Wasted $150 on a fancy multimeter autoprobe kit...

I thought buying that Fluke autoprobe kit would speed up my troubleshooting on Cessna 172s but it kept giving false readings on the comm antennas. After 2 days of chasing ghosts, I found out the probe was picking up interference from nearby avionics bays. Has anyone else had bad luck with those clamp-on probe adapters?

2 comments

2 Comments

barbararamirez13d agoProlific Poster

Wait, you had a Fluke kit giving false readings because of avionics bay noise? That's crazy, Fluke is supposed to be the gold standard for stuff like that. I can't believe they'd let a probe be that sensitive to interference without some kind of shielding or warning in the manual. You'd think for that kind of money, the thing would be bulletproof in a real shop environment. Did you try wrapping the probe lead in ferrite beads or anything? I've had to jury rig some shielding on cheap test leads before but never on a Fluke product.

noahward13d ago

Yeah those clamp on probes are basically just noise antennas in a busy avionics bay.