Prior to combining the three boards into Jawbreaker, I successfully tested both transmit and receive paths from the antenna all the way to the microcontroller, but the "last mile" USB communication from the microcontroller to the host computer was still incomplete. This week I plan to finish validating the design and ordering PCBs of the next likely final revision. Since my previous postI tested multiple wideband front-end designs, eventually settling on one called Licorice. ![]() Jawbreaker integrates three separate designs into a single circuit board, making it smaller and easier to handle. It is completely built including a couple of minor correctionsand I am about three-quarters of the way through validating the design. ![]() I had assembled it just prior to leaving for the conference.
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