Online Calculation Java Script
Java, Compact & Effective, ((-,O))


To remove, click here

TO-1 / B Tools 14 oct 2007 PC1L : betreffende proefexamen TU Delft ET2505-D2_1_oef


Online Berekening van een gedeelte uit het proefexamen ET2505-D2

MHz

Satelliet Frequentie
km Actuele Satelliet Afstand
dBm Actuele Satelliet Power
dBi Satelliet Antenne Gain
dBi Grondstation Antenne Gain
K = C + 273 Sky Temperatuur
K = C + 273 Kamer Temperatuur
dB Systeem Ruis Getal
Hz Ontvanger Band Breedte
     

dB Traject Demping
dBm Ontvangen Signaal
dBm Ontvangen Totaal Ruis
dB S R V Signaal Ruis Verhouding
     
 

73 ((-,O)) PC1L

   


     
     
   

55 73 ((-,O)) PC1L.
     
     

 

[(Psatoutput+GainSatAntenna+GainGroundAntenna)-10log{(4.pi.rho.f/300)kwadraat}]-10log[k.{(Tamb.10totdemachtFT/10-1)+Tsky}.B]

Ofwel :

{(Psatoutput+GainSatAntenna+GainGroundAntenna)-(32.4+20logf+20logrho)}-
[10logk+10log{(Tamb.10totdemachtFT/10-1)+Tsky}+10logB]

en omgezet in JS :

<script type="text/javascript">function calculatedBm1(form){ result=(parseFloat(form.aa.value + parseFloat(form.bb.value)-parseFloat((32.4+(20*( Math.LOG10E*Math.log( form.satf.value)))+(20*(Math.LOG10E*Math.log(form.sla.value )))))+ parseFloat ( form.dd.value ) -(( 10*( Math.LOG10E * Math.log( 0.0000000000000000000138 )))+(10*( Math.LOG10E * Math.log( form.frequency.value)))+(10*( Math.LOG10E*Math.log((parseFloat (form.at.value)*((Math.pow(10,(form.ct.value/10)))-1)+(parseFloat(form.pout.value ))))));form.dBm1.value=Math.round( result*100000)/100000;</script>