Re: [Elecraft] Computer Monitor Recommendations
THANK YOU K9YC Jim I have read all the monitor solutions offered since the OP posted his question yesterday. #1 I never met a monitor yet that didn't emit RFI and at least 90% of the noise was from the no surprise here Switching Power Supply. That said I purchase two LG LCD monitors 2 years ago that have EXTERNAL WALL WART supplies. No I didn't want to go inside a brand new monitor to try curing the SMPS noise. I can replace a Wall Wart 19 volts 2 amps. Nice Lambda regulated power supply. I think it weighs around 20 pounds. I added #31 mix cores to the AC cord on the Lambda supply plus #31 mix cores on the 19v to each Monitor. The Test? Transistor scanning radio that scans from LW up through VHF. While listening to the monitor and yes I can hear it a couple inches from the LCD screen but no farther than that. And Zero RF noise when listening to the DC line to the monitors or the AC line to the Lambda 0 to 20v supply. 73 John k9uwa > > No EMI that I can > > detect by on-off testing (there's plenty from other nearby sources). > > Did you unplug the wall wart (or the monitor) from the wall? That PSU, > whether external or built into the monitor, usually a major noise source. > > ALWAYS, when offering (or evaluating) advice about whether some device > is noisy, consider the possibility that the noise it produces is covered > by noise from other sources in your home and in your neighbors's homes. > Also consider proximity to ANTENNAS, not to the shack. > > I work a lot of FT8 on 160M to work DX and on 6M to work new grids. The > signal report is the signal to noise ratio. I run legal limit to very > good antennas on both bands, and I regularly receive reports that are at > least 10 dB worse than I give, telling me that most hams have horrendous > noise levels. > > 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 j...@johnjeanantiqueradio.com > John Goller, K9UWA & Jean Goller, N9PXF Antique Radio Restorations k9...@arrl.net 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: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] Computer Monitor Recommendations
The main computer in my shack is an HP Z800 Dual Xeon workstation with 2 Nvidia Quadra cards. Originally I had it set up with 2 HP ZR2440W 24" screens at keyboard level, and 1 Viewsonic 28" screen above (on a stand). The Viewsonic died a couple years ago, and I replaced it with an LG 49" TV (4K UHD - model UJ6300). I split the 49" up into 4 logical 2k 24" windows, so I now have the equivalent of 6 x 24" screens. I can use it for multiple purposes, including watching sports on the 49" screen (remember the days when we had sports??). The only issue I have is that one (just one ...) of the 2 HP ZR2440W radiates a spike on 17 meters. Not too serious, but rather weird. On my 2 other computers, I am using 24" screens from "V7" a house brand of Ingram-Micro. No problems with either of them. 73 Lyn, W0LEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Kane Sent: Saturday, June 13, 2020 11:13 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Computer Monitor Recommendations On 6/13/2020 8:54 AM, Mark Goldberg wrote: >> I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall >> behind the operating desk. If your computer can manage 4K video (or >> even HD), LOADS of space to see (don't need my readers) > > I also installed a slightly smaller (43") LG 4K monitor from Costco on the > wall. No EMC issues I can detect. I recently had to replace my 6-year old failed monitor and I settled on a 27" LG HD monitor (the largest size that could fit on the desk) because I didn't need 4K. $159 at Costco. It was the next-to-last on the shelf. The guy there said that large screen monitors were going very fast because the work-at-home folks were realizing that a 15" laptop screen just doesn't cut it for all-day use. No EMI that I can detect by on-off testing (there's plenty from other nearby sources). 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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 l...@lnainc.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] Computer Monitor Recommendations
On 6/13/2020 11:20 AM, Jim Brown wrote: > > Did you unplug the wall wart (or the monitor) from the wall? That PSU, > whether external or built into the monitor, usually a major noise source. In a two-word answer from an experienced RFI chaser -- of course! :) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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] Computer Monitor Recommendations
