Re: [Flexradio] Wide Screen Monitors
Still looking for input on wide screen monitors using a refresh rate around 75Hz. If you don't know the answer, could someone with a wind screen monitor try changing the monitor setup to 75 Hz and see if it still gives you full screen, or black bars on each side. Early next I will purchase a monitor to go with my 5000A and would appreciate your input. Thanks and 73, Joe N9VX --- On Fri, Sep 10, 2010 at 2:53 PM, Joe Word joe.n...@gmail.com wrote: I have purchased a 5000A and will get an off lease computer and have questions about the monitor. I must set the monitor refresh rate above the standard 60Hz to around 75 Hz because I get motion sickness at the lower rate. I have had experience with one Dell wide screen monitor and PC, when I set the refresh rate to 70 or 75 Hz it would not work in full screen, it put black bars on each side and negating the benefit of the wide screen, is this normal or do other PC/monitor manufactures work a higher refresh rates (70 to 75 Hz) and still go full screen? If they all do this, I just as well purchase a non-wide screen monitor. Joe N9VX ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
Joe - My Dell wide scrren monitor, (ST2210) has a maximum refresh rate of 60 Hz. Also, my 19' Dell monitor also only allows refresh rate up to 60 Hz. What kind of monitor do you have? Like I said before, I gave up and feed the wide screen with VGA. Get full screen, and my old eyes can't really tell the difference. Have you tried feeding it with VGA or DVI-D? Both of those work into a fulll screen. Good luck. W8LO Larry - Original Message - From: Joe Word joe.n...@gmail.com To: flexradio@flex-radio.biz Sent: Sunday, September 12, 2010 1:40 PM Subject: Re: [Flexradio] Wide Screen Monitors Still looking for input on wide screen monitors using a refresh rate around 75Hz. If you don't know the answer, could someone with a wind screen monitor try changing the monitor setup to 75 Hz and see if it still gives you full screen, or black bars on each side. Early next I will purchase a monitor to go with my 5000A and would appreciate your input. Thanks and 73, Joe N9VX --- On Fri, Sep 10, 2010 at 2:53 PM, Joe Word joe.n...@gmail.com wrote: I have purchased a 5000A and will get an off lease computer and have questions about the monitor. I must set the monitor refresh rate above the standard 60Hz to around 75 Hz because I get motion sickness at the lower rate. I have had experience with one Dell wide screen monitor and PC, when I set the refresh rate to 70 or 75 Hz it would not work in full screen, it put black bars on each side and negating the benefit of the wide screen, is this normal or do other PC/monitor manufactures work a higher refresh rates (70 to 75 Hz) and still go full screen? If they all do this, I just as well purchase a non-wide screen monitor. Joe N9VX ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
Larry, I have not purchased a monitor yet, just want to make a good decision. All but one of the square LCD monitors I have used would go to 70 - 75Hz, but not much experience with the wide screen models. Joe N9VX On Sun, Sep 12, 2010 at 2:23 PM, Larry Royetta Otto w...@embarqmail.com wrote: Joe - My Dell wide scrren monitor, (ST2210) has a maximum refresh rate of 60 Hz. Also, my 19' Dell monitor also only allows refresh rate up to 60 Hz. What kind of monitor do you have? Like I said before, I gave up and feed the wide screen with VGA. Get full screen, and my old eyes can't really tell the difference. Have you tried feeding it with VGA or DVI-D? Both of those work into a fulll screen. Good luck. W8LO Larry - Original Message - From: Joe Word joe.n...@gmail.com To: flexradio@flex-radio.biz Sent: Sunday, September 12, 2010 1:40 PM Subject: Re: [Flexradio] Wide Screen Monitors Still looking for input on wide screen monitors using a refresh rate around 75Hz. If you don't know the answer, could someone with a wind screen monitor try changing the monitor setup to 75 Hz and see if it still gives you full screen, or black bars on each side. Early next I will purchase a monitor to go with my 5000A and would appreciate your input. Thanks and 73, Joe N9VX --- On Fri, Sep 10, 2010 at 2:53 PM, Joe Word joe.n...@gmail.com wrote: I have purchased a 5000A and will get an off lease computer and have questions about the monitor. I must set the monitor refresh rate above the standard 60Hz to around 75 Hz because I get motion sickness at the lower rate. I have had experience with one Dell wide screen monitor and PC, when I set the refresh rate to 70 or 75 Hz it would not work in full screen, it put black bars on each side and negating the benefit of the wide screen, is this normal or do other PC/monitor manufactures work a higher refresh rates (70 to 75 Hz) and still go full screen? If they all do this, I just as well purchase a non-wide screen monitor. Joe N9VX ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
