Yuhang, Pierre, Aritomi

In the beginning, we tried to check the alignment of homodyne. But we cannot see a meaningful signal from AMC transmission.

We found the PZT of AMC was broken. I guess it is related with the strong force we(mainly it's me) enforced on this connector or its wire. I am sorry that I made very ugly soldering.

Anyway, we repaired it and we heard the sound of PZT by sending a 4kHz signal.

So in the future, let's be kind for our wires!