YO3DAC - VA3IUL    

Iulian Rosu

RF Technical Articles

"To invent, you need a good imagination and a pile of junk" - Thomas Alva Edison (1847-1931)

RF BASICS       - Understanding Noise Figure    - Smith Chart Theory    - LNA Design    - RF Power Amplifiers    - Phase Noise in Oscillators     - RF Mixers    - Automatic Gain Control (AGC) in Receivers    - Bias Circuits for RF Devices    - How to measure the impedance of a strip line    - RF System Formulas    - High Impedance Matching with a Network Analyzer	HOMEBREW Transceivers and RF Circuits       - Dual - Band Transceiver for 1.3GHz and 2.3GHz     - High Performance HF Transceiver     - 144MHz Band - All Mode Transceiver      - 30m Band - All BJT Transceiver     - 50MHz SSB/CW Transceiver     - Very Low Phase Noise VFO         - Homebrew RF Circuit Design Ideas ...more than you can think...
HOMEBREW RF TEST CIRCUITS         - 100MHz Spectrum Analyzer     - Inductance meter with 1nH resolution     - RF Power Meter    - HF Antenna Analyzer (3MHz to 30MHz)    - 2.4GHz ISM Spectrum Analyzer Monitor	MICROWAVE CIRCUITS       - Multiband low power beacon for:             144MHz, 432MHz, 1296MHz, 2305MHz     - High Frequency LNA Schematics     - High Frequency VCO Design and Schematics
RF SOFTWARE       - RFSim99 - RF Design Software     - AppCAD - Agilent RF Design Tool     - WinSmith - Smith Chart software     - Transmission Line Calculator - AWR     - 4nec2 - Free 2D and 3D Antenna Software     - AADE - Free RF Filter Design     - Qucs - Free RF Circuit Simulator     - Nuhertz - Free Filter Software     - LTspice - Free Spice Simulator     - Sonnet Lite - Free EM Software     - Feko Lite - Free EM Software     - Ansoft SV - Free RF and EM Software     - TonneSoftware - Free RF Software's     - SMWLink - Free MW Link and Satellite Software	ANTENNA and PROPAGATION          - PIFA - Planar Inverted F Antenna     - Wire Antennas for Ham Radio     - Small Antennas for High Frequencies     - Antenna Types and Antenna Patterns     - Basics of Radio Wave Propagation
ICOM IC-7000 Related Articles     - How to fix the IC-7000 audio noise (hiss)     - How to install a Collins Mechanical filter in IC-7000 transceiver     - UHF to VHF TV Converter for ICOM IC-7000     - 433MHz ATV Transmitter and RX Converter for ICOM IC-7000
My Radio Station     - HF - KENWOOD TS-870S, ICOM IC-7000 (service manual - pdf 10Mb), ICOM IC-706MKIIG (service manual - pdf 13Mb)     - 50MHz - TS-870S + 50MHz Transverter, IC-7000, IC-706MKIIG     - 144MHz - TS-870S + 144MHz Transverter, IC-7000, IC-706MKIIG     - 432MHz - TS-870S + 432MHz Transverter, IC-7000, IC-706MKIIG ; TH78A     - 1296MHz - TS-870S + 1296MHz Transverter     - 2300MHz - TS-870S + 2300MHz Transverter

 

 

About me                                                                                                Leo Tiger

    QTH - KN34CK Bucharest (new), (old), Romania, Canada                                                                        

    Amateur Radio - Since 1978 - First Class CEPT License, and Canadian Advanced License.

    Interests - Homebrew amateur radio equipment (up to 10GHz), CW and new modes of wireless communications.

    - "Circuits for Radio Amateurs"  (Montaje pentru Radioamatori)

    - University Politehnica of Bucharest  -  Faculty of Electronics and Telecommunications.

My Links

• Dubus Magazine - Archive collection 1982 - 1992

• Hyper - Microwaves Information Magazine - Archive collection 1996 - 2007 (in French)

• VK5EME home page - Projects/Downloads/Data Sheets

• "Crystal Sets to Sideband" by F. Harris K0IYE - A "must to read" guide to building radios

• YO3DAN - Personal homepage

• The real inventor of Morse code - Alfred Vail  

• Wireless Books - Collection of Wireless e-Books

• ARRL - Antenna Handbook 2005

• ARRL - Handbook 2006, ARRL - Handbook 2005

• FUNKAMATEUR Magazine - 1995, 1996, 1997, 1998, 1999

• TEHNIUM - Electronics Magazine - Archive collection 1971 - 2001 (in Romanian)

Romanian Amateur Radio Federation
Radio Amateurs of Canada

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    ...this page is always in construction...                                                           

In the future you can find here a lot of home-brew stuff and technical articles...                Thanks for your visit...          
                                                                                                                                 
                                                                                                                                           73's from Iulian

You are visitor number since 14/nov/1999 

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