A general comment: I'm using a 30 2560 x 1600 monitor - the HP zr30W and it is outstanding and great for tired eyes. Note: it requires a dual DVI video card. I wonder whether your motion sickness is due to a 'beating' between your 60Hz mains and the 60Hz refresh rate on the computer? Suggestions: 1) You're getting 60Hz from the mains into the monitor cables via induction? 2) Try switching off the lights? 3) Try some chunky ferrite cores on the monitor cable? Simon Brown, HB9DRV, http://sdr-radio.com (Sent from my computer as I had pigeon pie for lunch) -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex- radio.biz] On Behalf Of Joe Word I have not purchased a monitor yet, just want to make a good decision. All but one of the square LCD monitors I have used would go to 70 - 75Hz, but not much experience with the wide screen models. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
Simon, I have had this problem with monitor refresh rate for many years. Have used many different PC/monitor combos in many different work and home environments and going above 60 Hz always fixes the issue. I think my eyes/brain see the flicker at 60 Hz, but don't see it at 70Hz and above. Joe N9VX On Sun, Sep 12, 2010 at 2:47 PM, Simon HB9DRV si...@hb9drv.ch wrote: A general comment: I'm using a 30 2560 x 1600 monitor - the HP zr30W and it is outstanding and great for tired eyes. Note: it requires a dual DVI video card. I wonder whether your motion sickness is due to a 'beating' between your 60Hz mains and the 60Hz refresh rate on the computer? Suggestions: 1) You're getting 60Hz from the mains into the monitor cables via induction? 2) Try switching off the lights? 3) Try some chunky ferrite cores on the monitor cable? Simon Brown, HB9DRV, http://sdr-radio.com (Sent from my computer as I had pigeon pie for lunch) -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex- radio.biz] On Behalf Of Joe Word I have not purchased a monitor yet, just want to make a good decision. All but one of the square LCD monitors I have used would go to 70 - 75Hz, but not much experience with the wide screen models. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
Paul, In my experience, I have found that not all resolutions will allow 70 Hz and above for a specific video card/monitor combo. I would have to experiment until I found the one that worked. On my present system, I am using an LG (square type) monitor with a resolution of 1024 x 756 running at 75 Hz. My operating system is kubuntu Linux. To run the 5000A I am setting up a dedicated Microsoft box that will only run the radio and nothing else. Joe N9VX On Sun, Sep 12, 2010 at 2:51 PM, Paul Delaney - K6HR paul.hamra...@verizon.net wrote: Hey Joe, I use two 22 monitors under Windows 7 64bit. There is no choice for 75hz even when I click show unsupported modes. Maybe this is unique to my monitors Envision GL22W. I suspect this is what most folks are seeing these days. Paul Delaney - K6HR F5K PSDR 2.0 BETA WINDOWS 7 64 X25 SSD RAID 0 DP55WG i7 875k 4G DDR3 http://k6hr.dyndns.org:8080 -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Joe Word Sent: Sunday, September 12, 2010 10:40 AM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] Wide Screen Monitors Still looking for input on wide screen monitors using a refresh rate around 75Hz. If you don't know the answer, could someone with a wind screen monitor try changing the monitor setup to 75 Hz and see if it still gives you full screen, or black bars on each side. Early next I will purchase a monitor to go with my 5000A and would appreciate your input. Thanks and 73, Joe N9VX --- On Fri, Sep 10, 2010 at 2:53 PM, Joe Word joe.n...@gmail.com wrote: I have purchased a 5000A and will get an off lease computer and have questions about the monitor. I must set the monitor refresh rate above the standard 60Hz to around 75 Hz because I get motion sickness at the lower rate. I have had experience with one Dell wide screen monitor and PC, when I set the refresh rate to 70 or 75 Hz it would not work in full screen, it put black bars on each side and negating the benefit of the wide screen, is this normal or do other PC/monitor manufactures work a higher refresh rates (70 to 75 Hz) and still go full screen? If they all do this, I just as well purchase a non-wide screen monitor. Joe N9VX ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
