Roger (K8RI) wrote:
>
>
> Unfortunately (I'm using that word a lot) all this work here has a
> flaw. The stereo equipment (in the living room), the computers (in the
> living room, den, and shop), and the ham stations (in the den and shop)
> are all tied together via CAT5 and CAT6 network cables, and coax cables
> from the antennas on two different towers that feed the stereo,
> satellite receivers (living room and shop), stereos (living room and
> shop), OTA TV sets (living room, family room in basement, and shop). To
> top it off the house and shop have different electrical feeds from the
> power company, but the grounds for both are tied together with the
> grounding system for the towers.
This *is* the problem.. one has network cabling, phone lines, etc. all
distributed sort of haphazardly throughout the house, so it's hard to
establish a reference point to tie everything to.
(A good argument for wireless LAN, BTW.. no long cables to radiate the
power supply noise of the router/switch, etc. Ethernet is galvanically
isolated, typically with at least 2000V or 5000V isolation)
These days, very few people use phone modems, so you don't need to
interconnect the phone line and the ham station at all. That would mean
avoiding using that extra "phone line transient suppressor jack"
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