Daniel, Sheila
We measured some tranfser functions of the PLL servo board.
Attached files are : X end PLL servo board 10kHz to 100kHz
AA1.txt , common compensation on, 0dB gain, generic filter on
AAA2.txt, 0dB gain, common compensation on, fast option on (this is a 292.48kHz notch)
AAA3.txt 0dB gain, nothing on (we were using the common mode servo which has a high impedance output to drive the RF analyzer which has 50Ohm inputs, we also used a BNC T. This might be why there is strange 2dB feature around 200kHz which should be subtracted from the other traces).