Max length of RG6 coax cable ???
RBM
but the situation is this:
Local cable company was supplying TV and internet via an underground RG11
cable that ran 500 feet to a two way splitter. One split to two TVs and one
split to the computer modem. The underground cable was installed and owned
by the home owner. Lightning struck the line and destroyed it, which was
confirmed by the cable company. I want to install a temporary overhead line,
and would like to use RG6. The run will be shorter then the current
underground, but I have no idea what the maximum distance is that I can get
away with using RG6. Any help is appreciated
TIA, Roy
Jeff Wisnia
Can't the cable company give you a definitive answer about that?
Jeff
--
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(W1BSV + Brass Rat '57 EE)
The speed of light is 1.98*10^14 fathoms per fortnight.
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"RBM" <rbm2(remove this)@optonline.net> wrote in message
news:Cgoti.105$oa...@newsfe12.lga...
Just use a good cable like Belden RG-6, #9116
RBM
through to someone to get a repair person out. I wasn't there with him, and
doubt I can get anyone at Cablevision that could answer the question
"Jeff Wisnia" <jwi...@conversent.net> wrote in message
news:0NadnXxM2PWohSvb...@comcast.com...
RBM
300 to 400 feet
<kjpro @ usenet.com> wrote in message
news:d9624$46b61ae3$9440c41e$27...@STARBAND.NET...
@usenet.com
> That is my intention. I just want to be sure I'll get enough signal
through
> 300 to 400 feet
Get-r-done
Oren
A fast Google - 1,000 feet for RG6.
--
Oren
"If things get any worse, I'll have to ask you to stop helping me."
Jeff Wisnia
> It took me three tries, and an hour and a half on hold, until I could get
> through to someone to get a repair person out. I wasn't there with him, and
> doubt I can get anyone at Cablevision that could answer the question
>
I hear you...There's a "strong smell of stupid" which somehow comes
right through the phone lines when you try and accomplish something that
seems like it should be a simple task.
Tony
what is The speed of light then you are worst they are
KA2AYS
"Jeff Wisnia" <jwi...@conversent.net> wrote in message
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John Grabowski
> That is my intention. I just want to be sure I'll get enough signal
through
> 300 to 400 feet
RG6 should be fine, but use quad shield. Worst case Roy is that you might
have to install a signal booster.
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"John Grabowski" <jgra...@optonline.net> wrote in message
news:kbuti.162$aj1...@newsfe12.lga...
>
> "RBM" <rbm2(remove this)@optonline.net> wrote in message
> news:16pti.47$gw3...@newsfe12.lga...
> > That is my intention. I just want to be sure I'll get enough signal
> through
> > 300 to 400 feet
>
>
> RG6 should be fine, but use quad shield. Worst case Roy is that you might
> have to install a signal booster.
It's just for temporary service... quad is a little overkill.
Steve Barker
work. Quad shield is pretty much standard now anyway.
st
<kjpro @ usenet.com> wrote in message
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"Steve Barker" <ichase...@not.hotmail.com> wrote in message
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> doesn't matter if it's for 5 minutes or 5 years. If the cheap cable won't
> work. Quad shield is pretty much standard now anyway.
Who said it wouldn't work?
Who said Belden was cheap cable?
RBM
"RBM" <rbm2(remove this)@optonline.net> wrote in message
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> Thanks guys, I'm going for the quad shield RG6
Your concern is signal loss, yet you're going with a higher shielded
cable?????
valvejob
You must be thinking of twin lead. There is very little difference
in signal loss between regular RG6 and quad shield RG6.
Steve Barker
s
<kjpro @ usenet.com> wrote in message
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> duh. yes. That's why the extra shield, to prevent signal loss.
Better guess again, cause you're wrong!
@usenet.com
> duh. yes. That's why the extra shield, to prevent signal loss.
clifto
> Who said Belden was cheap cable?
Some of the cables Belden makes are really, really, really, really, really,
really, really, really, really, really, really good.
Others of the cable Belden makes are good.
--
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<http://www.theregister.com/2007/08/02/spammer_gets_30_years/>
dpb
Typically coaxial cables with 75W characteristic impedance are used for
CCTV video signal transmission.
Commonly used cable types are
1. RG 59/U with 22 gauge solid copper inner conductor and bare copper
shield (diameter approx. 6mm). Example Belden 9659, 9259 etc. Many types
of RG59 cables are available with varying characteristics. Belden 9659
has approximately 3dB/100m attenuation at 10MHz.
2. RG6/U has 18 guage solid copper inner conductor with 7mm diameter and
has approximately 2.3dB/100m attenuation at 10MHz.
