K7JDF-9-to-LARCH.txt

		--==[ SPLAT! v1.4.2 Path Analysis ]==--

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Transmitter site: K7JDF-9
Site location: 45.4667 North / 122.8048 West (45∞ 28' 0" N / 122∞ 48' 17" W)
Ground elevation: 298.56 feet AMSL
Antenna height: 10.00 feet AGL / 308.56 feet AMSL
Distance to LARCH: 30.07 miles
Azimuth to LARCH: 54.75 degrees
Elevation angle to LARCH: +0.9439 degrees
Elevation angle to the first obstruction: +0.9460 degrees

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Receiver site: LARCH
Site location: 45.7168 North / 122.2958 West (45∞ 43' 0" N / 122∞ 17' 44" W)
Ground elevation: 3507.22 feet AMSL
Antenna height: 20.00 feet AGL / 3527.22 feet AMSL
Antenna height above average terrain: 2014.78 feet
Distance to K7JDF-9: 30.07 miles
Azimuth to K7JDF-9: 235.11 degrees
Depression angle to K7JDF-9: -1.3790 degrees
Depression angle to the first obstruction: -1.3776 degrees

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ITWOM Version 3.0 Parameters Used In This Analysis:

Earth's Dielectric Constant: 15.000
Earth's Conductivity: 0.005 Siemens/meter
Atmospheric Bending Constant (N-units): 301.000 ppm
Frequency: 144.390 MHz
Radio Climate: 6 (Martitime Temperate, Over Land)
Polarization: 0 (Horizontal)
Fraction of Situations: 50.0%
Fraction of Time: 90.0%
Transmitter ERP: 60 Watts (+47.78 dBm)
Transmitter EIRP: 98 Watts (+49.92 dBm)

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Summary For The Link Between K7JDF-9 and LARCH:

Free space path loss: 109.35 dB
ITWOM Version 3.0 path loss: 139.23 dB
Attenuation due to terrain shielding: 29.87 dB
Field strength at LARCH: 31.14 dBuV/meter
Signal power level at LARCH: -89.31 dBm
Signal power density at LARCH: -114.64 dBW per square meter
Voltage across a 50 ohm dipole at LARCH: 9.80 uV (19.82 dBuV)
Voltage across a 75 ohm dipole at LARCH: 12.00 uV (21.58 dBuV)
Mode of propagation: Single Horizon Diffraction Dominant
ITWOM error number: 0 (No error)

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Between LARCH and K7JDF-9, SPLAT! detected obstructions at:

    45.5129 N, 122.7114 W, 24.53 miles, 813.65 feet AMSL
    45.5128 N, 122.7117 W, 24.55 miles, 830.05 feet AMSL
    45.5076 N, 122.7221 W, 25.17 miles, 771.00 feet AMSL
    45.5075 N, 122.7224 W, 25.18 miles, 774.28 feet AMSL
    45.5074 N, 122.7226 W, 25.20 miles, 774.28 feet AMSL
    45.5072 N, 122.7229 W, 25.21 miles, 784.12 feet AMSL
    45.5071 N, 122.7231 W, 25.23 miles, 784.12 feet AMSL
    45.5070 N, 122.7234 W, 25.24 miles, 807.09 feet AMSL
    45.5066 N, 122.7241 W, 25.29 miles, 813.65 feet AMSL
    45.5065 N, 122.7244 W, 25.30 miles, 853.02 feet AMSL
    45.5064 N, 122.7246 W, 25.32 miles, 866.14 feet AMSL
    45.5063 N, 122.7249 W, 25.33 miles, 866.14 feet AMSL
    45.5061 N, 122.7251 W, 25.34 miles, 869.42 feet AMSL
    45.5059 N, 122.7256 W, 25.37 miles, 885.83 feet AMSL
    45.5058 N, 122.7258 W, 25.39 miles, 889.11 feet AMSL
    45.5056 N, 122.7261 W, 25.40 miles, 908.79 feet AMSL

Antenna at LARCH must be raised to at least 1177.00 feet AGL
to clear all obstructions detected by SPLAT!.

Antenna at LARCH must be raised to at least 23968.00 feet AGL
to clear the first Fresnel zone.

Antenna at LARCH must be raised to at least 5185.00 feet AGL
to clear 60% of the first Fresnel zone.