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

153 mi (246 km)

Bearing

223.2°

Terrain

BLOCKED

Propagation

62/100

MARGINAL

HRRR Data

9 / 9 points

Loss Budget · 24 GHz

FSPL (free-space) 167.9 dB

Gaseous (O₂+H₂O) 11.9 dB

Diffraction loss 129.5 dB

TOTAL PATH LOSS 309.3 dB

Gas rate: 0.0484 dB/km

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

Abs humidity avg: 14.2 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) -309.3 dB

RX Ant Gain 30.0 dBi

RX Power -231.3 dBm

Sensitivity (CW) -141.0 dBm

MARGIN -91.3 dB

Path Weather Avg

Temperature

69.3°F

20.7°C

Dewpoint

62.4°F

16.9°C

T/Td Gap

7.0°F

Abs Humidity

14.2 g/m³

Pressure

960.8 mb

PWAT

23.8 mm

BL Depth

272.6 m

Refrac Gradient

-147.4 N/km

Propagation Factors · 24 GHz

Rain 100

Pressure 88

Refractivity 72

PWAT 60

Time of Day 55

Sky Cover 50

Wind 50

Season 47

T-Td Depression 38

Humidity 1

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, -94.8	19.5°C	15.9°C	960.8 mb	316.9 m	22.2 mm	350.7	-124.0
13%	34.5, -95.0	17.7°C	15.1°C	967.5 mb	292.6 m	23.2 mm	346.9	-105.7
25%	34.3, -95.3	18.5°C	15.8°C	975.9 mb	294.3 m	24.8 mm	349.5	-95.1
38%	34.1, -95.5	19.7°C	18.7°C	993.7 mb	301.4 m	26.9 mm	358.9	-120.5
Midpoint	33.9, -95.7	20.5°C	18.2°C	994.5 mb	227.5 m	26.9 mm	353.2	-147.4
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, -96.2	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 08:00 UTC Worst: 53 at 00:00 UTC