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playground:playground [2019/07/10 14:36] – [Kabellängen] fachetplayground:playground [2023/04/04 16:21] (current) – external edit 127.0.0.1
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-~~NOCACHE~~ +====== PlayGround ======
-====== Kabellängen ====== +
-<html> +
-<!-- präsentiert von kostenlose-javascripts.de --> +
-<script type='text/javascript'> <!-- +
-function log10(l){ +
-   return Math.log(l)/Math.log(10); +
-} +
- +
-function berechnen() { +
-   var fd, kl, kd, ra, rfd, g, ge; +
-   var f = document.form.f.value; +
-   var a = document.form.a.value; +
-   var l = document.form.l.value; +
-   var d = document.form.d.value; +
-   +
-   f = f.replace(/,/, "."); +
-   a = a.replace(/,/, "."); +
-   l = l.replace(/,/, "."); +
-   d = d.replace(/,/, "."); +
-   +
-   fd = 20 * log10(f * Math.pow(10, 9)) + 20 * log10(a) - 147,55; +
-   kl = l; +
-   kd = kl * d; +
-   ra = a - kl; +
-   rfd = 20 * log10(f * Math.pow(10, 9)) + 20 * log10(ra) - 147,55; +
-   g = kd + rfd; +
-   ge = fd - g; +
-   +
-   fd = fd.toFixed(2) +
-   rfd = rfd.toFixed(2) +
-   g = g.toFixed(2) +
-   ge = ge.toFixed(2) +
-   +
-   document.form.fd.value = fd; +
-   document.form.kl.value = kl; +
-   document.form.kd.value = kd; +
-   document.form.ra.value = ra; +
-   document.form.rfd.value = rfd; +
-   document.form.g.value = g; +
-   document.form.ge.value = ge; +
-} +
-//--> +
-</script> +
-<form name="form"> +
-<input name="f" /> Frequenz in GHz <br /> +
-<input name="a" /> Gesamtabstand in m  <br /> +
-<input name="l" /> Kabellänge in m  <br /> +
-<input name="d" /> Kabeldämpfung pro m in dB <br /> +
-<input type="button" name="submit" value="berechnen" onclick="berechnen();"> <br /> +
-<input name="fd" value="0" disabled="disabled"> Freiraumdämpfung Gesamtabstand<br /> +
-<br /> +
-<input name="kl" value="0" disabled="disabled"> Kabellänge <br />   +
-<input name="kd" value="0" disabled="disabled"> Kabeldämpfung <br /> +
-<input name="ra" value="0" disabled="disabled"> Restabstand<br /> +
-<input name="rfd" value="0" disabled="disabled"> Freiraumdämpfung Restabstand<br /> +
-<input name="g" value="0" disabled="disabled"> Gesamtdämpfung<br /> +
-<input name="ge" value="0" disabled="disabled"> Gewinn<br /></form> +
-<br /> +
-</html>+
  

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playground/playground.1562769406.txt.gz · Last modified: 2019/07/10 14:36 by fachet