ABCDEFGHIJKLMNOPQRSTUVWXYZ
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Edit the green cells as appropriate.
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Frequency (MHz)80000
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Distance (km)49709.69538miles
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Free space path loss (dB)#REF!
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Tx Power (dBm)10
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Tx Gain (dBi)43
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Freespace Loss (dB)#REF!Loss per km (from next sheet)0.8
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Atmosphere Loss (dB)64000AtmosphereAtmosphere loss64000
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Rx Gain (dBi)43
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Received Signal (dB)#REF!
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Target receive-40Total Link Budget136
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Calculated receive#REF!
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Margin#REF!
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Loss per km (from next sheet)13Rain
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Rain loss (dB)1040000
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Loss Margin#REF!
How many " (25 mm) per hour you can take before crossing threshold
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Most of the US can use this page as a reference to see how often they receive that much rain.
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https://hdsc.nws.noaa.gov/hdsc/pfds/
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Change the data type to precipitation intensity and choose a station.
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To determine bursts, read in the 5 minute duration row. Scan across to find out how often (by column) you'll receive however much rain
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Measured by value of inches of rain per hour measured on a 5 minute interval
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Radio specs available here:
https://docs.google.com/spreadsheets/d/1rxpeVcx-98ZsU_Fc12AxVaBOp3I6MgDatccQjjI63-Y/edit?usp=drivesdk
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