Re: [Elecraft] RFI and Direct tv or Dish network
On Thu,5/19/2016 6:41 AM, Warren Merkel wrote: Thanks for the note Jim, However I've already got multiple passes of the OCF Feedline fed through a stack of five 2.4" #31 donuts, per your very own, excellent RFI-Ham.pdf article. Picture on my QRZ page. https://www.qrz.com/db/KD4Z But that choke is in the wrong place -- to kill feedline current, it must be at the FEEDPOINT, up in the air where the feedline connects to the horizontal part of the antenna. Remember -- this is not DC, it is RF, and the feedline between the feedpoint and the choke is part of the antenna. All you have done is make current small at the location of the choke, but because the feedline is part of the antenna, current will vary along it following the laws of physics that determine how antennas work. To understand this, think of an ordinary resonant center-fed dipole. Current is near zero at the ends (it's an open circuit, with only capacitive coupling to space), and peaks at the center (because the center is a quarter wavelength from the end point). The same thing is happening with your feedline -- common mode current is near zero at the choke (you've forced that with the choke) and increases along the line toward the feedpoint. The problem with antennas fed with open wire line is that it is simply not practical to choke them at the feedpoint. OCF antennas have the additional problem that the off-center feed makes them VERY unbalanced, which creates a lot of common mode current on the feedline. This doesn't prevent them from working as antennas, but it does put a lot of RF in the shack and the feedline can also receive a lot of noise (if there is any around it). The RG6 has a stack of three donuts with a large number (didn't count) of turns, located at the demark point to the house. I guess I could add another set and spread out the Z over frequency a bit more. Spreading Z over frequency depends on the frequency range where transmitting causes problems. I believe I need to look for other entry points to the entertainment system as a whole, as the DirecTV DVR is network connected and of course, connected to an AV receiver. Lots of points of entry to squelch. I don't remember seeing a description of the symptoms of your problem. I would expect that interference to the DirectTV unit would be indicated by "breakup" -- a failure to decode, or interruptions in the decoding of the signal. If that isn't happening, but you're hearing detected audio or clicks, I'd suspect gear in the entertainment system and work on choking cables connected to it. But never rule out the possibility that there can be multiple points of ingress to that system. 73, Jim K9YC Warren, KD4Z On 5/18/2016 8:29 PM, Jim Brown wrote: Your antenna, an off-center-fed Windom, is notorious for generating common mode current on the feedline, and there's no way to choke it effectively to kill that current. So what you're calling a feedline Mother Nature calls part of the antenna. THAT'S a primary cause of your problem. If you're having issues on 80M, you'll need at least 13 turns of the RG6 through a single #31 toroid to make a dent in the common mode current. __ 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 j...@audiosystemsgroup.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
Re: [Elecraft] RFI and Direct tv or Dish network
Thanks for the note Jim, However I've already got multiple passes of the OCF Feedline fed through a stack of five 2.4" #31 donuts, per your very own, excellent RFI-Ham.pdf article. Picture on my QRZ page. https://www.qrz.com/db/KD4Z The RG6 has a stack of three donuts with a large number (didn't count) of turns, located at the demark point to the house. I guess I could add another set and spread out the Z over frequency a bit more. I believe I need to look for other entry points to the entertainment system as a whole, as the DirecTV DVR is network connected and of course, connected to an AV receiver. Lots of points of entry to squelch. Warren, KD4Z On 5/18/2016 8:29 PM, Jim Brown wrote: Your antenna, an off-center-fed Windom, is notorious for generating common mode current on the feedline, and there's no way to choke it effectively to kill that current. So what you're calling a feedline Mother Nature calls part of the antenna. THAT'S a primary cause of your problem. If you're having issues on 80M, you'll need at least 13 turns of the RG6 through a single #31 toroid to make a dent in the common mode current. __ 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
Re: [Elecraft] RFI and Direct tv or Dish network
First off, the Dish-NET receiver produced no RFI. It was not digital satellite so used s-video connections to Home Theater receiver which was connected to TV via HDMI. New Direct-TV receiver is high-def digital receiver so it uses HDMI interconnect to home theater. TV/home theater is on other side of wall from ham shack. The PS is not a wall wart. It looks more like an overgrown laptop PS. But I can try toroids on power cable and HDMI to see if that quiets it. Really no problem most of the time as 2m is not in use when TV is in use. I have not determined what the dc voltage out of the satellite PS. KX3 in AM mode works fine as RFI sniffer. 73, Ed - KL7UW From: "John K9UWA" To: elecraft@mailman.qth.net Subject: Re: [Elecraft] RFI and Direct tv or Dish network Message-ID: <573c9d63.28664.20e1d...