Re: [IRCA] QRM from Lights
Phil, I've been using CFLs since they first came out and overall Philips is the best bang for the buck I've found as far as low RFI and longevity. I have one that's 10+ years old and used daily and it's just now bebinning to dim a bit. They do tend to get noisier as they age but even the oldest of the bunch are still very RFI quiet. With the aquarium and plant lights going there are as many as 20 going at once with no interference. We also have 2 Philips LCD (not LED) TVs with no RFI problems. The worst tend to be the no-name or store brand bulbs and Made in China is something to avoid (if possible). Now if I could get my neighbors to upgrade their plasma TVs to LED... Tim Hills Sioux Falls, SD On 5/19/2014 4:07 PM, Phil Bytheway via IRCA wrote: ___ So they key is for us to figure out which devices have better RFI suppression... and it wouldn't hurt to have a reference for DXers to know what to get. We can start by providing feedback to our eGroup on what works and what doesn't. Let us know what works and what doesn't or any research that you've done. I will start to compile the results. ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
---BeginMessage--- The PS for my MacBook Pro makes noise on AM all over the house, and FM here in the room where the computer is. Powell ---End Message--- ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
The reason some products have RFI problems and others don't is almost always traceable to money. It takes a bit of money to design things so that RFI is minimized, and it costs a little money for components to filter the interference and shield the susceptible areas. Manufacturing variability should be almost a non-factor, in my opinion. Chuck From: can...@gmail.com Date: Sun, 18 May 2014 19:47:19 + To: barry.davie...@btopenworld.com; irca@hard-core-dx.com Subject: Re: [IRCA] QRM from Lights Fellas, I think a problem here is that you cannot assume that all power supplies are identical. So identical laptops, with identical power supplies can act quite differently. Perhaps the PSU is manufactured in batches, or in different factories. I seem to recall reading the same a few years back. I suspect the same can be said for light bulbs, etc etc. My best advice is to try them first! 73, Walt On Sun, May 18, 2014 at 7:37 PM, Barry Davies barry.davie...@btopenworld.com wrote: One for laptop PSU would also helpful :-) Best wishes and 73's Barry :-) Carlisle UK. Lat. 54.9795N Lon. 02.8745W PERSEUS, 3.7m x 10m Flag + FLG100 amp+Mains Filter From: Tim Kridel t...@timkridel.com To: irca@hard-core-dx.com irca@hard-core-dx.com Sent: Sunday, 18 May 2014, 15:28 Subject: [IRCA] QRM from Lights Sure, that¹s one type. I wonder if it¹s worth building a database of CFL, LED and halogen products that are known to be ‹ or not be ‹ sources of RFI. (There, I used a term we all probably can agree on.) So when DXers need to replace bulbs, they can check the database to see which products to consider or avoid. -- Message: 5 Date: Sat, 17 May 2014 19:32:37 -0700 (PDT) From: Powell E. Way III w4...@yahoo.com To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRM from Lights Message-ID: 1400380357.8359.yahoomail...@web121304.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 Man made as in radio stations transmitting. ? :) ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org/ To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
---BeginMessage--- Our neighbor decided to install a dimmer in their hallway so they could have a dim night light. Turns out the noise caused by that dimmer made it's way into our house via the common transformer on the pole between our houses. I talked to someone at City Light and they told me that I should get a certain brand (can't remember which - but it was many years ago so it's probably not made anymore). They mentioned that this brand was made in Canada where they have more restrictions on RFI emissions. This I did and replaced their dimmer and the noise was gone. Thus indicating that the regulations controlling emissions is the factor for producing an item. Since it costs more to include emission suppression, it is clear that unless the regulations force manufacturers to add it, they won't. Now that the lights themselves are causing problems, the situation becomes more of a necessity. I have also experienced loud buzzing from a fish tank heater (the fellow moved so it's not a problem anymore) and I never found a solution (so I'm glad he moved, hi.) So they key is for us to figure out which devices have better RFI suppression... and it wouldn't hurt to have a reference for DXers to know what to get. We can start by providing feedback to our eGroup on what works and what doesn't. Let us know what works and what doesn't or any research that you've done. I will start to compile the results. Phil Bytheway IRCA President / Goodie Factory Seattle WA Drake R-7 / KIWA Loop ---End Message--- ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] QRM from Lights
