Differences

This shows you the differences between two versions of the page.

--- playground:playground [2014/09/23 09:19] – leuenberger
+++ playground:playground [2019/07/10 14:36] – [Kabellängen] fachet
@@ Line 1: / Line 1: @@
-====== NetModule Testpage  ======
+~~NOCACHE~~
-===== Summary =====
+====== Kabellängen ======
-This is the summary of the test page.
+<html>
-===== Motivation =====
+<!-- präsentiert von kostenlose-javascripts.de -->
-The motivation is to test the wiki
+<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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