Distance
154.7
km · 96.1 mi
Bearing
150.5°
true · rev 330.5°
Terrain
BLOCKED
120.3 dB diffraction
Propagation
70/100
GOOD
Margin
-71.3
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 ≈ 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 360 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)
5.2
dB
Diffraction
120.3
dB
Rain attenuation
0.0
dB
Total path loss
289.3
dB
Gas rate 0.0337 dB/km · H₂O 0.0020 dB/km/g · O₂ 0.0200 dB/km
Path abs. humidity avg 6.8 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
-289.3
dB
RX antenna gain
30.0
dBi
RX power
-211.3
dBm
Sensitivity (CW, 500 Hz)
-141.0
dBm
Margin
-71.3
dB
Path weather · HRRR average of 9 samples
Temperature
81.5 °F
27.5 °C
Dewpoint
43.2 °F
6.2 °C
T/Td gap
38.3 °F
21.3 °C
Abs. humidity
6.8
g/m³
Pressure
980.0
mb
PWAT
14.1
mm
BL depth
2309.7
m AGL
Refrac. gradient
0
N/km
Propagation factors · 24 GHz
70/100
Rain
100
14%
Humidity
60
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
34.3, -97.4
27.8 °C
7.0 °C
980.0 mb
2451.4
15.8 mm
—
13%
34.2, -97.3
26.9 °C
6.9 °C
983.1 mb
2302.3
13.2 mm
—
25%
34.0, -97.2
26.7 °C
8.4 °C
982.9 mb
2300.6
15.1 mm
—
38%
33.9, -97.1
27.8 °C
7.6 °C
987.0 mb
2340.2
15.4 mm
—
Midpoint
33.7, -97.0
26.9 °C
6.0 °C
986.5 mb
2177.0
13.2 mm
—
63%
33.6, -96.9
27.4 °C
6.2 °C
988.7 mb
2225.4
13.4 mm
—
75%
33.4, -96.8
27.6 °C
5.2 °C
993.6 mb
2274.0
12.7 mm
—
88%
33.3, -96.7
28.1 °C
4.7 °C
992.1 mb
2338.5
14.1 mm
—
Destination
33.1, -96.6
28.2 °C
3.9 °C
994.1 mb
2377.9
13.9 mm
—
Midpoint vertical profile
17-hour forecast · this path · 24 GHz
→ steady
Peak 74
at 20:00 UTC
· low 67
at 12:00 UTC
| Hour UTC | Score | Rating |
|---|---|---|
| 20:00 | 74 | GOOD |
| 21:00 | 74 | GOOD |
| 22:00 | 73 | GOOD |
| 23:00 | 73 | GOOD |
| 00:00 | 72 | GOOD |
| 01:00 | 69 | GOOD |
| 02:00 | 69 | GOOD |
| 03:00 | 71 | GOOD |
| 04:00 | 74 | GOOD |
| 05:00 | 73 | GOOD |
| 06:00 | 74 | GOOD |
| 07:00 | 74 | GOOD |
| 08:00 | 72 | GOOD |
| 09:00 | 72 | GOOD |
| 10:00 | 73 | GOOD |
| 11:00 | 73 | GOOD |
| 12:00 · now | 67 | GOOD |