This is a guide for the assembly and use of the Version 2 “Pocket EMC Debug Probe” from Unit 3 Compliance.
0805 resistors for R1 = 470R and R2 = 10k, gives 450 ohm parallel combination. This is required for the 10:1 into a 50 ohm input.
0805 capacitor C1 470pF to 10nF, C0G/NPO dielectric, 50V. For the AC coupling of the signal.
Recommendations for the probing pin (socket strip or a bit of wire)
Suitable ferrite cores for the current transformer
90 degree options for the B-field loop probe and E-field capacitive probe (on E-field probe snap off – scrape copper on each side of slot before you snap off the end to enable soldering)