Distance
319.9
km · 198.8 mi
Bearing
242.3°
true · rev 62.3°
Terrain
BLOCKED
145.7 dB diffraction
Propagation
68/100
GOOD
Margin
-109.3
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 ≈ 1004 m AGL at the midpoint (3012 m above the chord, 1506 m above the 4/3 horizon), so its Fresnel zone (F₁ ≈ 31.6 m) clears with margin. The geometric line of sight is obstructed — buried 1355 m below terrain at its worst point.
Great circle
34.564, -93.407 → 33.189, -96.452 · 242.3°
Loss budget · 24 GHz
FSPL (free-space)
170.1
dB
Gaseous (O₂ + H₂O)
11.4
dB
Diffraction
145.7
dB
Rain attenuation
0.0
dB
Total path loss
327.3
dB
Gas rate 0.0358 dB/km · H₂O 0.0020 dB/km/g · O₂ 0.0200 dB/km
Path abs. humidity avg 7.9 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
-327.3
dB
RX antenna gain
30.0
dBi
RX power
-249.3
dBm
Sensitivity (CW, 500 Hz)
-141.0
dBm
Margin
-109.3
dB
Path weather · HRRR average of 9 samples
Temperature
80.0 °F
26.7 °C
Dewpoint
46.8 °F
8.2 °C
T/Td gap
33.2 °F
18.5 °C
Abs. humidity
7.9
g/m³
Pressure
983.9
mb
PWAT
16.1
mm
BL depth
2129.5
m AGL
Refrac. gradient
0
N/km
Propagation factors · 24 GHz
68/100
Rain
100
14%
Humidity
48
13%
PWAT
80
11%
Season
47
11%
T-Td Depression
96
10%
Refractivity
50
10%
Pressure
82
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
34.6, -93.4
26.2 °C
8.2 °C
994.5 mb
1911.0
15.9 mm
—
13%
34.4, -93.8
24.4 °C
9.7 °C
983.9 mb
1668.8
15.2 mm
—
25%
34.2, -94.2
24.8 °C
10.9 °C
987.0 mb
1771.0
16.3 mm
—
38%
34.0, -94.5
26.3 °C
10.7 °C
1001.8 mb
2173.1
17.7 mm
—
Midpoint
33.9, -94.9
27.4 °C
8.5 °C
1000.5 mb
2263.7
16.9 mm
—
63%
33.7, -95.3
27.3 °C
7.9 °C
998.2 mb
2306.6
15.8 mm
—
75%
33.5, -95.7
28.3 °C
6.4 °C
999.0 mb
2367.1
17.2 mm
—
88%
33.4, -96.1
27.4 °C
7.4 °C
994.0 mb
2324.4
16.7 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 75
at 10:00 UTC
· low 68
at 07:00 UTC
| Hour UTC | Score | Rating |
|---|---|---|
| 20:00 | 69 | GOOD |
| 21:00 | 72 | GOOD |
| 22:00 | 72 | GOOD |
| 23:00 | 72 | GOOD |
| 00:00 | 71 | GOOD |
| 01:00 | 71 | GOOD |
| 02:00 | 70 | GOOD |
| 03:00 | 71 | GOOD |
| 04:00 | 70 | GOOD |
| 05:00 | 70 | GOOD |
| 06:00 | 70 | GOOD |
| 07:00 | 68 | GOOD |
| 08:00 | 68 | GOOD |
| 09:00 | 70 | GOOD |
| 10:00 | 75 | GOOD |
| 11:00 | 72 | GOOD |
| 12:00 · now | 73 | GOOD |