Path Calculator

Analyze microwave propagation between two points

Source

Destination ( or grid)

Band

TX Power (dBm)

TX Height (ft)

TX Gain (dBi)

RX Height (ft)

RX Gain (dBi)

Link Summary · 24 GHz

Distance

158 mi (254 km)

Bearing

227.5°

Terrain

BLOCKED

Propagation

64/100

MARGINAL

HRRR Data

9 / 9 points

Loss Budget · 24 GHz

FSPL (free-space) 168.1 dB

Gaseous (O₂+H₂O) 12.1 dB

Diffraction loss 130.0 dB

TOTAL PATH LOSS 310.3 dB

Gas rate: 0.0478 dB/km

H₂O: 0.0020 dB/km/g · O₂: 0.0200 dB/km

Abs humidity avg: 13.9 g/m³

Power Budget

TX Power 20.0 dBm (100.0 mW)

TX Ant Gain 30.0 dBi

Feed Loss (×2) -2.0 dB

EIRP 48.0 dBm

Path Loss (w/FF) -310.3 dB

RX Ant Gain 30.0 dBi

RX Power -232.3 dBm

Sensitivity (CW) -141.0 dBm

MARGIN -92.3 dB

Path Weather Avg

Temperature

69.2°F

20.7°C

Dewpoint

61.7°F

16.5°C

T/Td Gap

7.4°F

Abs Humidity

13.9 g/m³

Pressure

955.7 mb

PWAT

24.1 mm

BL Depth

273.2 m

Refrac Gradient

-204.2 N/km

Propagation Factors · 24 GHz

Rain 100

Pressure 88

Refractivity 85

PWAT 60

Time of Day 55

Sky Cover 50

Wind 50

Season 47

T-Td Depression 38

Humidity 2

Atmospheric Profile

HRRR (3 km) Valid 2026-05-15 08:00 UTC 9 path samples

Point	Lat, Lon	Temp	Dewpt	Press	HPBL	PWAT	N_s	dN/dh
Source	34.7, -94.6	19.4°C	15.1°C	973.9 mb	313.4 m	24.3 mm	343.7	-140.1
13%	34.5, -94.9	18.9°C	15.6°C	955.7 mb	294.8 m	22.3 mm	353.5	-113.6
25%	34.3, -95.1	17.5°C	15.3°C	992.9 mb	284.7 m	26.5 mm	343.7	-109.6
38%	34.1, -95.4	19.6°C	17.3°C	991.8 mb	292.6 m	27.2 mm	352.1	-110.8
Midpoint	33.9, -95.6	19.9°C	17.4°C	992.2 mb	252.4 m	25.9 mm	350.1	-204.2
63%	33.7, -95.9	21.4°C	17.3°C	990.1 mb	256.3 m	23.9 mm	345.2	-102.0
75%	33.5, -96.1	22.7°C	17.5°C	985.4 mb	247.9 m	22.8 mm	348.6	-103.3
88%	33.3, -96.4	22.6°C	17.1°C	986.2 mb	250.2 m	22.0 mm	345.4	-122.6
Destination	33.1, -96.6	24.1°C	16.0°C	987.4 mb	266.6 m	22.0 mm	339.6	-91.5

Midpoint vertical profile

18-Hour Propagation Forecast · 24 GHz

→ Steady

Best: 64 at 13:00 UTC Worst: 54 at 23:00 UTC