OT: VERY SIMPLE HOME NETWORK

[Fairlight]

At Mon, Dec 27, 2004 at 03:03:30PM -0500 or thereabouts, 
suspect Brian K. White was observed uttering:
> 
> If the alarm system uses the same phone line, then it seems like a 
> no-brainer that you should filter it since:
> a) it's on the line and it's not a dsl modem
> b) you had any sort of problem at all
> c) actually, "a)" was enough already

In theory, yes.  In practise, not necessarily.

I've been told that some people never even need filters at all--they simply
have no problems.  My in-laws are sitting at 18000 feet from the CO and
they have two -hardwired- phones that have no jacks--wire from wall to
phone entirely--and they have absolutely no problems.  I don't even think
they filtered the fax machine.  They get a full 1.5/256 pipe's worth with
no latency.  I've benched it repeatedly.  (Ask John how anal I am about
testing circuits!!!  [Be prepared for an exasperated, yet humorous
response.])

OTOH, a lousy Caller ID box scewed me over for a week.

It just depends what's where, and what has enough capacitance to affect
the line and cause the high-end frequencies to roll off, as Bill V. has
pointed out repeatedly.  Sometimes filters aren't necessary, even though
technically you want to have them there for piece of mind.  As with
anything else, if it works, don't break it without reason.  I'd probably
filter it, but if it's working fine without a filter, it'd be a low
priority.

Interestingly, when they fixed the storm damage this summer, apparently
they redid the cabling -entirely- when they fixed my voice line's hard
ground and the other attendant damage.  IgLou tells me I used to be at
18000 feet, and I'm now at 13000 feet--a marked difference.  The
performance increase is fantastic though.

Say, I've been wondering, so long as we're on the topic.  Everyone and
their uncle seems to be saying their broadband is 70x faster than dialup.
Earthlink comes to mind.  So is everyone offering 3mbit, or do you think
they're comparing against a 28.8 modem instead of a v.90? :)

mark->
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