[time-nuts] Re: Seems like the new version PN2060C is available for sale US$680
Poul-Henning Kamp
phk at phk.freebsd.dk
Sat Oct 7 14:07:08 UTC 2023
Bob Camp via time-nuts writes:
> One way or the other, the spurs are from an internal source in the device. [...]
That is why I was surprised to see that they retained the USB interface ?
As a first order approximation, anything related to USB is cost
optimized, and therefore EMI/EMC efforts terminate the moment the
spurs are 3dB under the template.
They do have a comment about stationary vs. laptop giving different
spurs, so I guess they are aware of it.
At that level of ambition I would have reached for batteries +
linear PSU + fiber-optics, even though it would be both more
cumbersome and costly.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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