Create your free account now! Sign up

Re: Can someone help me?

A 1300 foot drop would work easily, for internet only.  He said his forward level was ok, so I guess it's at 115 or 109 Mhz (ch 99 or 98), with about 1 db of loss per 100'.   A 1300' drop would lose 13 db, so if there were 15's at the tap the digital would be 10 or 6 down, depending on the modulation scheme, leaving -8 or -4 at the modem (specs are 15 to -15).  The return loss would be less than the forward (not 12), I would think 9 or 10.  If his tap was an 8 or 11, that makes about 20 db of attenuation.  If there were about 1000' of .500 to the next LE, that would be about 4 or 5 db of attenuation and a normal cascade would add another 4 or 5 db for insertion loss, for a total of 30 db.  This would be the same as a normal RG6 drop coming off of a 23 tap with a 2-way splitter.  My guess is that rookiecableguy "hot tapped" his drop (i.e. changed a 11 tap for a 4 tap) and doesn't have enough attenuation, or there is an inline EQ that is adding another 12 or 15 db of attenuation pushing his modem to the threshold.  The other people suggesting that a 1300' RG11 drop won't work, don't know what they're talking about.
This is CABL.com posting #316062. Tiny Link: cabl.co/mbunW
Posted in reply to: Re: Can someone help me? by cable407
There are 3 replies to this message
Re: Can someone help me? Toast 10/25/2010 9:20:29 PM
Re: Can someone help me? Nomack 10/25/2010 6:46:47 PM
Re: Can someone help me? goodsky 10/25/2010 6:36:28 PM