I'm using the Philips 100 W equivalent soft white (2700K) A21 dimmable LED. No noise on MW or FM. Date: Mon, 19 May 2014 14:07:19 -0700 (PDT) From: Phil Bytheway phil_te...@yahoo.com To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRM from Lights So they key is for us to figure out which devices have better RFI suppression... and it wouldn't hurt to have a reference for DXers to know what to get. We can start by providing feedback to our eGroup on what works and what doesn't. Let us know what works and what doesn't or any research that you've done. I will start to compile the results. ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] QRM from Lights
Sure, that¹s one type. I wonder if it¹s worth building a database of CFL, LED and halogen products that are known to be ‹ or not be ‹ sources of RFI. (There, I used a term we all probably can agree on.) So when DXers need to replace bulbs, they can check the database to see which products to consider or avoid. -- Message: 5 Date: Sat, 17 May 2014 19:32:37 -0700 (PDT) From: Powell E. Way III w4...@yahoo.com To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRM from Lights Message-ID: 1400380357.8359.yahoomail...@web121304.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 Man made as in radio stations transmitting. ? :) ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
One for laptop PSU would also helpful :-) Best wishes and 73's Barry :-) Carlisle UK. Lat. 54.9795N Lon. 02.8745W PERSEUS, 3.7m x 10m Flag + FLG100 amp+Mains Filter From: Tim Kridel t...@timkridel.com To: irca@hard-core-dx.com irca@hard-core-dx.com Sent: Sunday, 18 May 2014, 15:28 Subject: [IRCA] QRM from Lights Sure, that¹s one type. I wonder if it¹s worth building a database of CFL, LED and halogen products that are known to be ‹ or not be ‹ sources of RFI. (There, I used a term we all probably can agree on.) So when DXers need to replace bulbs, they can check the database to see which products to consider or avoid. -- Message: 5 Date: Sat, 17 May 2014 19:32:37 -0700 (PDT) From: Powell E. Way III w4...@yahoo.com To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRM from Lights Message-ID: 1400380357.8359.yahoomail...@web121304.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 Man made as in radio stations transmitting. ? :) ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org/ To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Fellas, I think a problem here is that you cannot assume that all power supplies are identical. So identical laptops, with identical power supplies can act quite differently. Perhaps the PSU is manufactured in batches, or in different factories. I seem to recall reading the same a few years back. I suspect the same can be said for light bulbs, etc etc. My best advice is to try them first! 73, Walt On Sun, May 18, 2014 at 7:37 PM, Barry Davies barry.davie...@btopenworld.com wrote: One for laptop PSU would also helpful :-) Best wishes and 73's Barry :-) Carlisle UK. Lat. 54.9795N Lon. 02.8745W PERSEUS, 3.7m x 10m Flag + FLG100 amp+Mains Filter From: Tim Kridel t...@timkridel.com To: irca@hard-core-dx.com irca@hard-core-dx.com Sent: Sunday, 18 May 2014, 15:28 Subject: [IRCA] QRM from Lights Sure, that¹s one type. I wonder if it¹s worth building a database of CFL, LED and halogen products that are known to be ‹ or not be ‹ sources of RFI. (There, I used a term we all probably can agree on.) So when DXers need to replace bulbs, they can check the database to see which products to consider or avoid. -- Message: 5 Date: Sat, 17 May 2014 19:32:37 -0700 (PDT) From: Powell E. Way III w4...@yahoo.com To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRM from Lights Message-ID: 1400380357.8359.yahoomail...@web121304.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 Man made as in radio stations transmitting. ? :) ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org/ To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
