I used to have “fiber to the home” while living in Bloomington, Indiana. The provider is Smithville Fiber and in general, their TV, Internet, Telephone bundle is excellent and price wise, very competitive. Having said that, their interface equipment (external fiberoptic to ethernet inside the home) is of such a poor quality that even while tuning the radio with less than 5 watts, the internet would freeze and cease to work. I tried to use multiple RF chokes on the coax from the antenna, the internal ethernet distribution inside the house, even shielding the outside interface box the best I could, but nothing worked. Other hams in the Bloomington area have the same experience and all of us traced it to the poor components and lack of shielding (contrary to FCC requirements) that they use in the provider’s installation. Obviously they never considered that ham radio operator exist and are protected under the FCC Rules. So we went as a group and met with their management. They promised to take action. I don’t know if they every did. Since then, I moved to North Carolina and am now using Time Warner Cable. I have a Hex Beam in my backyard using 100 watts. I also have a doublet fed with window line and a balun inside my attic, same power. No problems to report up to this date.
So, it is quite possible that the providers are using the least expensive equipment for cable, TV, and internet distribution. In my case back in Bloomington, Smithville had to change the cable box three times because of defects in materials and workmanship. I know that companies have to make money to subsist, but buying the lowest bidder sometimes brings its own problems. If in doubt, check NASA’s experience! Ramón E. Tristani Sr. r.trist...@gmail.com NQ9V > On May 18, 2016, at 9:21 AM, David Cutter <d.cut...@ntlworld.com> wrote: > > Some OCF dipoles work very well when used with a 2-choke balun, see DJ0IP for > suitable designs. Spiderbeam make proper 2-choke baluns for their OCF > dipoles but I don't know of any others. It's all about suppressing those > common mode currents on the outside of the coax. He and I have both measured > common mode currents with different chokes; see his site for details. > http://www.dj0ip.de/balun-stuff/ > > David > G3UNA > > > ----- Original Message ----- > From: "Warren Merkel" <hullspee...@gmail.com> > To: <elecraft@mailman.qth.net> > Sent: Wednesday, May 18, 2016 1:23 PM > Subject: Re: [Elecraft] RFI and Direct tv or Dish network > > >> I have a DirecTV system and haven't had as good luck with RFI as the >> others here. My dish is about 40 feet directly below and near the end >> of an OCF 80m Windom. It worked out that was the only realistic >> position that afforded full Sat views through the trees. >> >> Usually nothing happens at 100w HF output, but when I run the power up >> to 500w (depending on band), two of my DVRs either "turn off" (standby >> really) or start randomly recording whatever channel is being tuned at >> the time. I've got the dish grounded and the RG6 feed is passed >> multiple passes through large #31 ferrites, with no overall improvement >> in RFI. >> >> I would recommend much more separation of antennas and feedline than I >> have, if possible. >> >> Warren, KD4Z >> >> On 5/17/2016 10:08 PM, w9hak <w9...@twc.com> wrote: >> I am contemplating dropping TWC and going to a satellite system. Any >> >> advise on rfi would be appreciated. >> >> Smith Bradford >> W9HAK >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to d.cut...@ntlworld.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to r.trist...@gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
