The friendly part is due to the cable companies now having significant
competition fro satellite and Internet sources. The free splitters part
has been around long before competition however.
The signal spectrum on the cable system overlaps the frequency spectrum
used over the air for such minor things as air traffic control. Leakage
from a cable system is a big issue, and there are annual CLI surveys,
sometimes performed by aircraft flyover to check for excessive leakage
and map those areas for investigation and repair.
The same leakage points are also frequently ingress points where signals
from truckers with illegal linear amps on their CBs (fortunately
becoming more rare today due to cell phones and sat links to dispatch)
can get into the cable system and cause problems.
Low quality splitters that have low RFI shielding ratings also usually
have low frequency range specs, and with cable systems running up to
1GHz, those splitters cause problems with the signal quality.
Similar problems exist with low quality coax and F connectors, so if you
as for F jumper cables they will often provide those as well.
my cable is good, it's brand new quad shield that I put the ends on
myself. so are all my jumper cables (easier than going to the store.)
the piece I replaced was the last of the old cable co. stuff in the
house, and that was part of the problem. Even free stuff is more
expensive overall than using the parts/tools that I already have in my
basement :) (time is money, you know.)
replace "roosters" with "cox" to reply.
YOU ARE PERCHED ON THE WRONG ALT TREE
DO YOU REALLY THINK THESE HOME REPAIR JOCKS AND HANDYMEN CAN HELP YOU
DECIDE WHAT TO DO ?
IF YOU WANT COX THAT IS PUERLY YOUR CHOICE
JOIN YOUR ENEMY WILL YOU ?
DON'T EXPECT ANYONE HERE TO HELP YOU WITH THAT
I AM PROTEUS
No, I just ASSumed that they were similar to the phone company in that
once the wiring enters the house it's "yours" and that repairs would be
expen$ive. Someone else suggested that, I might call on Monday.
Service center is not far from my office.
replace "roosters" with "cox" to reply.
If all the wiring is theirs and you did not add anything extra I wold think
they would want to repair it for you.
I am a ham radio operator and about 25 years ago a neighbor complained I
was messing up his cable tv. I was not having any problems with mine so got
the cable people involved. It turned out he had added some of his wiring
and used substandard cable. The cabel tv use some frequencies that other
services use.One of their movie chanels was on a frequency I was licensed to
use. As the cable is suspose to keep all their signal in the coax there
should not be a problem. They replaced his wiring and all was ok .
There are incredibly varying qualities in splitters. Look for one that's
all metal, soldered around the edges and is made by a reputable outfit. I
like gold plated connectors but nickel ones work just as well, although they
film over in humid areas. Splitters are often rated for certain frequencies
only. If I were powering four devices, I'd definitely put a signal amp in.
Also, on a four way, one connector will be marked IN with the other three
marked OUT, although you can use it in reverse as a signal combiner, but few
people need that. Make sure you've got that right - all four connectors are
not created equally.
I'd split the cable coming in with a dual, one leg going to the cable modem
and then take the other leg and run it into a signal amp and to the TVs.
Why? Because when the cable modem F's up, it's easy to remove all the TV's
and signal amps from the equation by removing the splitter and using a
barrel to replace it. That way only the cable modem is connected to the
incoming wire, and Comcast can't BS me about "you may have 'customer
installed equipment' (they say those words as if they were bitter poison)
that is interfering with your cable signal."
Also, if your terminations is bad, or you're using the wrong sort of cable
you can seriously screw up reception. A cable guy once told me he was
astounded by the RF leakage he finds in houses where the owners have done
their own wiring. I believe him.
For years I thought screw-on coax connectors were just as good as
crimped/compressed until fellow newsgroupers beat some sense into me and I
got a Snap'n'seal compression tool and a box of gold-plated compression
fittings. The foot massager that had always put noise on the bedroom TV no
longer did so when I redid all the fittings from screw and crimp to
compression. The difference on TV's at the ends of long cable runs was
incredibly noticeable. Cabling is like plumbing, to be good, it has to be
tight without leaks. The problem is that it's much hard to find cable
leaks. No puddles!
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