Still looking for input on wide screen monitors using a refresh rate around 75Hz. The flicker problem used to be a real issue for some folks who were more sensitive to flicker, especially if you happened to have a CRT monitor that had a fast-decay phosphor. Nowadays, flat panel monitors have virtually eliminated the flicker problem. The reason is that older CRT monitors drew the image in the screen by sweeping a beam of electrons across the screen horizontally in discrete lines. The screen phosphor had to continue to glow after the electron beam passed by just long enough for the beam to complete painting the entire screen and returning to the same spot. If the afterglow decayed too slowly, you saw very little, if any, flicker, but any image motion was smeared or blurred on the screen. If the decay was too fast, moving images were clear and sharp, but you saw the flicker as the afterglow faded. Remember taking a snapshot or a movie of a TV screen and seeing the dark bar across the screen? That was due to the rapid decay rate of the phosphor used in the CRT. Most modern LCD panels don't build up the image that way. Instead, they assemble the picture in what is, in effect, memory, and then use that memory data to turn on or off all the appropriate transistors to light up the correct points of the screen. These memory points retain the image data until it is replaced by new data. In other words, each illuminated point stays illuminated until it is told to change, hence, no flicker, even at slow refresh rates. You can test this for yourself. Using a older CRT style monitor or TV set, spread the fingers of your hand wide apart. Hold your fingers between the CRT screen and your hand and rapidly wave your hand back and forth so it interrupts the light coming from the screen to your eye. If you hold your fingers horizontally and wave your hand vertically up and down, you will see light and dark bands as you wave your hand. These bands are caused by the rapidly fading glow of the phosphor. Now try the same hand-waving with a LCD monitor. The bands are gone. On a modern flat panel monitor, the only thing that the refresh rate should change is how smoothly rapidly moving images are displayed, but you should not see static (non-moving image) flicker at any refresh rate on a modern flat panel monitor. 73, Ralph W5JGV - WD2XSH/7 ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
Hi Joe, There have been some studies about running a monitor at 60 Hz under florescent lights. The flicker of the florescent lights is not synced with the 60Hz in the monitor. This has been known to cause stress on the eyes and brain. An often used suggestion is to change the refresh rate on the monitor to another refresh rate. This usually relieves the issues. A popular rate for most of the widescreens is 59 Hz, as this has been reported to relieve the issue, also. This is typically a United States issue as we run a 60Hz power grid. The rate is a function of the display adapter and the Monitor matchup. I would check out your computer monitor card and see what it will support on sizes and refresh rates. The order the monitor you wish appropriately. You may find you are limited in the refresh rates the widescreen monitors can handle. Jim Fuller Computer-Technical Consulting Service N7VR -- http://www.n7vr.org International TCP/IP Gateways Robot Operator -- http://www.ampr-gateways.org MTAPRS NET Server Operator -- http://www.mtaprs.net CWOP-2 -- http://www.wxqa.com IRLP Node 3398 - http://irlp.fuller.net Original ARECC contributor -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Joe Word Sent: Sunday, September 12, 2010 12:54 PM To: si...@hb9drv.ch Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] Wide Screen Monitors Simon, I have had this problem with monitor refresh rate for many years. Have used many different PC/monitor combos in many different work and home environments and going above 60 Hz always fixes the issue. I think my eyes/brain see the flicker at 60 Hz, but don't see it at 70Hz and above. Joe N9VX On Sun, Sep 12, 2010 at 2:47 PM, Simon HB9DRV si...