I wonder if it¹s worth building a database of CFL, LED and halogen products that are known to be ‹ or not be ‹ sources of RFI. (There, I used a term we all probably can agree on.) So when DXers need to replace bulbs, they can check the database to see which products to consider or avoid. On that notecan anyone recommend a 'noisless' dimmer...is there such a thing? Steve WEB - The VE7SL Radio Notebook: http://members.shaw.ca/ve7sl ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Not on this side of the Atlantic OM. Do Radio Hams have such lists? Best wishes and 73's Barry :-) Carlisle UK. Lat. 54.9795N Lon. 02.8745W PERSEUS, 3.7m x 10m Flag + FLG100 amp+Mains Filter From: Steve ve...@shaw.ca To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Sent: Sunday, 18 May 2014, 19:47 Subject: Re: [IRCA] QRM from Lights I wonder if it¹s worth building a database of CFL, LED and halogen products that are known to be ‹ or not be ‹ sources of RFI. (There, I used a term we all probably can agree on.) So when DXers need to replace bulbs, they can check the database to see which products to consider or avoid. On that notecan anyone recommend a 'noisless' dimmer...is there such a thing? Steve WEB - The VE7SL Radio Notebook: http://members.shaw.ca/ve7sl ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org/ To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Hi Steve, Your question about a noiseless light dimmer jogged an old memory for me. In one of the first editions of Fine Tuning's Proceedings books that I helped edit, we had a short piece on this subject in a Tips and Techniques article. John Bryant recommended a Nutone model DC-35 dimmer, sold as a suppressed RF light switch dimmer for incandescent lamps only. He said it worked like a charm, with no QRM even using a portable radio up close to the switch. John quoted the cost as $30 in 1989... likely quite a bit more now. David Clark added that if you can't find this particular model, look for dimmers sold as studio quality. 73, Guy Atkins Puyallup, WA -- Forwarded message -- From: Steve ve...@shaw.ca To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Cc: Date: Sun, 18 May 2014 12:47:25 -0700 Subject: Re: [IRCA] QRM from Lights On that notecan anyone recommend a 'noisless' dimmer...is there such a thing? Steve ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Thank you Guy! I will make note of this and start doing some hunting. If something noisless was available in 1989 then hopefully something similar is still being manufactured. My next door neighbour has no problem with me swapping out the present dimmer for something quieter...she even offered to remove it altogether but I don't want to be too heavy-handed since she also has allowed me to string my 2200m three-wire flatop over the top of her house and property to a tree on the far side of her property :-) ...a very good neighbour indeed. Steve / 73 Hi Steve, Your question about a noiseless light dimmer jogged an old memory for me. In one of the first editions of Fine Tuning's Proceedings books that I helped edit, we had a short piece on this subject in a Tips and Techniques article. John Bryant recommended a Nutone model DC-35 dimmer, sold as a suppressed RF light switch dimmer for incandescent lamps only. He said it worked like a charm, with no QRM even using a portable radio up close to the switch. John quoted the cost as $30 in 1989... likely quite a bit more now. David Clark added that if you can't find this particular model, look for dimmers sold as studio quality. 73, Guy Atkins Puyallup, WA -- Forwarded message -- From: Steve ve...@shaw.ca To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Cc: Date: Sun, 18 May 2014 12:47:25 -0700 Subject: Re: [IRCA] QRM from Lights On that notecan anyone recommend a 'noisless' dimmer...is there such a thing? Steve ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com WEB - The VE7SL Radio Notebook: http://members.shaw.ca/ve7sl ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Tim is correct. QRM = manmade interference (i.e., dimmer switches, halogen bulbs, power lines, etc.), QRN = natural interference (i.e., lightning strikes). 73, Rick Dau on the road in Davenport, Iowa and dealing with plenty of hotel room QRM!! From: t...@timkridel.com To: irca@hard-core-dx.com Date: Sat, 17 May 2014 04:00:36 + Subject: [IRCA] QRM from Lights I thought the M in QRM stood for ³manmade² and the N in QRN stood for ³natural. -- Message: 3 Date: Fri, 16 May 2014 11:17:25 -0700 (PDT) From: Powell E. Way III w4...