Dish/Direct TV RFI?
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Has anyone had trouble with RFI, receive or transmit, with Dish or
Direct TV. I have cable through Comcast & tired of their rate increases so thought I give satellite a try since looks like more bang for the buck. Thanks, Reed W4JZ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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I tracked down some receive RFI to a Dish Joey Ethernet connection. Unplugging the cable and switching it to use WiFi instead resolved it.
73, Wayne K2DT -----Original Message----- Has anyone had trouble with RFI, receive or transmit, with Dish or Direct TV. I have cable through Comcast & tired of their rate increases so thought I give satellite a try since looks like more bang for the buck. Thanks, Reed W4JZ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Reed Fite
Hi Reed
YES ! DirecTV receivers are horrible racket makers. #1 I built a new power cord for the receivers wired into a 12V ASTRON regulated 12v supply. No More Switcher Wall Warts allowed at my QTH. #2 The HDMI cable from the Rcvr to the TV set has 12 turns through a stack of TWO of the 2.4" diameter Ferrite #31 mix cores. Several other 12v devices are also connected to that same Astron supply. Modem, Router etc. Now that rcvr is quiet. John k9uwa > Has anyone had trouble with RFI, receive or transmit, with Dish or > Direct TV. I have cable through Comcast & tired of their rate increases > so thought I give satellite a try since looks like more bang for the buck. > > Thanks, > > Reed W4JZ > > ______________________________________________________________ John Goller, K9UWA & Jean Goller, N9PXF Antique Radio Restorations [hidden email] Visit our Web Site at: http://www.JohnJeanAntiqueRadio.com 4836 Ranch Road Leo, IN 46765 USA 1-260-637-6426 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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John described RFI from the wall wart switching supply and such supplies
are both notorious RFI generators and are ubiquitous. Our DirecTV receiver/DVR is completely quiet on HF and as far as I can test, on VHF and UHF as well. I've never interfered with it on any band, even when I was running 1200 watts. Regarding satellite internet, the unmanned spaceship is about 38,600 km away in the southern sky, so there is a significant LOS delay on top of all the usual processing and routing delays. This can make most forms of remote control problematic. We had a neighbor who worked for HP, often at home via a VPN, and the satellite internet did not work for him. You might see if there is a local wireless provider. I hosted a couple of RAP's for the local provider when we lived in rural NorCal and got free, 50 Mbps both ways in return. Unfortunately, such service is usually unavailable in more densely populated areas where cable and DSL is available. Really heavy rain will kill the satellite signal [Ku-band, I think] as will snow on the feed horns and in the dish. I can get to our dish from the ground with a broom. If you live in an area with significant snow, you might want to make sure the dish is accessible. I've wondered about some heating tape on the back of the dish but haven't done anything yet. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 3/14/2018 7:37 AM, John K9UWA wrote: > Hi Reed > > YES ! DirecTV receivers are horrible racket makers. > #1 I built a new power cord for the receivers wired into a 12V ASTRON regulated > 12v supply. No More Switcher Wall Warts allowed at my QTH. > > #2 The HDMI cable from the Rcvr to the TV set has 12 turns through a stack of > TWO of the 2.4" diameter Ferrite #31 mix cores. > > Several other 12v devices are also connected to that same Astron supply. > Modem, Router etc. Now that rcvr is quiet. > > John k9uwa > >> Has anyone had trouble with RFI, receive or transmit, with Dish or >> Direct TV. I have cable through Comcast & tired of their rate increases >> so thought I give satellite a try since looks like more bang for the buck. >> >> Thanks, >> >> Reed W4JZ >> >> ______________________________________________________________ > > John Goller, K9UWA & Jean Goller, N9PXF > Antique Radio Restorations > [hidden email] > Visit our Web Site at: > http://www.JohnJeanAntiqueRadio.com > 4836 Ranch Road > Leo, IN 46765 > USA > 1-260-637-6426 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Reed Fite
None seen here! Had had both Dish-Net and Direct-TV. Old 1.8m dish
was mounted about 30-foot from my 16-foot eme dish where I run 125w on 1296. No problems even with big dish pointed at the sat-TV dish. My HF antennas are above the ham shack which other side of bedroom wall from 46-inch Samsung TV (which uses home theater system). 6m does get into the subwoofer (audio rectification) when I run 80w+ (my wife just turns off the subwoofer if I am on 6m). I tried wrapping audio cables thru a big ferrite donut (no help). New 1.2m dish on the roof is about 40-feet away from my HF tower: Hygain tribander and 80/40m inverted-V. My 630m inverted-L wire passes over the dish about 20-feet above it. I have both K3 and KX3, Once you go with satellite-TV you will never chose cable again. They aren't perfect but the local dealer gets out pretty fast if you have tech problems. We mainly use sat-TV for watching local news&wx (Anchorage - 70mi North of us) and network programs (NBC, ABC, CBS, PBS) which are linked from local stations thru the satellite. Now that air broadcasts are digital, signal is too weak to use a TV antenna (I'd rather use tall towers for ham radio). Both Dish-Net and Direct-TV receive near 11-GHz microwave so are pretty much insensitive to most ham frequencies (I currently operate up to 1296). 73, Ed - KL7UW ------------------------------------------------- From: Reed <[hidden email]> To: [hidden email] Subject: [Elecraft] Dish/Direct TV RFI? Has anyone had trouble with RFI, receive or transmit, with Dish or Direct TV.? I have cable through Comcast & tired of their rate increases so thought I give satellite a try since looks like more bang for the buck. Thanks, Reed? W4JZ 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Reed Fite
