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 · 10 GHz

Distance

167 mi (268 km)

Bearing

230.0°

Terrain

BLOCKED

Propagation

79/100

GOOD

HRRR Data

9 / 9 points

Loss Budget · 10 GHz

FSPL (free-space) 161.0 dB

Gaseous (O₂+H₂O) 1.9 dB

Diffraction loss 121.5 dB

TOTAL PATH LOSS 284.4 dB

Gas rate: 0.0070 dB/km

H₂O: 0.0000 dB/km/g · O₂: 0.0070 dB/km

Abs humidity avg: 13.8 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) -284.4 dB

RX Ant Gain 30.0 dBi

RX Power -206.4 dBm

Sensitivity (CW) -141.0 dBm

MARGIN -66.4 dB

Path Weather Avg

Temperature

68.8°F

20.5°C

Dewpoint

61.6°F

16.4°C

T/Td Gap

7.2°F

Abs Humidity

13.8 g/m³

Pressure

975.3 mb

PWAT

24.1 mm

BL Depth

271.4 m

Refrac Gradient

-192.1 N/km

Propagation Factors · 10 GHz

Rain 100

Refractivity 92

Humidity 90

PWAT 90

Pressure 88

T-Td Depression 75

Season 68

Time of Day 55

Sky Cover 50

Wind 50

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, -94.4	19.2°C	14.5°C	975.3 mb	327.1 m	21.5 mm	338.6	-119.6
13%	34.5, -94.7	18.4°C	14.4°C	982.1 mb	330.9 m	26.2 mm	337.4	-192.1
25%	34.3, -95.0	18.2°C	15.4°C	985.7 mb	288.0 m	25.0 mm	343.8	-115.4
38%	34.1, -95.2	18.4°C	16.8°C	988.8 mb	291.6 m	26.4 mm	351.7	-115.9
Midpoint	33.9, -95.5	19.4°C	18.3°C	995.7 mb	186.1 m	25.7 mm	354.5	-173.6
63%	33.7, -95.8	21.1°C	17.9°C	990.5 mb	254.6 m	25.5 mm	349.5	-179.1
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, -96.3	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 · 10 GHz

→ Steady

Best: 80 at 13:00 UTC Worst: 67 at 00:00 UTC