nyan:link_budget
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| nyan:link_budget [2023/12/10 21:50] – created river | nyan:link_budget [2023/12/11 14:13] (current) – [Free space loss] river | ||
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| Polarisation loss from heal can be calculated. It might also be worth working out losses due to heal and aerial directivity. | Polarisation loss from heal can be calculated. It might also be worth working out losses due to heal and aerial directivity. | ||
| + | |||
| + | ===== Free space loss ===== | ||
| + | |||
| + | < | ||
| + | Distance (km) Distance (nautical miles) Frequency (MHz) Loss (dB) Fresnel r (m) | ||
| + | 1 0.54 434 -85.2 13.1 | ||
| + | 1 0.54 869 -91.2 9.3 | ||
| + | 10 5.40 434 -105.2 41.6 | ||
| + | 10 5.40 869 -111.2 29.4 | ||
| + | 20 10.80 434 -111.2 58.8 | ||
| + | 20 10.80 869 -117.2 41.5 | ||
| + | 30 16.20 434 -114.7 72.0 | ||
| + | 30 16.20 869 -120.8 50.9 | ||
| + | 40 21.60 434 -117.2 83.1 | ||
| + | 40 21.60 869 -123.3 58.7 | ||
| + | 50 27.00 434 -119.2 92.9 | ||
| + | 50 27.00 869 -125.2 65.7 | ||
| + | 60 32.40 434 -120.8 101.8 | ||
| + | 60 32.40 869 -126.8 71.9 | ||
| + | |||
| + | </ | ||
| + | |||
| + | ===== Bibliography ===== | ||
| + | |||
| + | * [[https:// | ||
| + | * [[https:// | ||
nyan/link_budget.1702245053.txt.gz · Last modified: 2023/12/10 21:50 by river