3. RG11/U Example Belden 8213 with 14 gauge solid copper inner conductor
and copper shield (diameter approx. 10mm) has approximately 1.2dB/100m
attenuation at 10MHz.
For reasonable video quality, RG59/U can be used up to 250m, RG6/U up to
400m and RG11/U up to 550m. Longer distances can be supported with the
help of proper video amplifiers.
(1dB loss refers to a signal loss of approximately 11%; 2dB,
approximately 20% and 3dB, approximately 30%.)
--
Art Greenberg
OP is asking about an RF application, not a baseband video application.
For cable TV, loss figures at 750MHz would be more relevant. I'm not in
a position to obtain that info ATM ...
--
Art Greenberg
artg at eclipse dot net
dpb
OK, didn't notice that...
Relative will probably be pretty similar relationship relatively, just a
higher loss...
Any way, all needs to do is look at some manufacturer spec's and see
where they are. I just pulled that from a quick google...
--
George
> Typically coaxial cables with 75W characteristic impedance are used for
> CCTV video signal transmission.
> Commonly used cable types are
>
> 1. RG 59/U with 22 gauge solid copper inner conductor and bare copper
> shield (diameter approx. 6mm). Example Belden 9659, 9259 etc. Many types
> of RG59 cables are available with varying characteristics. Belden 9659
> has approximately 3dB/100m attenuation at 10MHz.
>
> 2. RG6/U has 18 guage solid copper inner conductor with 7mm diameter and
> has approximately 2.3dB/100m attenuation at 10MHz.
>
> 3. RG11/U Example Belden 8213 with 14 gauge solid copper inner conductor
> and copper shield (diameter approx. 10mm) has approximately 1.2dB/100m
> attenuation at 10MHz.
>
> For reasonable video quality, RG59/U can be used up to 250m, RG6/U up to
> 400m and RG11/U up to 550m. Longer distances can be supported with the
> help of proper video amplifiers.
>
> (1dB loss refers to a signal loss of approximately 11%; 2dB,
> approximately 20% and 3dB, approximately 30%.)
>
> --
The OP is asking about a broadband not a baseband application.
CJT
> duh. yes. That's why the extra shield, to prevent signal loss.
>
How's that, again? Maybe a better S/N, but how less loss?
>
> s
>
>
> <kjpro @ usenet.com> wrote in message
> news:1e2a7$46b69f4a$9440c41e$25...@STARBAND.NET...
>
>>"RBM" <rbm2(remove this)@optonline.net> wrote in message
>>news:nIvti.88$gw3...@newsfe12.lga...
>>
>>
>>>Thanks guys, I'm going for the quad shield RG6
>>
>>
>>Your concern is signal loss, yet you're going with a higher shielded
>>cable?????
>>
>>
>
>
>
--
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DA
http://www.thestuccocompany.com/maintenance/Max-length-of-RG6-coax-cable-240106-.htm
:
RBM wrote:
> I'm sure there are variables and information that I don't currently
> have,
> but the situation is this:
> Local cable company was supplying TV and internet via an underground
> RG11
> cable that ran 500 feet to a two way splitter. One split to two TVs
> and one
> split to the computer modem. The underground cable was installed and
> owned
> by the home owner. Lightning struck the line and destroyed it, which
> was
> confirmed by the cable company. I want to install a temporary overhead
> line,
> and would like to use RG6. The run will be shorter then the current
> underground, but I have no idea what the maximum distance is that I can
> get
> away with using RG6. Any help is appreciated
> TIA, Roy
I think you are going about it from a wrong perspective: I would say that
if the cable company still wants your account, then THEY should repair the
cable the way they see suitable for providing you with the required signal
strength at your end TV connection.
In any case, how are you going to hook your temp cable up to their box,
anyways? They will not let you in for sure.
And last but not least, you've had a lightning problem with a buried
cable. I cannot stress enough that pulling an aerial run (and maybe even
bypassing lightning arrestors as they now may be in a wrong location) is
simply inviting MUCH more trouble.
And, no, RG6U is not going to cut it. Neither from the attenuation stand
point nor for hookups to the cable company's street cabinet that should be
receiving either .500 or RG11.
Good luck!
D~
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RBM
cable company wouldn't run the underground, so it was done privately, and
they made the connection to their equipment at the pole. With the line blown
by lightning we ran a temp RG-6 over the grass 400 feet from the main
splitter to the pole and the cable company connected it... it works fine
"DA" <info_at_1-sc...@foo.com> wrote in message
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