DIY 1GHz* Active Probe For Under 20$**

So, you’re an electronics hobbyist and want a 1GHz active probe, or a professional and tired of blowing your 2000$+ active probe in sketchy circuits when all you wanted to know are the whereabouts of some RF-signal? Then stay with me!! This Instructable will show you how to build a 1GHz Fet-based Active Probe, the Fetprobe, for about 10$*, provided you have access to an electronics lab. It is based on an Elektor-magazine article (see the pdf’s addendum, section literature in my thesis) beside some other designs. However, as topic of my bachelor-thesis I wanted to find out how good these designs really are and how far one can push them.”