[time-nuts] SMD TADD-1 distribution amplifier - seeking comments and suggestions?

Poul-Henning Kamp phk at phk.freebsd.dk
Fri Dec 18 09:38:08 UTC 2015


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In message <17836e4f4318bf8d2e5b6028224a0068.squirrel at email.powweb.com>, "Chris Caudle" writes:

>A better layout would be to have the power and input connectors on the
>same side of the PCB as the output connectors, and make  provision for all
>of the connectors to be snugged down tight to a metal enclosure, or at
>least a metal plate, so that any parasitic currents flowing on the shields
>can stay on the shields and won't be forced across the PCB.

A significant reason for the TADD-1 existing in the first place was to
break groundloops.  This is incompatible with tying all the BNC's together.

-- 
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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