On 6/13/2020 9:13 AM, Phil Kane wrote: No EMI that I can detect by on-off testing (there's plenty from other nearby sources). Phil, Did you unplug the wall wart (or the monitor) from the wall? That PSU, whether external or built into the monitor, usually a major noise source. ALWAYS, when offering (or evaluating) advice about whether some device is noisy, consider the possibility that the noise it produces is covered by noise from other sources in your home and in your neighbors's homes. Also consider proximity to ANTENNAS, not to the shack. I work a lot of FT8 on 160M to work DX and on 6M to work new grids. The signal report is the signal to noise ratio. I run legal limit to very good antennas on both bands, and I regularly receive reports that are at least 10 dB worse than I give, telling me that most hams have horrendous noise levels. 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] Computer Monitor Recommendations
On 6/13/2020 8:54 AM, Mark Goldberg wrote: >> I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall >> behind the operating desk. If your computer can manage 4K video (or >> even HD), LOADS of space to see (don't need my readers) > > I also installed a slightly smaller (43") LG 4K monitor from Costco on the > wall. No EMC issues I can detect. I recently had to replace my 6-year old failed monitor and I settled on a 27" LG HD monitor (the largest size that could fit on the desk) because I didn't need 4K. $159 at Costco. It was the next-to-last on the shelf. The guy there said that large screen monitors were going very fast because the work-at-home folks were realizing that a 15" laptop screen just doesn't cut it for all-day use. No EMI that I can detect by on-off testing (there's plenty from other nearby sources). 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ 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] Computer Monitor Recommendations
I have a portable monitor made by AOC. The stand folds into the back for convenient storage and transport. Connects to computer via USB. Very convenient and good for tight spaces. -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Mark Goldberg Sent: Saturday, June 13, 2020 8:54 AM To: Elecraft Mailing List Subject: Re: [Elecraft] Computer Monitor Recommendations On Sat, Jun 13, 2020, 8:03 AM Rick Bates, NK7I wrote: > I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall > behind the operating desk. If your computer can manage 4K video (or > even HD), LOADS of space to see (don't need my readers) I also installed a slightly smaller (43") LG 4K monitor from Costco on the wall. No EMC issues I can detect. See my qrz.com page, part way down. Lots of room for Ham Radio applications. 73, Mark W7MLG __ 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 gthorn...@thorntonmostullaw.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] Computer Monitor Recommendations
The noise shown on the spectrum is not from the monitor. No change in or off. 73, Mark W7MLG On Sat, Jun 13, 2020, 8:54 AM Mark Goldberg wrote: > On Sat, Jun 13, 2020, 8:03 AM Rick Bates, NK7I > wrote: > >> I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall >> behind the operating desk. If your computer can manage 4K video (or >> even HD), LOADS of space to see (don't need my readers) > > > I also installed a slightly smaller (43") LG 4K monitor from Costco on the > wall. No EMC issues I can detect. > > See my qrz.com page, part way down. Lots of room for Ham Radio > applications. > > 73, > > Mark > W7MLG > __ 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] Computer Monitor Recommendations
On Sat, Jun 13, 2020, 8:03 AM Rick Bates, NK7I wrote: > I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall > behind the operating desk. If your computer can manage 4K video (or > even HD), LOADS of space to see (don't need my readers) I also installed a slightly smaller (43") LG 4K monitor from Costco on the wall. No EMC issues I can detect. See my qrz.com page, part way down. Lots of room for Ham Radio applications. 73, Mark W7MLG __ 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] Computer Monitor Recommendations
