Distance
154.7
km · 96.1 mi
Bearing
150.5°
true · rev 330.5°
Terrain
BLOCKED
119.9 dB diffraction
Propagation
62/100
MARGINAL
Margin
-73.0
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 ≈ 235 m AGL at the midpoint (704 m above the chord, 352 m above the 4/3 horizon), so its Fresnel zone (F₁ ≈ 22.0 m) clears with margin. The geometric line of sight is obstructed — buried 356 m below terrain at its worst point.
Great circle
34.333, -97.434 → 33.12, -96.615 · 150.5°
Loss budget · 24 GHz
FSPL (free-space)
163.8
dB
Gaseous (O₂ + H₂O)
7.3
dB
Diffraction
119.9
dB
Rain attenuation
0.0
dB
Total path loss
291.0
dB
Gas rate 0.0471 dB/km · H₂O 0.0020 dB/km/g · O₂ 0.0200 dB/km
Path abs. humidity avg 13.6 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
-291.0
dB
RX antenna gain
30.0
dBi
RX power
-213.0
dBm
Sensitivity (CW, 500 Hz)
-141.0
dBm
Margin
-73.0
dB
Path weather · HRRR average of 9 samples
Temperature
73.9 °F
23.3 °C
Dewpoint
61.4 °F
16.3 °C
T/Td gap
12.6 °F
7.0 °C
Abs. humidity
13.6
g/m³
Pressure
973.3
mb
PWAT
26.8
mm
BL depth
323.9
m AGL
Refrac. gradient
-91.5
N/km
Propagation factors · 24 GHz
62/100
Rain
100
14%
Humidity
3
13%
PWAT
60
11%
Season
47
11%
T-Td Depression
60
10%
Refractivity
62
10%
Pressure
88
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
34.3, -97.4
22.0 °C
17.0 °C
973.3 mb
-87.1
332.0
31.2 mm
—
13%
34.2, -97.3
23.5 °C
16.4 °C
975.9 mb
-69.8
314.4
29.8 mm
—
25%
34.0, -97.2
23.0 °C
17.1 °C
976.0 mb
-84.1
336.1
30.8 mm
—
38%
33.9, -97.1
23.2 °C
16.8 °C
980.1 mb
-72.7
349.6
29.5 mm
—
Midpoint
33.7, -97.0
22.5 °C
17.5 °C
979.6 mb
-82.0
340.1
27.5 mm
—
63%
33.6, -96.9
23.5 °C
16.0 °C
981.8 mb
-88.1
355.1
25.3 mm
—
75%
33.4, -96.8
23.7 °C
15.3 °C
986.5 mb
-81.8
339.3
23.5 mm
—
88%
33.3, -96.7
24.1 °C
14.8 °C
985.1 mb
-64.2
282.1
21.9 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 64
at 20:00 UTC
· low 52
at 00:00 UTC
| Hour UTC | Score | Rating |
|---|---|---|
| 08:00 | 63 | MARGINAL |
| 09:00 | 59 | MARGINAL |
| 10:00 | 62 | MARGINAL |
| 11:00 | 57 | MARGINAL |
| 12:00 | 57 | MARGINAL |
| 13:00 | 60 | MARGINAL |
| 14:00 | 60 | MARGINAL |
| 15:00 | 59 | MARGINAL |
| 16:00 | 55 | MARGINAL |
| 17:00 | 60 | MARGINAL |
| 18:00 | 61 | MARGINAL |
| 19:00 | 61 | MARGINAL |
| 20:00 | 64 | MARGINAL |
| 21:00 | 58 | MARGINAL |
| 22:00 | 59 | MARGINAL |
| 23:00 | 53 | MARGINAL |
| 00:00 | 52 | MARGINAL |
| 01:00 · now | 54 | MARGINAL |