@john.johnjeanantiqueradio.com> Content-Type: text/plain; charset=US-ASCII Jim is 100% correct. The Direct TV receivers are HORRIBLE for noise generation. Maybe you can't hear it if your Ham Antenna is far enough away but it is there for sure. I bought a Sony model ICF-2001 to use looking for various noises about the house. You don't want the later models as they have auto noise blankers in them. The radio covers AM/SW/FM and does AM or SSB. Jim is exactly correct regarding the Wall Wart type switcher supply on these Direct TV receivers. They are 12.6 vdc so easy for us Hams to pick up a nice small linear transformer powered regulated supply. I also hooked up the Modem and Router to this same linear supply. Yes every one of them made noise. Next the HDMI cable from the Direct TV receiver to the TV set also mades lots of racket. I use TWO of the FT-240 mix 31 cores and managed to get about 5 turns through both chokes. That killed the HDMI cable noise. John k9uwa 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@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
Re: [Elecraft] RFI and Direct tv or Dish network
Great info. :-) Now that the OPs question is answered, let's close the thread now in the interest of containing email overload for our other readers. 73, Eric (in the air heading to Dayton..) Moderator elecraft.com _..._ > On May 18, 2016, at 9:56 AM, w9hak wrote: > > Thanks to all that replied to my question. Great list! __ 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
Re: [Elecraft] RFI and Direct tv or Dish network
Thanks to all that replied to my question. Great list! Smith Bradford W9HAK On 5/17/2016 3:15 PM, w9hak 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 arch...@mail-archive.com
Re: [Elecraft] RFI and Direct tv or Dish network
Jim is 100% correct. The Direct TV receivers are HORRIBLE for noise generation. Maybe you can't hear it if your Ham Antenna is far enough away but it is there for sure. I bought a Sony model ICF-2001 to use looking for various noises about the house. You don't want the later models as they have auto noise blankers in them. The radio covers AM/SW/FM and does AM or SSB. Jim is exactly correct regarding the Wall Wart type switcher supply on these Direct TV receivers. They are 12.6 vdc so easy for us Hams to pick up a nice small linear transformer powered regulated supply. I also hooked up the Modem and Router to this same linear supply. Yes every one of them made noise. Next the HDMI cable from the Direct TV receiver to the TV set also mades lots of racket. I use TWO of the FT-240 mix 31 cores and managed to get about 5 turns through both chokes. That killed the HDMI cable noise. John k9uwa > On Tue,5/17/2016 8:26 PM, Edward R Cole wrote: > > I suppose some ferrites and shielding the separate switcher would > > solve this. > > Or replace the switcher with a linear supply. > > 73, Jim K9YC __ 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
Re: [Elecraft] RFI and Direct tv or Dish network
I have no RFI with Dish. Try using a balanced antenna with a choke and quality coax. John KK9A Warren Merkel Wed May 18 08:23:30 EDT 2016 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 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 arch...@mail-archive.com
Re: [Elecraft] RFI and Direct tv or Dish network
On Wed,5/18/2016 5:23 AM, Warren Merkel wrote: I would recommend much more separation of antennas and feedline than I have, if possible. Your antenna, an off-center-fed Windom, is notorious for generating common mode current on the feedline, and there's no way to choke it effectively to kill that current. So what you're calling a feedline Mother Nature calls part of the antenna. THAT'S a primary cause of your problem. If you're having issues on 80M, you'll need at least 13 turns of the RG6 through a single #31 toroid to make a dent in the common mode current. Grounding the dish is important for lightning safety, but it is NOT part of a solution for RFI. The earth is not a "sump" into which RF is poured. 73, Jim K9YC __ 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
Re: [Elecraft] RFI and Direct tv or Dish network
On Tue,5/17/2016 8:26 PM, Edward R Cole wrote: I suppose some ferrites and shielding the separate switcher would solve this. Or replace the switcher with a linear supply. 73, Jim K9YC __ 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
Re: [Elecraft] RFI and Direct tv or Dish network
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 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" > To: > 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 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
Re: [Elecraft] RFI and Direct tv or Dish network
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" To: 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 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 arch...@mail-archive.com
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 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 arch...@mail-archive.com
Re: [Elecraft] RFI and Direct tv or Dish network
Had Dish-NET for several years and switched to Direct-TV two years ago during a time there was contract dispute between Ch.13 (Anchorage) and Dish-NET that threatened that they would not carry the network programming. We are 65-90 miles from the TV stations which makes digital TV not watchable from off-air reception. No RFI either way from the mw satellite system but the new Direct-TV receiver switching PS gets into my 2m receiver. Fortunately, I am not using 2m when watching TV. We power-off the AC to the entertainment equipment when not using it (saves power consumption over time). I suppose some ferrites and shielding the separate switcher would solve this. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: dubus...@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
