[Aritomi, Yuhang]

Today we found CC1 error signal is only 35.2 mVpp with old mixer while TAMA mixer gives similar value (~150mVpp) as yesterday. We need good mixers for CC1 and CCFC.

We swapped LO and RF of CC1 with TAMA mixer, but there is still offset and the CC1 error signal got smaller (first attached picture: before swap, second attached picture: after swap).

We checked RF power in LO and RF for CC1.

LO: -7.3 dBm

RF: -42 dBm

Note that this 14 MHz CC1 LO should be divided for CCFC LO.