@hb9drv.ch wrote: A general comment: I'm using a 30 2560 x 1600 monitor - the HP zr30W and it is outstanding and great for tired eyes. Note: it requires a dual DVI video card. I wonder whether your motion sickness is due to a 'beating' between your 60Hz mains and the 60Hz refresh rate on the computer? Suggestions: 1) You're getting 60Hz from the mains into the monitor cables via induction? 2) Try switching off the lights? 3) Try some chunky ferrite cores on the monitor cable? Simon Brown, HB9DRV, http://sdr-radio.com (Sent from my computer as I had pigeon pie for lunch) -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex- radio.biz] On Behalf Of Joe Word I have not purchased a monitor yet, just want to make a good decision. All but one of the square LCD monitors I have used would go to 70 - 75Hz, but not much experience with the wide screen models. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
Jim, Thanks for your input. I have the problem using florescent or non-florescent lighting. I have not purchased a PC or monitor yet, just trying to make the best decision on a purchase. Joe N9VX On Sun, Sep 12, 2010 at 6:13 PM, Jim Fuller - N7VR n...@fuller.net wrote: Hi Joe, There have been some studies about running a monitor at 60 Hz under florescent lights. The flicker of the florescent lights is not synced with the 60Hz in the monitor. This has been known to cause stress on the eyes and brain. An often used suggestion is to change the refresh rate on the monitor to another refresh rate. This usually relieves the issues. A popular rate for most of the widescreens is 59 Hz, as this has been reported to relieve the issue, also. This is typically a United States issue as we run a 60Hz power grid. The rate is a function of the display adapter and the Monitor matchup. I would check out your computer monitor card and see what it will support on sizes and refresh rates. The order the monitor you wish appropriately. You may find you are limited in the refresh rates the widescreen monitors can handle. Jim Fuller Computer-Technical Consulting Service N7VR -- http://www.n7vr.org International TCP/IP Gateways Robot Operator -- http://www.ampr-gateways.org MTAPRS NET Server Operator -- http://www.mtaprs.net CWOP-2 -- http://www.wxqa.com IRLP Node 3398 - http://irlp.fuller.net Original ARECC contributor -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Joe Word Sent: Sunday, September 12, 2010 12:54 PM To: si...@hb9drv.ch Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] Wide Screen Monitors Simon, I have had this problem with monitor refresh rate for many years. Have used many different PC/monitor combos in many different work and home environments and going above 60 Hz always fixes the issue. I think my eyes/brain see the flicker at 60 Hz, but don't see it at 70Hz and above. Joe N9VX On Sun, Sep 12, 2010 at 2:47 PM, Simon HB9DRV si...@hb9drv.ch wrote: A general comment: I'm using a 30 2560 x 1600 monitor - the HP zr30W and it is outstanding and great for tired eyes. Note: it requires a dual DVI video card. I wonder whether your motion sickness is due to a 'beating' between your 60Hz mains and the 60Hz refresh rate on the computer? Suggestions: 1) You're getting 60Hz from the mains into the monitor cables via induction? 2) Try switching off the lights? 3) Try some chunky ferrite cores on the monitor cable? Simon Brown, HB9DRV, http://sdr-radio.com (Sent from my computer as I had pigeon pie for lunch) -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex- radio.biz] On Behalf Of Joe Word I have not purchased a monitor yet, just want to make a good decision. All but one of the square LCD monitors I have used would go to 70 - 75Hz, but not much experience with the wide screen models. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