@yahoo.com To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRN from Lights Message-ID: 1400264245.38388.yahoomail...@web121303.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 It would be QRN, not QRM. ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Really ?!! I guess I learned something today. In my 50 years in the hobby I always thought the QRN meant any kinda interference from noise and QRM was interference from other stations. 73 KAZ -Original Message- From: Rick Dau drummer196...@hotmail.com Sent: May 17, 2014 1:14 AM To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRM from Lights Tim is correct. QRM = manmade interference (i.e., dimmer switches, halogen bulbs, power lines, etc.), QRN = natural interference (i.e., lightning strikes). 73, Rick Dau on the road in Davenport, Iowa and dealing with plenty of hotel room QRM!! From: t...@timkridel.com To: irca@hard-core-dx.com Date: Sat, 17 May 2014 04:00:36 + Subject: [IRCA] QRM from Lights I thought the M in QRM stood for ³manmade² and the N in QRN stood for ³natural. -- Message: 3 Date: Fri, 16 May 2014 11:17:25 -0700 (PDT) From: Powell E. Way III w4...@yahoo.com To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRN from Lights Message-ID: 1400264245.38388.yahoomail...@web121303.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 It would be QRN, not QRM. ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Really ?!! I guess I learned something today. In my 50 years in the hobby I always thought the QRN meant any kinda interference from noise and QRM was interference from other stations. 73 KAZ YOU have it right Kaz ;-) Steve / VE7SL WEB - The VE7SL Radio Notebook: http://members.shaw.ca/ve7sl ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Actually does it matter if it is M or N. It is all noise and it interferes with reception. Larry K8YYY Once upon a time it was earlier - Shinnston, Northern Territories Harrison County, West Virginia ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Interesting thread. I dont care about the small stuff. However I was taught back in the late 70's that QRM was another station interfering and QRN was lightning, lights or anything that makes a buzz. Todd Skaine Woodbury, MN 2010 or car radio On May 17, 2014 12:01 PM, Larry R Fravel lfra...@cebridge.net wrote: Actually does it matter if it is M or N. It is all noise and it interferes with reception. Larry K8YYY Once upon a time it was earlier - Shinnston, Northern Territories Harrison County, West Virginia ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
Yep that's my understanding too Tod. Electrical buzz would be QRN (from the mid 60s) hi! Blowtorch splatter would be QRM. I have QRN coming down the mains. The noise was reduced by about 20% tops using a mains filter viz. http://www.reo.co.uk/cnw_101_single-phase_filter_with_high_attenuation1 I was just grateful each % point. Best wishes and 73's Barry :-) Carlisle UK. Lat. 54.9795N Lon. 02.8745W PERSEUS, 3.7m x 10m Flag + FLG100 amp+Mains Filter From: Forrest Skaine todftscytj7...@gmail.com To: IRCA Mailing list for the International Radio Club of America irca@hard-core-dx.com Sent: Saturday, 17 May 2014, 17:30 Subject: Re: [IRCA] QRM from Lights Interesting thread. I dont care about the small stuff. However I was taught back in the late 70's that QRM was another station interfering and QRN was lightning, lights or anything that makes a buzz. Todd Skaine Woodbury, MN 2010 or car radio On May 17, 2014 12:01 PM, Larry R Fravel lfra...@cebridge.net wrote: Actually does it matter if it is M or N. It is all noise and it interferes with reception. Larry K8YYY Once upon a time it was earlier - Shinnston, Northern Territories Harrison County, West Virginia ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org/ To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org/ To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from Lights
---BeginMessage--- Man made as in radio stations transmitting. :) Powell From: Tim Kridel t...@timkridel.com To: irca@hard-core-dx.com irca@hard-core-dx.com Sent: Saturday, May 17, 2014 12:00 AM Subject: [IRCA] QRM from Lights I thought the M in QRM stood for ³manmade² and the N in QRN stood for ³natural. ---End Message--- ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] QRM from Lights
