Keysight 53220A Universal Frequency Counter Option 010 Ultra High Stability OCXO Timebase Upgrade

More details about this upgrade can be found on my blog
May also work for Keysight 53210A 53230A
www.circuitval...

[@digiwizkid]

Glad to see you back :)

[@mikeiver]

I think since all of these pieces of test equipment have a 10MHz reference input I would simply get a used cellular base station GPS timing card and use that for the entire lab. They have a OCXO on them that is locked to GPS and thus are far more accurate than a stand alone standard like the inbuilt one you added. The added plus is that all your instruments are all on the same timing page.

[@tabajaralabs]

FIRST! (first time hehe)

[@Ziggerzzz]

Squeeky voice but ok