Checking PLL OLG

Measured the OLG using out1/out2 method.  Did the G/(1+G) invertion to OLG directly on the SR785. Plotted in attachement 1.

Looks like a UGF of about 16.5 kHz

BN spectrum

Current beat note is at 8.98 MHz.  North cavity heater is set to 0.77422 W and will probably need to be raised a little to get us a little higher in BN frequency.

PLL settings are:
Marconi FM Devn: 10 kHz
SR560 Gain: 20
Beat note strength: -1.17 dBm

Calibrated BN spectrum is attached below, attachment 2