Hi Joe I have been a PC reseller for over 20 years in the UK. Don't know about your 60hz mains and what effect it has on TFT displays and nausea, as we have 50Hz in the ROTW, but I would advise you to get a good fast PC, a good make of monitor, and see what it's like, have some tungsten lamps available if your fluorescent's + monitor are affecting your vision. If you are not sure what PC to go for, see Neal's lists or Neal's PC (www.abrohamnealsoftware.com), and for TFT monitors then generally if it costs more, it's generally better... see Mitsubishi, NEC, Illyama. Oh and get LED as the contrast ratio is so superior as each pixel is its own backlight. Get it from a reputable supplier (one which has sales assistants which are older than 16) and a warranty / return guarantee Be like nike - just do it 73 de Steve G6HOQ -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Joe Word Sent: 12 September 2010 23:23 To: n...@fuller.net Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] Wide Screen Monitors Jim, Thanks for your input. I have the problem using florescent or non-florescent lighting. I have not purchased a PC or monitor yet, just trying to make the best decision on a purchase. Joe N9VX On Sun, Sep 12, 2010 at 6:13 PM, Jim Fuller - N7VR n...@fuller.net wrote: Hi Joe, There have been some studies about running a monitor at 60 Hz under florescent lights. The flicker of the florescent lights is not synced with the 60Hz in the monitor. This has been known to cause stress on the eyes and brain. An often used suggestion is to change the refresh rate on the monitor to another refresh rate. This usually relieves the issues. A popular rate for most of the widescreens is 59 Hz, as this has been reported to relieve the issue, also. This is typically a United States issue as we run a 60Hz power grid. The rate is a function of the display adapter and the Monitor matchup. I would check out your computer monitor card and see what it will support on sizes and refresh rates. The order the monitor you wish appropriately. You may find you are limited in the refresh rates the widescreen monitors can handle. Jim Fuller Computer-Technical Consulting Service N7VR -- http://www.n7vr.org International TCP/IP Gateways Robot Operator -- http://www.ampr-gateways.org MTAPRS NET Server Operator -- http://www.mtaprs.net CWOP-2 -- http://www.wxqa.com IRLP Node 3398 - http://irlp.fuller.net Original ARECC contributor -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Joe Word Sent: Sunday, September 12, 2010 12:54 PM To: si...@hb9drv.ch Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] Wide Screen Monitors Simon, I have had this problem with monitor refresh rate for many years. Have used many different PC/monitor combos in many different work and home environments and going above 60 Hz always fixes the issue. I think my eyes/brain see the flicker at 60 Hz, but don't see it at 70Hz and above. Joe N9VX On Sun, Sep 12, 2010 at 2:47 PM, Simon HB9DRV si...@hb9drv.ch wrote: A general comment: I'm using a 30 2560 x 1600 monitor - the HP zr30W and it is outstanding and great for tired eyes. Note: it requires a dual DVI video card. I wonder whether your motion sickness is due to a 'beating' between your 60Hz mains and the 60Hz refresh rate on the computer? Suggestions: 1) You're getting 60Hz from the mains into the monitor cables via induction? 2) Try switching off the lights? 3) Try some chunky ferrite cores on the monitor cable? Simon Brown, HB9DRV, http://sdr-radio.com (Sent from my computer as I had pigeon pie for lunch) -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex- radio.biz] On Behalf Of Joe Word I have not purchased a monitor yet, just want to make a good decision. All but one of the square LCD monitors I have used would go to 70 - 75Hz, but not much experience with the wide screen models. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ __ This email has been scanned for viruses by www.epagency.net If you consider this email spam, please forward it to s...@epagency.net
Re: [Flexradio] Wide Screen Monitors
Joe I have found what Ralph says below to be my experience .. I use 60Hz res LG 22 LG monitors and have no flicker. I always had to run CRTS at 70Hz or higher . I quickly checked out the specs on a several wide screen LCD's that support 75hz refresh and you are correct, you cannot get as high a resolution on 75hz refresh and they don't allow for a wide screen aspect ratio .. Here's an HP w2216 monitor supported resolutions/refresh rates for example; 640x480 at 60Hz 640x480 at 75Hz 800x600 at 60Hz 800x600 at 75Hz 832x624 at 75Hz 1024x768 at 60Hz 1024x768 at 75Hz 1152x870 at 75Hz 1152x900 at 65Hz 1280x768 at 60Hz 1280x960 at 60Hz 1280x1024 at 60Hz 1280x1024 at 75Hz 1440x900 at 60Hz 1680x1050 at 60Hz What I couldn't find out is if there are black bars on the sides or the picture is stretched horizontally. They may give you an option . I'll bet a 60hz refresh would be ok for you -- look at one in a store somewhere Dave W0DHB -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Ralph W5JGV Sent: Sunday, September 12, 