[TowerTalk] help with interference problems

[Jim Lux]

At 09:48 PM 7/17/2007, Roger (K8RI) wrote:



> > My Internet link is a 5.6GHz radio at the 100' level on the tower with an
> > 11
> > mile shot to the ISP. I come down the tower with shielded CAT5 to the
> > router
> > in a trailer at the base of the tower; this is run with about 8 turns thru
> > a
> > FT240-43 toroid . Then a 250' run of regular CAT5 to the house and a 8
> > port
>
>Lordy...I'm running a gigabit network through 130' of CAT5e parallel to and
>within about 5 to 10 feet of all the coax runs to the tower. (75 to 90 feet)
>It then runs under the 75 half wave sloper to the shop. I found that even a
>metal staple used to loosely hold the cable created enough inductance to
>screw up the network.  It won't work in metal conduit either.

Huh?  they run cat5 through conduits all the time with no problem.

>   I'd hate to
>think what'd happen with several turns on a toroid.



Absolutely nothing?  I've done this more than once with no ill effects.