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Saturday, 31 December 2016

The VLNA, Oh Boy!


I think I have finished the build of the VLNA for 13cm; having constructed the project I am wishing I had bought a ready built and aligned unit. This was the hardest project to date, mainly because of the very tiny components. I really struggled to get the input matching network parts in place - and have no test gear to actually measure the return loss or noise figures of the final build.

It looks like this:

You can see the input network components in the image above; it kind of looks like the instructions from G4DDK @DXING, but I have no means to actualy measure or test the input return loss.

Lets see.


  1. wish you best of health and happiness in the new year 2017.

    we hope and aspire for lots of experimentation and successes in new designs.

  2. Thanks Sarma - always good to hear from you, all the best for 2017! Mark.