Penulis Topik: Merakit Transceiver 2m (144 MHz) LMX2306+MC3362  (Dibaca 6704 kali)

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Offline dian

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Merakit Transceiver 2m (144 MHz) LMX2306+MC3362
« pada: November 28, 2010, 04:14:16 AM »
Komponent Utama

1. LMX2306 (550MHz PLL with 18 bit N Counter)
2. MC3362 Narrow Band FM Receiver atau MC13135 (letak pin berbeda)
3. ATMega8
4. rotary encoder

Awalnya saya ingin mengaplikasikan DDS pada unit ini, akan tetapi untuk DDS yang mudah di operasikan dalam mode FM (AD9854) harganya lumayan mahal untuk sekedar hobi dan rasa ingin tahu. Akhirnya pilihan jatuh pada IC PLL yang bisa di peroleh dengan harga "tidak terlalu mahal", support hingga 500Mhz serta N counter yang besar (18 bit) sehingga memungkinkan untuk bekerja dengan 5Khz Frekwensi step.

ATmega8+2x16 LCD+rotary encoder sebagai control dan sarana interaksi alat dengan pemakai.
Front End Amp menggunakan BF960/BF961,

Pada blok diagram di bawah ada kesalahan pada text VCO untuk bagian transmitter, seharusnya tertulis 140-150Mhz (bukan 150.7 - 160.7 MHz)




Pada saat merakit rotary encoder yang di harapkan belum tiba, sehingga saya menggunakan stepper motor bekas disk drive sebagai pengganti.. tidak begitu mulus stepnya tapi masih bisa digunakan, dengan opamp LM358 sinyal dari rotary encoder di kuatkan dan sedikit trik di firmware membuat ini menjadi menarik, mungkin pada kesempatan berikutnya saya akan explore lebih jauh.




berikut adalah tampak bagian dalam, sedikit berantakan untuk tambahan PCB nya





bersambung
« Edit Terakhir: November 28, 2010, 10:46:59 AM oleh dian »

Offline cungkrinx

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Re:Merakit Transceiver 2m (144 MHz) LMX2306+MC3362
« Jawab #1 pada: November 28, 2010, 11:11:02 AM »
Di tunggu kelanjutannya Pak Dian.... :)
untuk spare partnya mudah didapat  ga ya di pasaran...?? ???

Offline purwanto-amm

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Re:Merakit Transceiver 2m (144 MHz) LMX2306+MC3362
« Jawab #2 pada: November 28, 2010, 11:48:29 AM »
mas Dian nyari LMX2306 dimanah yahhhh .... ???
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Offline dian

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Re:Merakit Transceiver 2m (144 MHz) LMX2306+MC3362
« Jawab #3 pada: November 28, 2010, 12:01:07 PM »
*. untuk LMX2306 saya beli 2 tahun lalu dari Digikey,
tapi sekarang digikey agak2 susah di order RF component, oder DDS saya ditolak katanya dilarang pemerintah US untuk jual ke Indonesia (jadi benernya mereka negara paling diskriminasi), akan tetapi baru saja saya check di ebay masih ada yg jual

*. MC3362 bisa di ganti dengan MC13135 (ini ada di lokal bandung)
*. BF960  (ini juga ada di lokal bandung)

untuk skema nya mohon bersabar ya, saya paling malas menggambar skema,  biasany pake skema "saka" = sakainget
« Edit Terakhir: November 28, 2010, 12:33:17 PM oleh dian »

Offline purwanto-amm

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Re:Merakit Transceiver 2m (144 MHz) LMX2306+MC3362
« Jawab #4 pada: November 28, 2010, 12:09:07 PM »
untuk skema nya mohon bersabar ya, saya paling malas menggambar skema,  biasany pake skema "saka" = sakainget

 :D  :D  :D  :D
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Offline cungkrinx

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Re:Merakit Transceiver 2m (144 MHz) LMX2306+MC3362
« Jawab #5 pada: November 28, 2010, 01:03:58 PM »
*. untuk LMX2306 saya beli 2 tahun lalu dari Digikey,
tapi sekarang digikey agak2 susah di order RF component, oder DDS saya ditolak katanya dilarang pemerintah US untuk jual ke Indonesia (jadi benernya mereka negara paling diskriminasi), akan tetapi baru saja saya check di ebay masih ada yg jual

*. MC3362 bisa di ganti dengan MC13135 (ini ada di lokal bandung)
*. BF960  (ini juga ada di lokal bandung)

untuk skema nya mohon bersabar ya, saya paling malas menggambar skema,  biasany pake skema "saka" = sakainget

 8) 8) 8)

Offline dwi suk marwanto

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Re:Merakit Transceiver 2m (144 MHz) LMX2306+MC3362
« Jawab #6 pada: Maret 24, 2011, 10:12:27 PM »
minta skemanya mas
xxxxx
tgrmks :-X

Offline bangkal64

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Re:Merakit Transceiver 2m (144 MHz) LMX2306+MC3362
« Jawab #7 pada: November 24, 2012, 02:42:32 PM »
masnya cuma pamer doank, ngak bagi skemanya ngak bagi frimware  >:(  >:(  >:(

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