Hi, I am Yordan Strundzhev,
This page was designed for radio
amateurs, students and RF engi-
neers working in the RF Design
area. I look forward to assisting
you with answers to any ques-
tions about this site.
05.03.2007 start web page
12.03.2007 open photo gallery
12.03.2007 PLL synthesizer modul
12.03.2007 USB converter
12.03.2007 Free Schematics added
02.12.2007 Trip to France-photos
05.01.2008 Photos from Bulgaria
web update 02.12.2007
gallery update 05.01.2008
100MHz ... 3GHz PLL Synthesizer
TX - RX for ISM band
USB RS232 - RS485 converter
This Universal Frequency
Synthesizer, from 100MHz to 3000MHz,
is manufactured with discrete integra-
ted circuit HEF4059, HEF4046, HEF4060
and high speed divider UPB1506 on bo-
ard. This is perfect evaluation kit for
education in PLL devices, allowed pro-
gramming with jumpers of any fre-
quency up to 3000 MHz.Channel spa-
cing is programmed also.
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