miniVNA - HF & VHF Antenna Analyzer   miniVNA: Miniature, PC based HF/VHF Antenna analyzer           The miniVNA is a tiny antenna analyser working from 0.1 to 180MHz. It is connected to a computer with just one USB cable, power is supplied over USB. An internal option for serial (RS-232) communications is available as well. The miniVNA allows you to quickly analyze any antenna over a user defined frequency range between 0.1 and 180MHz. You see at a glance where the antenna is resonant, what the SWR is and what the return loss is. The best (minimal) SWR frequency is automatically found and displayed. Two markers can be freely placed within the shown frequency range and measure impedance [Z], resistance [R], phase [ω] and other values at these points. Other functions of the mniVNA allows you to measure cable losses, cable length, transmission, bandwidth and quality of filters etc. With it's extremely small size, low power consumption and easy to use software interface the miniVNA offers a perfect device for HF/VHF measurements for the radio amateur. Whether at home in your shack or in the field during a fieldday or expedition. Size 90 x 85 x 25mm, ConnectorsS BNC.   Software is available for Windows™ and Linux™ operating systems.     Download:   VNA/J software from Dietmar DL2SBA (supports XP, Windows7, Linux, Mac) require Java installed , follow the instruction from the latest Dietmar manual .  The java way for the miniVNA - Java software VNA/J from Dietmar DL2SBA  The Software from Dietmar requires the Java runtime installed on your computer,  Check the web site http://dl2sba.wikidot.com/vna-j-download for updated version. 1. Install java runtime in your PC, download the latest from http://www.java.com/en/ 2. Copy the Jar file into HDD 3. Copy the RXTXserial in accordance to your OS (32 or 64 bit) into the same directory of the jar file 4. Run the jar File.    Alternative software IG_miniVNA (Windows XP) Software from AC6LA - Zplot         Driver : (miniVNA and miniVNA PRO use USB chip from FTDI - dowload here the latest driver available) USB DRIVER Windows Server 2008 R2 Windows 7 Windows 7 x64 Windows Server 2008 Windows Server 2008 x64 Windows Vista Windows Vista x64 Windows XP Windows XP x64 Windows 2000 Windows Server 2003 Windows Server 2003 x64