This a a fork/clone of the famous K6BEZ antenna analyzer.

Directory DDS_sweeper the contains code from K6BEZ

Directory DDS_sweeper2 is DK2JK version that works with the PC software VNA (vna.exe)

Directory HEX contains a working version from DK2JK for his board (not pinout compatible with K6BEZ)

###Different versions/different outputs

DDS_sweeper.ino output

(Frequency,VSWR)

7100000.00,1155

dds_sweeper2_2 output

(Frequency,0,VSWR,FWD,REV)

24000000.00, 0, 1005.56622, 360, 1

The directory VNA contains an exe and the relevant graphic lib

Select you serial port, press sweep and it will automatically sweep for the displayed frequency and display the VSWR

The PC Software (https://github.com/billygr/antenna-analyzer/tree/master/VNA_program_source) is from DG7EAO (http:https://www.dg7eao.de/arduino/antennen-analysator). I did a cleanup from the original source, make sure that it compiles clean using Visual Studio Community 2015 (minor warnings to be solved), switched to en locale, and it works ONLY with dds_sweeper2_2.ino