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Coax?

Posted: Sun Jun 03, 2001 10:09 am
by =D3MoN=
What type of coax cable should I use with my cable modem?rg6 or rg59? ;)



Image

Posted: Sun Jun 03, 2001 10:22 am
by Kip Patterson
So far as I know, all ISP's now use or recommend the use of RG-6.

The problem comes when you terminate the coax. Good crimpers cost like thunder, and one bad connection can do a lot of harm. Hopefully you can use manufactured cables.

If the distance is short, a few feet from a splitter or wall plate, for example, RG-59 will work just fine.

Kip

Posted: Sun Jun 03, 2001 10:45 am
by blebs
Kip, by chance would you happen to know what db loss would occur in say, a 100ft run of RG-6? One of the cable techs that was here is telling me that there isn't any loss. I know from my old time C.B. days, that this isn't true. Could you enlighten me on the db behavior?

Posted: Sun Jun 03, 2001 11:05 am
by Kip Patterson
Well, that's quite a question. Start here:

http://bwccat.belden.com/cgi-bin/ncomme ... d2w/report

You'll note that Belden has 82 kinds of RG-6/U

Once you pick the kind you are interested in, click the "See Full Specs" box, then click on "Tech Data"

The attenuation varies greatly depending upon the dielectric material mostly, and on the shielding to a lesser degree.

Kip

Posted: Sun Jun 03, 2001 11:23 am
by ColdFusion
Cable Companies Say Use ( RG-6 )

Hope this Helps
Matt

Posted: Sun Jun 03, 2001 2:34 pm
by ZenOps
Use RG-6, its better for so many reasons.

As for types of RG-6, even a generic RG-6 will outperform ninety nine percent of brand name Rg-59 cable.

The two accepted leaders in the world of cabling are Belden and Commscope. (If anyone else knows of a contender please mention it)

Me, I like Commscope just because their RG-6 can be found readily premade at Home Depot as satellite cabling ;) They also make and sell "unofficial" Category 6e network cabling that is rated to 550Mhz http://www.commscope.com/pdf_files/utp_catalog.pdf :eek: