tag:blogger.com,1999:blog-73669862544349333282023-11-15T06:32:50.492-08:00Aris IrvaniAnonymoushttp://www.blogger.com/profile/09546655425958440749noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-7366986254434933328.post-57065475226446830612014-02-26T16:48:00.000-08:002014-02-26T17:17:16.651-08:00<div dir="ltr" style="text-align: left;" trbidi="on">
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Rangkaian wireless microphone ini menggunakan sumber
tegangan DC 3 volt dari 2 buah batere AA sehingga ekonomis dalam penggunaannya.
Rangkaian wireless microphone 3 volt ini menggunakan microphone jenis elektret
(kondenser mic). Rangkaian wireless microphone 3 volt ini dibangun dari 3 buah
transistor 2N3904 dan beberapa komponen pendukung. Wireless microphone ini
bekerja di range frekuensi radio FM 88 MHz – 108 MHz. Gambar skema dan daftar
komponen untuk membuat rangkaian wireless microphone dapat dilihat pada gambar
berikut.</div>
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<br /></div>
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<b>Rangkaian Wireless MIcrophone 3 Volt</b></div>
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<span style="mso-no-proof: yes;"></span> <img alt="http://skemarangkaianpcb.com/wp-content/uploads/2012/07/Rangkaian-Wireless-Microphone-3-Volt.jpg" class="decoded" src="http://skemarangkaianpcb.com/wp-content/uploads/2012/07/Rangkaian-Wireless-Microphone-3-Volt.jpg" /></div>
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<br /></div>
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Rangkaian wireless microphone pada gambar diatas terdiri
dari 3 bagian utama sebagai berikut. Bagian penguat microphone, bagian in
berfungsi menguatkan sinyal audio dari microphone elektret (kondenser
microphone) agar dapat dimodulasi dengan sinyal pembawa (frekuensi carier).
Rangkaian penguat microphone ini dibangun oleh konfigurasi transistor Q1.
Bagian pembangkit frekuensi carier, bagian ini merupakan oscilator yang
membangkitkan frekuensi pembawa (frekuensi carier) sekaligus sebagai mixer
antara sinyal audio dan gelombang pembawa untuk menghasilkan frekuensi
termodulasi dengan teknik modulasi FM. Sinyal termodulasi ini kemudian
dikuatkan oleh bagian penguat FM. Rangkaian oscilator ini dibangun oleh
rangkaian transistor Q2. Bagian penguat radio FM, bagian ini berfungsi untuk
menguatkan sinyal termodulasi Fm dari mixer untuk dipancarkan melalui antena
pemancar. Rangkaian penguat FM ini adalah penguat tegangan kelas C yang
dibangun oleh transistor Q3. Output dari bagian penguat FM ini adalah gelombang
radio FM yang dipancarkan melalui antena. Untuk membuat rangkaian wrieless
microphone 3 volt ini dapat dibuat menggunakan PCB pada gambar berikut. </div>
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<br /></div>
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<br /></div>
<br />
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<a href="https://www.blogger.com/blogger.g?blogID=7366986254434933328" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"></a><a href="https://www.blogger.com/blogger.g?blogID=7366986254434933328" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"></a><b>PCB Rangkaian Wireless Microphone 3 Volt</b></div>
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<img alt="http://skemarangkaianpcb.com/wp-content/uploads/2012/07/PCB-Rangkaian-Wireless-Microphone-3-Volt.jpg" class="decoded" src="http://skemarangkaianpcb.com/wp-content/uploads/2012/07/PCB-Rangkaian-Wireless-Microphone-3-Volt.jpg" /></div>
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Antena untuk rangkain wireless microphone 3 volt ini dapat
dibuat dengan kawat email dengan panjag ± 20 cm yang digulung membentuk
induktor. rangkaian mic wireless, rangkaian radio fm, skema audio mixer,
merakit audio mixer, merakit mixer, rangkaian wireless, rangkaian radio, skema
rangkaian mixer audio, skema rangkaian pcb radio, rangkaian konverter 3volt to
9 volt menggunakan transistor.</div>
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