Thursday, March 16, 2017

A kit in search of a vendor: W8TEE and K2ZIA Antenna Analyzer

An upcoming issue of QST will feature an article describing an antenna analyzer designed by W8TEE and K2ZIA.

The $10 circuit board for the kit is already available for sale by QRPGuys here. Additional required parts are estimated to cost about $55.
This Arduino-based analyzer has a color TFT display that presents antenna data either textually or graphically and can save the data to an SD card and present it as an overlay to compare with another trace after an antenna adjustment is made.

The analyzer covers 1.0 to 30.0 MHz and is pre-configured for the ham bands.

Other unique features would seem to make this an ideal kit to be offered by a club since QRPGuys
TFT screen
has no interest in this other than offering the circuit board. The $55 of parts could probably be obtained much less expensively when bought in larger quantities.

Complete build instructions are downloadable here (4MB pdf) and an operation manual is here (2MB pdf).


  1. Great find. I have a bunch of those AD9850 modules in my junk drawer, and I'd thought about doing this exact same thing with an Arduino. Looks like these guys saved me the trouble. I bought a couple of their circuit boards, and hope to have some fun with this. It's a great time to be a tinkerer.

    1. There's always something new just around the corner in this hobby. I hope you'll post the results of your tinkering to your upcoming(?) blog.