LabQuest 2: Readings from my Vernier Microphone are very noisy.

This information pertains to LabQuest 2.
If you have an original LabQuest, see LabQuest (original) and LabQuest Mini: Readings from my Vernier Microphone are very noisy.

The combination of Microphone, order code MCA-BTA, $39 (shipped before approximately June 15, 2012), and LabQuest 2, order code LABQ2, $329, will result in waveforms that exhibit excessive high-frequency noise. If an FFT is performed, the noise peaks above 3000 Hz.

There is no workaround. Vernier will replace the microphones with a newer version that is resistant to the interaction with LabQuest 2. New microphone have a white hang tag with black print on the cable.

If you have both LabQuest 2, and microphones made before Sept 2012, contact Vernier technical support to arrange an exchange.

We have also had reports of the same effect showing up when these microphones are used with the TI-nspire Lab Cradle TI-Nspire Lab Cradle, order code TI-NSLABC, $145

Older microphones all work well with LabPro, order code LABPRO, $220.

Microphones made after Sept 2011 work well with the original LabQuest. See:
TIL 2436: LabQuest (original) and LabQuest Mini: Readings from my Vernier Microphone are very noisy.

RELATED:
TIL 2274: How can I generate a clean sine wave output from a LabQuest?
TIL 662: What is the best procedure to get a clean sine wave when using a tuning fork with the microphone?