4%
Atmospheric profile
HRRR 3 km
Valid 2026-05-03 20:00 UTC
· 9 samples
Point
Lat, lon
Temp
Dewpt
Press
dN/dh
BL m
PWAT
Duct
Source
34.0, -95.6
27.9 °C
8.0 °C
995.6 mb
2340.4
15.3 mm
—
13%
33.9, -95.7
28.8 °C
7.4 °C
999.5 mb
2421.4
16.7 mm
—
25%
33.8, -95.8
28.1 °C
7.8 °C
998.9 mb
2356.5
15.8 mm
—
38%
33.7, -95.9
28.2 °C
7.4 °C
995.6 mb
2386.7
16.4 mm
—
Midpoint
33.6, -96.0
27.2 °C
7.0 °C
994.9 mb
2326.5
14.9 mm
—
63%
33.5, -96.1
27.9 °C
5.6 °C
991.2 mb
2381.4
15.1 mm
—
75%
33.4, -96.2
28.4 °C
4.9 °C
991.2 mb
2492.0
16.1 mm
—
88%
33.3, -96.3
28.5 °C
6.0 °C
997.2 mb
2407.3
15.6 mm
—
Destination
33.2, -96.5
27.8 °C
4.1 °C
995.4 mb
2379.9
13.3 mm
—
Midpoint vertical profile
17-hour forecast · this path · 24 GHz
→ steady
Peak 73
at 21:00 UTC
· low 67
at 01:00 UTC
| Hour UTC | Score | Rating |
|---|---|---|
| 20:00 | 70 | GOOD |
| 21:00 | 73 | GOOD |
| 22:00 | 72 | GOOD |
| 23:00 | 70 | GOOD |
| 00:00 | 70 | GOOD |
| 01:00 | 67 | GOOD |
| 02:00 | 67 | GOOD |
| 03:00 | 68 | GOOD |
| 04:00 | 71 | GOOD |
| 05:00 | 72 | GOOD |
| 06:00 | 72 | GOOD |
| 07:00 | 72 | GOOD |
| 08:00 | 72 | GOOD |
| 09:00 | 71 | GOOD |
| 10:00 | 72 | GOOD |
| 11:00 | 73 | GOOD |
| 12:00 · now | 72 | GOOD |