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![]() "Reg Edwards" wrote in message news ![]() Reflection loss can vary from zero to infinity; depending on the material and angle of incidence. ==================================== Yes I know. That's obvious. But what I would like to know is a typical or average value, or a range of most likely expected values found in practice. Some experienced person must know! Needed to crudely ESTIMATE ionospheric multi-hop path loss. Ground reflection losses are a small proportion of the total path loss but not small enough to be neglected. Just a whole number of decibels per reflection will do please. --- Reg. Some approximate examples at 7 MHz with angles of incidence from 0 - 40 degrees: Sea Water 0.2 dB Rocky Ground 5 dB Average Gnd. 2 dB Frank |
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