KOMUNITAS HOBBIYST ELEKTRONIKA - KHE
Diskusi Elektronika => Pemancar (Transmitter) => Kategori Radio => Enkoder Stereo (MPX) => Topik dimulai oleh: purwanto-amm pada Maret 22, 2011, 03:56:09 PM
-
Hasil menghayal, ada yg masih inggat stereo encoder jaman majalah ELEX ini:
(https://lh4.googleusercontent.com/_U6DgWGYZA1U/TOYqqlTngaI/AAAAAAAAAas/7quVGd_e3-o/s1600/STEREO%2520ENCODER%25200.jpg)
Nah sy modifikasi bagian Clock Generatornya yg pake MC1310 menggunakan AVR seperti ini:
(https://lh4.googleusercontent.com/_U6DgWGYZA1U/TYhije4i07I/AAAAAAAAAyI/2aT76mh1l_E/s720/2x.jpg) (https://lh4.googleusercontent.com/_U6DgWGYZA1U/TYhije4i07I/AAAAAAAAAyI/2aT76mh1l_E/s1600/2x.jpg)
dimodif pake yg ini AVR yg ada di : http://www.cappels.org/dproj/FM_MPX_STEREO/SIMPLE%20FM%20STEREO%20MULTIPLEX%20ENOCDER%20CIRCUIT.html
File HEX
ATTINY12
:020000020000FC
:1000000000C002E007BB08BBC19ABA98B89A08E1E1
:100010000A95F1F7000000000000BA9AB89807E1CD
:100020000A95F1F70000000000000000C198BA989E
:10003000B89A000008E10A95F1F700000000BA9AAA
:0E004000B89807E10A95F1F700000000DDCF47
:00000001FF
AT90S2323
:020000020000FC
:1000000000C00FED0DBF02E007BB08BBC19ABA9854
:10001000B89A08E10A95F1F7000000000000BA9ACA
:10002000B89807E10A95F1F7000000000000000011
:10003000C198BA98B89A000008E10A95F1F7000053
:100040000000BA9AB89807E10A95F1F7000000009D
:02005000DDCF02
:00000001FF
-
Filter yg bagus perpaduan L dan C yang tepat... perhatikan
Sinnyal 19KHZ
(https://lh4.googleusercontent.com/_U6DgWGYZA1U/TYiWhzbUwtI/AAAAAAAAAyk/w4mC-p8G3Zs/s640/OSC%2019Khz.jpg)
MPX 38Khz
(https://lh5.googleusercontent.com/_U6DgWGYZA1U/TYiWp3uhLEI/AAAAAAAAAyo/ImMSAqS-awk/s640/OSC%2038Khz.jpg)
Warna Biru sebelum Masuk Filter, Warna kuning Setelah masuk Filter
-
jadi penasaran mo pake proteus .... kasi link nya dong yang lengkap ... hehewhe
-
sama kang ganteng jd pengen belajar pk proteus ni....
-
Khayalan kang Pur memang ampuh !!! ide1
-
stereo coder pertama kali saiya buat, hasil nya bagus sekali, desis 19kc nya lembut sekali, emang filternya ok banget, setelah itu mulai buat 4xoversampling, dengan control crosstalk dari rohde yaitu membalikkan phasa L+R, diumpan ke summing amp top1 top1 top1