2010 1:47 PM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] Wide Screen Monitors Still looking for input on wide screen monitors using a refresh rate around 75Hz. The flicker problem used to be a real issue for some folks who were more sensitive to flicker, especially if you happened to have a CRT monitor that had a fast-decay phosphor. Nowadays, flat panel monitors have virtually eliminated the flicker problem. The reason is that older CRT monitors drew the image in the screen by sweeping a beam of electrons across the screen horizontally in discrete lines. The screen phosphor had to continue to glow after the electron beam passed by just long enough for the beam to complete painting the entire screen and returning to the same spot. If the afterglow decayed too slowly, you saw very little, if any, flicker, but any image motion was smeared or blurred on the screen. If the decay was too fast, moving images were clear and sharp, but you saw the flicker as the afterglow faded. Remember taking a snapshot or a movie of a TV screen and seeing the dark bar across the screen? That was due to the rapid decay rate of the phosphor used in the CRT. Most modern LCD panels don't build up the image that way. Instead, they assemble the picture in what is, in effect, memory, and then use that memory data to turn on or off all the appropriate transistors to light up the correct points of the screen. These memory points retain the image data until it is replaced by new data. In other words, each illuminated point stays illuminated until it is told to change, hence, no flicker, even at slow refresh rates. You can test this for yourself. Using a older CRT style monitor or TV set, spread the fingers of your hand wide apart. Hold your fingers between the CRT screen and your hand and rapidly wave your hand back and forth so it interrupts the light coming from the screen to your eye. If you hold your fingers horizontally and wave your hand vertically up and down, you will see light and dark bands as you wave your hand. These bands are caused by the rapidly fading glow of the phosphor. Now try the same hand-waving with a LCD monitor. The bands are gone. On a modern flat panel monitor, the only thing that the refresh rate should change is how smoothly rapidly moving images are displayed, but you should not see static (non-moving image) flicker at any refresh rate on a modern flat panel monitor. 73, Ralph W5JGV - WD2XSH/7 ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
[Flexradio] Wide Screen Monitors
I have purchased a 5000A and will get an off lease computer and have questions about the monitor. I must set the monitor refresh rate above the standard 60Hz to around 75 Hz because I get motion sickness at the lower rate. I have had experience with one Dell wide screen monitor and PC, when I set the refresh rate to 70 or 75 Hz it would not work in full screen, it put black bars on each side and negating the benefit of the wide screen, is this normal or do other PC/monitor manufactures work a higher refresh rates (70 to 75 Hz) and still go full screen? If they all do this, I just as well purchase a non-wide screen monitor. Joe N9VX ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
Re: [Flexradio] Wide Screen Monitors
I have a Dell 22 wide screen monitor, and tried to feed it with HDMI. Would put a one inch border around the entire screen. With the DVI-D, or the VGA hookup, I get full screen. I can't tell much difference, so I left it on VGA. Never did find out why the HDMI didn't work... BTW I run a Flex5000a, and like the full screen display. 73 W8LO Larry - Original Message - From: Joe Word joe.n...@gmail.com To: flexradio@flex-radio.biz Sent: Friday, September 10, 2010 2:53 PM Subject: [Flexradio] Wide Screen Monitors I have purchased a 5000A and will get an off lease computer and have questions about the monitor. I must set the monitor refresh rate above the standard 60Hz to around 75 Hz because I get motion sickness at the lower rate. I have had experience with one Dell wide screen monitor and PC, when I set the refresh rate to 70 or 75 Hz it would not work in full screen, it put black bars on each side and negating the benefit of the wide screen, is this normal or do other PC/monitor manufactures work a higher refresh rates (70 to 75 Hz) and still go full screen? If they all do this, I just as well purchase a non-wide screen monitor. Joe N9VX ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