I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall behind the operating desk. If your computer can manage 4K video (or even HD), LOADS of space to see (don't need my readers) and spread things out and being a smart TV, it has other features for the shack but I added a Dish Joey too. I've been using full QRO, all bands, no issues in receiving, no artifacts on the TV and it's cheaper than a monitor plus it has speakers so the desk has less on it. The new shack is still coming together, but it's looking better each upgrade. (I'd send a pic but I don't think qth.net allows that, so I'll update my QRZ page within a day or two.) 73, Rick NK7I On 6/13/2020 7:12 AM, Morgan Bailey wrote: https://www.amazon.com/gp/product/B075PMWCKS/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8=1 These are great monitors. We use them in the hospital. RF pretty much immune. No RFI generation and great for reading and Logging programs. Plus, They come with 3 sets of cables. HDMI, VGA, Display port. I have 2 of these mounted on this: https://www.amazon.com/gp/product/B009S750LA/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8=1 . Then I took 2 band clamps to the pole and mounted this: https://www.amazon.com/Lenovo-ThinkCentre-Desktop-i5-6500T-Windows/dp/B07QGLC4FW/ref=pd_rhf_ee_p_img_4?_encoding=UTF8=1=BPF1Q6NJ43K17FSHV78W . It has 6 usb ports, 3 type 2 and 3 type 3. More than enough for an SO2R set up. 2 for radios, 1 for controller, 2 for separate keyboards and 1 for mouse. No Usb break out boxes. Clean Setup. The Lenovo is hospital approved for high rf environments. It is totally a metal box and works great for logging, web streaming/browsing and light gaming, Guild Wars, EQ, WoW. It is my set up. Best of luck in your choices. 73 Morgan NJ8M On Fri, Jun 12, 2020 at 9:06 AM krug261--- via Elecraft < elecraft@mailman.qth.net> wrote: I realize this subject has come up several times in the past; I've been through the archives. However, computer equipment changes all the time. I am in the market for a new "quiet" monitor for the station. Are there monitors people would happily recommend? Conversely, are there brands/models you would keep away from? Or even a type of monitor you would not recommend for a shack? Thanks and 73, Bob, KA2TQV KX3, KXPA100, PX3 __ 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 mbaileyc...@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 rick.n...@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] Computer Monitor Recommendations
https://www.amazon.com/gp/product/B075PMWCKS/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8=1 These are great monitors. We use them in the hospital. RF pretty much immune. No RFI generation and great for reading and Logging programs. Plus, They come with 3 sets of cables. HDMI, VGA, Display port. I have 2 of these mounted on this: https://www.amazon.com/gp/product/B009S750LA/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8=1 . Then I took 2 band clamps to the pole and mounted this: https://www.amazon.com/Lenovo-ThinkCentre-Desktop-i5-6500T-Windows/dp/B07QGLC4FW/ref=pd_rhf_ee_p_img_4?_encoding=UTF8=1=BPF1Q6NJ43K17FSHV78W . It has 6 usb ports, 3 type 2 and 3 type 3. More than enough for an SO2R set up. 2 for radios, 1 for controller, 2 for separate keyboards and 1 for mouse. No Usb break out boxes. Clean Setup. The Lenovo is hospital approved for high rf environments. It is totally a metal box and works great for logging, web streaming/browsing and light gaming, Guild Wars, EQ, WoW. It is my set up. Best of luck in your choices. 73 Morgan NJ8M On Fri, Jun 12, 2020 at 9:06 AM krug261--- via Elecraft < elecraft@mailman.qth.net> wrote: > I realize this subject has come up several times in the past; I've been > through the archives. However, computer equipment changes all the time. I > am in the market for a new "quiet" monitor for the station. Are there > monitors people would happily recommend? Conversely, are there > brands/models you would keep away from? Or even a type of monitor you would > not recommend for a shack? > > Thanks and 73, Bob, KA2TQV > > KX3, KXPA100, PX3 > __ > 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 mbaileyc...@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
[Elecraft] Computer Monitor Recommendations
I realize this subject has come up several times in the past; I've been through the archives. However, computer equipment changes all the time. I am in the market for a new "quiet" monitor for the station. Are there monitors people would happily recommend? Conversely, are there brands/models you would keep away from? Or even a type of monitor you would not recommend for a shack? Thanks and 73, Bob, KA2TQV KX3, KXPA100, PX3 __ 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
