On Thu, Nov 1, 2018 at 01:30 AM, Manuel Maseda wrote:
Unfortunately my scope does not include the CT option. Also owning a 2247A, and routinely using the build-in counter timer, the CT variant was something that was desirable and high on my 2465 wish list, but ultimately when the right scope came along it was a straight B version only and I did not have much of a choice anymore. The only option included is 49, which as you and Chuck have pointed out means it is a military version. But as Chuck also very eloquently explained, the accuracy of the 10MHz internal oscillator does not play any role in the process of measuring frequency of a waveform (at least not without a CT option), so adding an external ref input is now a moot point.
Thanks for the input.