Fluke PM6680B Frequency Counter 10MHz OCXO Reference Upgrade Module

In this short episode Shahriar upgrades the recently repaired Fluke PM6680B with a new OCXO design by Dan Watson. The design of the module is examined as well various considerations for providing ultra clean 10MHz reference for instrumentation.  After module installation the unit functionality is verified. More information about the module is available here and here.


  1. Fluke says:

    Thank you so much for sharing this with us. I like the way you show up the core things. In electrical work process, Fluke test and measurement tools are the best things that every electrician need to use. If you want to know more about Our Fluke products just visit https://fluke.com.bd/

  2. Pierre says:

    I did it on my PM6680B, spot on !!
    Thank you for sharing.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

  • Social Media

  • Administrator

  • Archives

This site is protected by Comment SPAM Wiper.