Difference between revisions of "Radiasi Daya Pancar"

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Contoh perhitungan daya [[Effective Isotropic Radiated Power]] ([[EIRP]])
 
Contoh perhitungan daya [[Effective Isotropic Radiated Power]] ([[EIRP]])
{|
+
{| border="1" cellpadding=2 style="border-collapse: collapse"
|TX Power
+
!TX Power
|Power Gain / Loss
+
!Power Gain / Loss
|Power
+
!Power
|Antenna gain
+
!Antenna gain
|EIRP
+
!EIRP
|Legal?
+
!Legal?
|(Yes / No)
+
!(Yes / No)
 
|-
 
|-
 
|1 Watt
 
|1 Watt

Revision as of 08:41, 27 May 2009

Pemerintah maupun konsensus komunitas kemungkinan besar akan menentukan batasan-batasan maksimum dari daya yang boleh di pancarkan dari antenna. Daya yang dipancarkan dari antenna dapat di ukur dengan dua (2) cara yaitu:

Effective Isotropic Radiated Power (EIRP) dalam dBm
=  daya di input antenna [dBm] + penguatan antenna [dBi]
Effective Radiated Power (ERP) dalam dBm
=  daya di input antenna [dBm] + penguatan antenna [dBd]

Effective Isotropic Radiated Power (EIRP) biasanya kita gunakan. Kita biasanya membatasi EIRP sekitar 36dBm. Di Indonesia, kita mengadopsi batasan EIRP yang berbeda bagi sambungan Point-to-Point (P2P) dan sambungan Point-to-Multi-Point (P2MP), menjadi 36 dBm dan 30 dBm.

Contoh perhitungan daya Effective Isotropic Radiated Power (EIRP)

TX Power Power Gain / Loss Power Antenna gain EIRP Legal? (Yes / No)
1 Watt (+30 dBm)
29 dBm 6 dBi 35 dBm
Yes
100 mW (+20 dBm)
14 dB Amplifier 34 dBm 8 dBi 42 dBm
No
25 mW (+14 dBm)
14 dB Amplifier 28 dBm 8 dBi 36 dBm
Yes




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