I thought the M in QRM stood for ³manmade² and the N in QRN stood for ³natural. -- Message: 3 Date: Fri, 16 May 2014 11:17:25 -0700 (PDT) From: Powell E. Way III w4...@yahoo.com To: Mailing list for the International Radio Club of America irca@hard-core-dx.com Subject: Re: [IRCA] QRN from Lights Message-ID: 1400264245.38388.yahoomail...@web121303.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 It would be QRN, not QRM. ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] QRM from lights
Just had some halogen track lights installed at the Burnt River DX site. They're billed as LED compatible, for what that's worth, and it's also labeled as a 2-wire track system. System is on a dimmer that never previously caused problems when it was either off or set to full brightness. But this new system is creating a terrible buzz on AM that only goes away when I turn them off. The noise carries a fair ways - beyond where my coax goes to the external antenna. Any thoughts, recommendations or such? Saul Chernos ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from lights
It's not the lights but rather the low voltage switching power supply converting 120VAc to 12V DC. I had the same thing next door but they let me swap them out for 120V halogens rather than the 12V ones. There really is not much you can do with these supplies to make them quiet as the signals they produce are real and nasty. Steve Just had some halogen track lights installed at the Burnt River DX site. They're billed as LED compatible, for what that's worth, and it's also labeled as a 2-wire track system. System is on a dimmer that never previously caused problems when it was either off or set to full brightness. But this new system is creating a terrible buzz on AM that only goes away when I turn them off. The noise carries a fair ways - beyond where my coax goes to the external antenna. Any thoughts, recommendations or such? Saul Chernos ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com WEB - The VE7SL Radio Notebook: http://members.shaw.ca/ve7sl ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from lights
Halogen lamps are very noisy. I stayed with a relative several years ago, and from the opposite end of a huge house, I knew immediately when she turned on her reading light. My radio reception was destroyed immediately. Halogen or AM DX.pick one. Mike Hawkins On Thu, May 15, 2014 at 11:47 AM, Saul Chernos sau...@sympatico.ca wrote: Just had some halogen track lights installed at the Burnt River DX site. They're billed as LED compatible, for what that's worth, and it's also labeled as a 2-wire track system. System is on a dimmer that never previously caused problems when it was either off or set to full brightness. But this new system is creating a terrible buzz on AM that only goes away when I turn them off. The noise carries a fair ways - beyond where my coax goes to the external antenna. Any thoughts, recommendations or such? Saul Chernos ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] QRM from lights
I have no noise from the 120VAC ones...just the low voltage switching power supplied ones. Halogen lamps are very noisy. I stayed with a relative several years ago, and from the opposite end of a huge house, I knew immediately when she turned on her reading light. My radio reception was destroyed immediately. Halogen or AM DX.pick one. Mike Hawkins On Thu, May 15, 2014 at 11:47 AM, Saul Chernos sau...@sympatico.ca wrote: Just had some halogen track lights installed at the Burnt River DX site. They're billed as LED compatible, for what that's worth, and it's also labeled as a 2-wire track system. System is on a dimmer that never previously caused problems when it was either off or set to full brightness. But this new system is creating a terrible buzz on AM that only goes away when I turn them off. The noise carries a fair ways - beyond where my coax goes to the external antenna. Any thoughts, recommendations or such? Saul Chernos ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com WEB - The VE7SL Radio Notebook: http://members.shaw.ca/ve7sl ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] QRM from Lights
I just installed my first LED bulb, a Philips 100 W equivalent. So far, no noise. I'd be interested in hearing from anyone who's tried other brands, particularly Cree. I also have several 100 W equivalent halogens. Fortunately they're not producing any noise, either, but that could be because they plug into a standard lamp socket like a regular incandescent rather than using a power supply or transformer. I never had any noise with CFLs, but I quit using them because the light quality and lifespan both were crap, regardless of brand. ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