Re: [Elecraft] RFI and Direct tv or Dish network
Not that I'm a fan of Verizon the company, I'm not, but FIOS will rid you of all RFI blues. My neighbors had Comcast and I would get the dreaded phone call time and again that I was messing up their TV. Thank goodness they are great people. Then they switched to FIOS and now I can contest to my heart's content running 1.5 kW with my 4 element SteppIR 100' above their TV room. No more RFI phone calls! 73 Todd WB2ZAB __ 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
Re: [Elecraft] RFI and Direct tv or Dish network
On 5/17/2016 4:15 PM, w9hak wrote: I am contemplating dropping TWC and going to a satellite system. Any advice on rfi would be appreciated. We have DirecTV, and there is no interference from my K3s on 80-6M. Also, the DirecTV receiver does not interfere with ham band reception. -- 73, Mike N4CF Louisa County, VA USA Elecraft K3s/100 Carolina Windom up 45' http://n4cf.mdodd.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
Re: [Elecraft] RFI and Direct tv or Dish network
I have Direct TV with no RF issues. ~73 Don KD8NNU 2014 3905CC Top Gun :-) -.- -.. ---.. -. -. ..- -Original Message- From: John K9UWA Sent: Tuesday, May 17, 2016 6:03 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] RFI and Direct tv or Dish network __ 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 gold...@charter.net __ 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
Re: [Elecraft] RFI and Direct tv or Dish network
In the '90s, had DirecTV for over 10 years with no RFI problems running full power. Changed over to Verizon Fios, etc. Now after 10 years of Verizon (now Frontier) and ever increasing monthly bills, getting ready to go back to DirecTV! - Roger W5RDW -- View this message in context: http://elecraft.365791.n2.nabble.com/RFI-and-Direct-tv-or-Dish-network-tp7617530p7617546.html Sent from the Elecraft mailing list archive at Nabble.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
Re: [Elecraft] RFI and Direct tv or Dish network
__ 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
Re: [Elecraft] RFI and Direct tv or Dish network
I have DISH, it sucks but never a problem with RFI. I run QRO Power, a couple of my friends have DISH and Direct with Zero RFI issues. NK 9G Sent from my iPad > On May 17, 2016, at 3:38 PM, Jim - N4ST wrote: > > Never had a problem with HF or 6M ops interfering with DirecTV. > Can't say I have noticed the DirecTV interfering with ham ops. > > When I first got DirecTV we had a problem when doing Pay Per View movies. > We often lost the first few minutes of the movie. > Finally figured out that when the kids would do popcorn in the microwave it > caused the DirecTV to drop signal. > Also noticed that we would lose WiFi connections when the microwave was > operational. > We got rid of that microwave. > _ > 73, > Jim - N4ST > > -Original Message- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of w9hak > Sent: Tuesday, May 17, 2016 16:15 > To: elecraft@mailman.qth.net > Subject: [Elecraft] RFI and Direct tv or Dish network > > 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 rmcga...@wi.rr.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
Re: [Elecraft] RFI and Direct tv or Dish network
I've had DirecTV in four different homes with two different receivers for almost 20 years and never a bit of RFI has affected the receivers. I have gotten into the stereo amplifier on occasion but that is another matter entirely. 73, Nate, N0NB -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Ham radio, Linux, bikes, and more: http://www.n0nb.us __ 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
Re: [Elecraft] RFI and Direct tv or Dish network
Never had a problem with HF or 6M ops interfering with DirecTV. Can't say I have noticed the DirecTV interfering with ham ops. When I first got DirecTV we had a problem when doing Pay Per View movies. We often lost the first few minutes of the movie. Finally figured out that when the kids would do popcorn in the microwave it caused the DirecTV to drop signal. Also noticed that we would lose WiFi connections when the microwave was operational. We got rid of that microwave. _ 73, Jim - N4ST -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of w9hak Sent: Tuesday, May 17, 2016 16:15 To: elecraft@mailman.qth.net Subject: [Elecraft] RFI and Direct tv or Dish network 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 arch...@mail-archive.com
Re: [Elecraft] RFI and Direct tv or Dish network
Smith - I switched from Comcast to Direct TV last November. I noticed NO RFI from the system, and NO interference to the TV reception. I was on at all hours, running 500 watts to a vertical. Dave - K9FN On May 17, 2016 4:16 PM, "w9hak" 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 dpbu...@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
Re: [Elecraft] RFI and Direct tv or Dish network
Smith, I have DISH and the roof sat receiver sits literally 15-feet from the SteppIR DB-11. No evidence of RFI in sat reception. Even I was amazed. Doesn’t solve DSS/cable bundling, but that’s another discussion with my OTT hat on. Apple TV streaming with TWC as ISP, no RFI. But with the TWC cable modem into gigabit router I must take great care to use ample ferrites and even shielded CAT 6 cable. But I digress. David A., KK6DA, Los Angeles > On May 17, 2016, at 1:15 PM, w9hak 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 davidahren...@me.com David Ahrendts davidahren...@me.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