On 3/26/22 13:23, Joseph Gwinn wrote:
It's the ever-present ship-hull vibration (under full steam) that is
being compensated for operational vibration, which falls largely
between ~10 Hz and 200 Hz. Big gun shocks cause rare noise bursts.
Also, the shock from a naval gun quickly degrades anythi
On 3/25/2022 12:41 PM, John Ackermann N8UR wrote:
PS -- an interesting feature of these oscillators is that they are an
"S12" variant that has a little accelerometer bolted on and hooked to
the EFC circuit to compensate for G forces. These were ship-board Cs
units, so I wonder if the acce
On Fri, 25 Mar 2022 16:48:08 -0400, time-nuts-requ...@lists.febo.com
wrote:
time-nuts Digest, Vol 215, Issue 33
>
>7. Coupling between oscillators -- an example (John Ackermann N8UR)
>
> Date: Fri, 25 Mar 2022 15:41:46 -0400
> From: John Ackermann N8UR
> Subject: [time-nuts] Coupling between
Hi
Even in a commercial environment where one would *think* that
all the issues had been spotted and worked out long ago, issues
like this pop up pretty often. Any time you take this sort of data,
you very much need to look at what’s going on and see if it makes
sense.
If there was a “one siz