Thanks everyone for responding! When you only have one cable network in
your area they pretty much can charge what they want. Been with them since the late 80's, but 2 increases in 3 months is a little much. I don't use them for internet or phone thank goodness, just TV. 73, Reed W4JZ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by k6dgw
A little clarification is due. Sorry I missed a couple parts in my original response
this morning to Reed's question about DirecTV rcvrs. My first omission. I do not use DirecTV for internet. Only for TV-reception. It would be horrible for internet. No Satellite Internet would work for anyone depending on internet to operate your own ham station remotely due to latency and or packet loss. My internet is provided through a CATV company. I have never had a problem with ingress of my Ham Station into the DirecTV system so I never considered that as an issue. I do run 1500W on 160-10m. Next part. Those who claim that the direcTV receivers don't make any noise into their Amateur Radio stations probablly have not listened to their DirecTV receivers with a Noise Sniffer, AM-transistor radio tuned off station; Small loop attached to your Ham Radio receiver that can be placed close to this receiver and other devices in your home. Sniffer receiver used is an old Sony 2001-ICF It doesn't have ANL. It can be tuned to most any frequency of interest, It has both internal an directional loop antenna and a nice long extendable whip that you can reach easily close to your Wall Warts, DirecTV receivers, TV sets, Computers Modems Routers fluorescent Lights LED lights. Try a walkabout your homes with such noise listening devices. You just might be surprised at how much noise you are getting into your ham radio antennas. Once you eliminate the top tier of noise generators in your home then you begin to hear the next level down noise generators. There are zero fluorescent ballasts in my home. All have been replaced by yes I did find quiet direct wire LED bulbs for replacements. Zero Variable speed motors, Fans or light dimmers. Many other devices as well as the wall wart switchers are gone or choked to stop the noise. Additional excellent information of noise location and cures at http://audiosystemsgroup.com/KillingReceiveNoise.pdf John k9uwa DXCC 160m 320 John Goller, K9UWA & Jean Goller, N9PXF Antique Radio Restorations [hidden email] Visit our Web Site at: http://www.JohnJeanAntiqueRadio.com 4836 Ranch Road Leo, IN 46765 USA 1-260-637-6426 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On 3/14/2018 12:04 PM, John K9UWA wrote:
> My first omission. I do not use DirecTV for internet. Only for TV-reception. It would be horrible for internet. My good friend W6JTI lives FAR off the grid in the "lost coast" section of Northern California (if you want to find him on a map, look a few miles SE of Shelter Cove). He has NO options for cable. He is THRILLED to have satellite internet. His alternative is a POTS line. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Reed Fite
I have had DISH for about three years, and it has been bullet-proof, with me running 1500 watts in contests on all HF bands. I've turned off power in the house several times to find potential sources of RFI, and the DISH equipment has never been found to radiate RFI. Before DISH, I had DirecTV, and that was not a problem either. My immediate neighbor had an old DirecTV box with a landline telephone line connected to it so she could order pay-per-view movies. That phone connection generated terrible RFI to all the other telephones in her house. A KCom filter on that line solved the problem.
Dave Hachadorian, K6LL Yuma, AZ -----Original Message----- From: Reed Sent: Wednesday, March 14, 2018 5:56 AM To: [hidden email] Subject: [Elecraft] Dish/Direct TV RFI? Has anyone had trouble with RFI, receive or transmit, with Dish or Direct TV. I have cable through Comcast & tired of their rate increases so thought I give satellite a try since looks like more bang for the buck. Thanks, Reed W4JZ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Reed Fite
I have personally seem a 40m signal change the channels on our Direct TV
setup. This is, unfortunately, a common problem... https://www.google.com/search?q=direct+tv+amateur+radio+changes+channels&oq=direct+tv+amateur+radio+changes+channels John, kx4o On Wed, March 14, 2018 12:56, Reed wrote: > Has anyone had trouble with RFI, receive or transmit, with Dish or > Direct TV. I have cable through Comcast & tired of their rate increases > so thought I give satellite a try since looks like more bang for the buck. > > Thanks, > > Reed W4JZ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On 3/14/2018 1:36 PM, John Huggins, kx4o wrote:
> I have personally seem a 40m signal change the channels on our Direct TV > setup. This is, unfortunately, a common problem... > > https://www.google.com/search?q=direct+tv+amateur+radio+changes+channels&oq=direct+tv+amateur+radio+changes+channels Problems like this are the result of design defects in the cable modem. It should be possible to solve problems of this sort by winding multiple turns of both the coax and the power cable #31 or #43 Fair-Rite toroids. See http://k9yc.com/KillingReceiveNoise.pdf for part numbers and guidelines for winding. While the app note discusses RX noise radiated from gear like this, the cures are the same for both. AND -- because it's the result of a defective modem (i.e. a bad design), ALWAYS call the vendor and tell them to fix it. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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