Home » Public Forums » GMCnet » RG58 C/U as it turns out
| Re: [GMCnet] RG58 C/U as it turns out [message #222736 is a reply to message #222707] |
Mon, 16 September 2013 18:05   |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma:
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We used to use miles of RG-59 in television plants when everything was NTSC. You wanted everything to be the same length so all the video stayed in sync. It was considered Bad Form to have the picture roll once when you switched sourcers.
--johnny
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On Mon, 9/16/13, John Wright <powerjon@chartermi.net> wrote:
Subject: Re: [GMCnet] RG58 C/U as it turns out
To: gmclist@temp.gmcnet.org
Date: Monday, September 16, 2013, 7:30 PM
The cable of choice for TV service
now and the last 8 to 10 years with digital signals is
RG-6U. The RG-59U was the cable of choice for
the cable companies before that and is still sold by some
stores. I used a 1000 foot spool of RG-6U when I did
the new house. I had called the cable company (Charter
Cable) and asked which one to use. They told me that
they had phased out the use of RG-59U and were replacing it
when upgrading service to new subscribers. Too much
signal loss with the new digital signals for cable service.
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
On Sep 16, 2013, at 2:48 PM, Emery Stora <emerystora@mac.com>
wrote:
> Kerry
> Look on the cable to see if any number is stenciled on
it. It might be different from the box.
>
> From Wikipedia, the free encyclopedia
> RG-58/U is a type of coaxial cable often used for
low-power signal and RF connections. The cable has a
characteristic impedance of either 50 or 52 Ω. "RG" was
originally a unit indicator for bulk RF cable in the U.S.
military's Joint Electronics Type Designation System. There
are several versions covering the differences in core
material (solid or braided wire) and shield (70% to 95%
coverage).
> The outside diameter of RG-58 is around 0.2 inches (5
mm). RG-58 weighs around 0.025 lbs/ft (37 g/m), exhibits
approximately 25 pF/ft (82 pF/m) capacitance and can
tolerate a maximum of 300 V potential (1800 W).[1] Plain
RG-58 cable has a solid center conductor. The RG-58A/U
features a flexible 7 or 19 strand center conductor.
> Most two-way radio communication systems, such as
marine, CB radio, amateur, police, fire, WLAN antennas etc.,
are designed to work with a 50 Ω cable.
> Emery Stora
>
> On Sep 16, 2013, at 12:56 PM, Kerry Pinkerton wrote:
>
>>
>>
>> Opened up the box and see this on the spool.
>>
>> RG 58C/U
>> Mil-C-17D Amend 1
>> 1000'
>>
>> Nom Charac
>> Impedance 50 ohm
>> Keep ends sealed
>>
>> I'm bringing it to Branson. The box is filthy
so I'm not bringing the box...just the spool. Someone
make me an offer.
>> --
>> Kerry Pinkerton
>>
>> North Alabama, near Huntsville,
>>
>> 77 Eleganza II, "The Lady", 403CI, also a 76
Eleganza being re-bodied as an Art Deco car hauler
>> _______________________________________________
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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