Pendulum | CNT-90 - TimeBase

[liszt955]

Hi guys!

Recently, I've been changing the TimeBase of my second-hand CNT-90 by replacing it with an OCXO, and When calibrating with a GPSDO, I encountered the problem "Impossible to calibrate timebase. Bad reference signal?"

I have followed the methods found online and have already changed the software options to option 30.

I would like to ask everyone, what methods are there to solve this problem?

By the way, how do I insert pictures? It's my first post.

[coromonadalix]

normally  as a first   do not double post, it is not appreciated,  you already posted in the repair section, and the guy hasn't showed for 2 years there