On 6/18/2010 8:51 PM, jimlux wrote:
> 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..
I would dearly love to go wireless, but it's just too slow for backups
across the network. There are improving the speed, but still have a ways
to go.
> 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"
>
Unfortunately there is the networked fax machine/printer. It ties
directly to the phone line AND the network.
73
Roger (K8RI)
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