Distance
102.3
km · 63.6 mi
Bearing
170.5°
true · rev 350.5°
Terrain
BLOCKED
106.8 dB diffraction
Propagation
62/100
MARGINAL
Margin
-53.9
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 ≈ 103 m AGL at the midpoint (308 m above the chord, 154 m above the 4/3 horizon), so its Fresnel zone (F₁ ≈ 17.9 m) clears with margin. The geometric line of sight is obstructed — buried 183 m below terrain at its worst point.
Great circle
34.027, -96.797 → 33.12, -96.615 · 170.5°
Loss budget · 24 GHz
FSPL (free-space)
160.2
dB
Gaseous (O₂ + H₂O)
4.9
dB
Diffraction
106.8
dB
Rain attenuation
0.0
dB
Total path loss
271.9
dB
Gas rate 0.0475 dB/km · H₂O 0.0020 dB/km/g · O₂ 0.0200 dB/km
Path abs. humidity avg 13.7 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
-271.9
dB
RX antenna gain
30.0
dBi
RX power
-193.9
dBm
Sensitivity (CW, 500 Hz)
-141.0
dBm
Margin
-53.9
dB
Path weather · HRRR average of 9 samples
Temperature
74.4 °F
23.6 °C
Dewpoint
61.7 °F
16.5 °C
T/Td gap
12.7 °F
7.1 °C
Abs. humidity
13.7
g/m³
Pressure
980.3
mb
PWAT
24.4
mm
BL depth
323.6
m AGL
Refrac. gradient
-119.7
N/km · super-refractive
Propagation factors · 24 GHz
62/100
Rain
100
14%
Humidity
2
13%
PWAT
60
11%
Season
47
11%
T-Td Depression
60
10%
Refractivity
72
10%
Pressure
82
10%
Sky Cover
50
8%
Wind
50
8%
Time of Day
55
4%
Atmospheric profile
HRRR 3 km
Valid 2026-05-15 08:00 UTC
· 9 samples
Point
Lat, lon
Temp
Dewpt
Press
dN/dh
BL m
PWAT
Duct
Source
34.0, -96.8
23.3 °C
17.8 °C
980.3 mb
-74.0
359.8
28.0 mm
—
13%
33.9, -96.8
23.3 °C
17.6 °C
982.2 mb
-83.9
348.3
27.4 mm
—
25%
33.8, -96.8
23.9 °C
16.6 °C
985.8 mb
-78.4
363.4
26.4 mm
—
38%
33.7, -96.7
23.2 °C
16.5 °C
983.2 mb
-110.2
340.0
24.3 mm
—
Midpoint
33.6, -96.7
23.2 °C
16.5 °C
983.2 mb
-110.2
340.0
24.3 mm
—
63%
33.5, -96.7
23.7 °C
16.1 °C
980.6 mb
-119.7
317.8
22.8 mm
—
75%
33.3, -96.7
23.9 °C
15.8 °C
986.1 mb
-102.5
307.6
22.3 mm
—
88%
33.2, -96.6
23.7 °C
15.6 °C
987.5 mb
-91.6
269.3
22.0 mm
—
Destination
33.1, -96.6
24.1 °C
16.0 °C
987.4 mb
-91.5
266.6
22.0 mm
—
Midpoint vertical profile
18-hour forecast · this path · 24 GHz
→ steady
Peak 63
at 10:00 UTC
· low 49
at 01:00 UTC
| Hour UTC | Score | Rating |
|---|---|---|
| 08:00 | 62 | MARGINAL |
| 09:00 | 60 | MARGINAL |
| 10:00 | 63 | MARGINAL |
| 11:00 | 59 | MARGINAL |
| 12:00 | 60 | MARGINAL |
| 13:00 | 60 | MARGINAL |
| 14:00 | 60 | MARGINAL |
| 15:00 | 59 | MARGINAL |
| 16:00 | 56 | MARGINAL |
| 17:00 | 60 | MARGINAL |
| 18:00 | 60 | MARGINAL |
| 19:00 | 60 | MARGINAL |
| 20:00 | 63 | MARGINAL |
| 21:00 | 58 | MARGINAL |
| 22:00 | 59 | MARGINAL |
| 23:00 | 56 | MARGINAL |
| 00:00 | 55 | MARGINAL |
| 01:00 · now | 49 | POOR |