Last update: 07.06.2025

• COMING UP / UNDER DEVELOPMENT
  Inovonics 531 FM Modulation Analyzer clone
  Inovonics 718 Stereo Coder clone
  RDS Coder Pira P132
  RDS Coder Pira MRDS1322
  Antenna Rotator Controler PWM (YAESU)
  24GHz RF signal generator & TG downconverter
  76GHz transverter FILTRONIC TA402/403
  Tracking Generator 3-26.5GHz for HP8563A
  
  
  
• TRANSCEIVER
  DDS HF TRANSCEIVER CW/SSB with AD9851
  144-146MHz FM
  28MHz All Mode (QRP) with AD9951
  33MHz FM*
  SDR LT5517 & SI570
  PIC-A-STAR HF TRANSCEIVER
  
  
  
• TRANSVERTERS HF...UHF
  144/28MHz (first transverter)
  144/28MHz Javornik
  50-70/28MHz
  432/28MHz
  
  
  
• SHF - MICROWAVES
  LNB PLL for Eshail QO-100 downlink 10GHz
  Eshail OSCAR-100 transverter
  Eclipse Stratex 11GHz
  Alcatel ODU 7GHz modified to 5.7GHz
  Alcatel ODU 11GHz modified to 10GHz
  Wavelab ODU 23GHz modified to 24GHz
  CBNL VS2 10GHz transverter(IF Board included)
  2300MHz/144MHz transverter
  5760MHz/144MHz transverter
  5760MHz/144MHz 1W Portable transverter v5
  23GHz Eclipse XCVR info
  
  
  
• SHF - IF BOARDS FOR MODIFIED ODUs
  IF Converter/Controller for Alcatel ODU 7/11GHz
  IF Converter/Controller for Wavelab ODU 24GHz
  
  
• MEASUREMENT INSTRUMENTS
  Wobbler AD9851 (OM3CPH)
  Wideband SWR-meter
  Frequency Meter 1GHZ
  Function generator ATMEGA16
  VHF-UHF antenna analyser
  PSK IMD Meter
  Tracking Generator 1,5GHz
  Noise Figure Meter
  SDR Noise Figure Meter - CANFI
  Tube Tester
  2 Tone VHF - IMD Test
  HF Generator for IMD Testing
  SWR & Power Meter PIC16F877
  VNA IZ1PMX - 180MHz with AD9951
  RIGOL DS2072 Spectrum Analyzer
  ESR/Capacitance Meter
  HP8494G & HP8495G Programmable Attenuator
  ADF5000/HMC438 prescaler 18GHz
  ADF41513 prescaler 26GHz
  GPS Disciplined Oscillator (reference 10KHz)
  Universal GPSDO ADF4001/TU60 (reference 10KHz)
  GPSDO VE2ZAZ (reference 1pps)
  Sun/Moon Digital Noise Meter
  
  
  
• RADIO INTERFACE
  Yaesu FTL2011 SM & Interface
  Midland Radio Interface / Software
  Motorola interface with transistors
  Motorola interface with MAX232
  ICOM IC-F12 SM & Interface
  Kenwood Programming
  Spectrum Analyser to PC
  
  
  
• PLL, DDS, VFO
  SDA2121-2 PLL I²C ARDUINO
  LMX2582 PLL
  STELLEX YIG PLL - Standalone LCD Controller
  LMX2332 25/27MHz reference for LNB PLL
  LMX2324 PLL (vers.1)
  LMX2324 PLL UHF (vers.2)
  LMX2326/PIC16F84 PLL 2256MHz
  LMX2330/PIC16F628 - Prescaler 100/1000 2.5GHz
  LMX2330/Arduino - Prescaler or PLL up to 2.5GHz
  SA7025/TRF2050 FRACTIONAL PLL
  SI5351A PLL Oscillator & Arduino
  SI5351A Quartz Replacement Oscillator
  AD9951 DDS for 28MHz
  Clock Oscillator for DDS ICs
  REVERSE DDS - Lock Oscillator
  VHF PLL 4059
  DDS(VFO) drive PLL for 144MHz
  Multi PLL HF (21-25MHz)
  
  
  
• QRO
  2KW LDMOS amplifier for 144MHz
  2 X GU74 QRO 144MHz
  Triode/Tetrode Board
  
  
  
• uCONTROLLER APPLICATIONS
  ISD1760 Voice Keyer & Roger Beep
  Morse ID repeater
  DIGITAL SD RECORDER
  SPI FLASH PROGRAMMER (LPT)
  USBTiny MKII Programmer
  Arduino Rotator Controller
  LVB Tracker Rotator Interface
  I2C Address Scanner
  Roger beep for Voice Keyer BX-184
  Air compressor automation
  
  
  
• ANTENNA
  DK7ZB yagi for 144MHz
  137MHz Quadrifilar
  
  
  
• SOFTWARE
  RFSim99
  Coil calculator
  Matching RF PA
  Microstrip Simulator
  PUFF 2.1 Microwave CAD
  
  
  
• RADIO MODES
  WEFAX NOAA
  SSTV Demo
  
  
  
• FM BROADCASTING
  Professional Stereo Coder - DB 9506 Clone
  Various digital sampling Stereo Coders
  Stereo coder "DAVID-3 CLONE" 32X
  Stereo coder "ELENOS ELC40" 16X
  Stereo coder "MC1496" Analog
  
  
  
• OTHER STUFF
  Sequencer Rx-Tx
  ATF54143 preamplifier 144MHz
  PGA103+ Preamplifier
  High Current 13,8V Linear Power Supply
  GRAPHIC EQUALISER SSB
  AS5040/AS5045 ROTARY ENCODER
  RF Amplifiers with good IP3
  Motorola P200 battery eliminator
  DELTA DPR 2900B-48 PSU Modification
  HP HSTNS-PL33 PSU Modification
  Time Base Oscillator
  
  
  
• DOCUMENTATION
  HP8757C LCD Retrofit
  Marconi 2440 frequency counter - OCXO upgrade
  R35T
  TR-0614 Generator
  Elektromekano M1250 HF RX
  HP8558B & HP182T SA
  ТЕСТ & X1-50
  Shendun SD506
  YO4MM Antenna Book
  KENWOOD TK260/270/278
  KENWOOD TK880 - programming and modifications
  Yaesu FT847 Improvements
  ZOPAN PFL-35
  ROMANIAN Rx/Tx
  XJ4241 Oscilloscope
  DCI-145-2H Band Pass Filter
  Motorola P200 Low Band - Out of Band Extension
  UPS APC SUA3000RMI2U
  HP8648 GPIB (HP-IB) Remote Control
  HP5386A Backlight modification
  HP8673C 0.05-18.6GHz RF Generator