Re: [Elecraft] K3 wish list - option to turn off display
On 080430 5:05 , [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Bob, I don't think your concerns are warranted. The LCD is an array of transistor switches which affect the transmission of light by polarizing effects of their electrostatic field. The actual light is provided by backlighting from light emitting diodes which are well known for their longevity. The Day mode will shut off the LED backlights on the LCD, but unfortunately it also ups the level of brightness for the LEDs on the controls. That would seem to be a simple fix in the firmware. Al WA6VNN I have recently got a comment from Wayne about this as it is on my wish list of things for future enhancements of the K3, he didn't seem to exited about it. (my other 3 requests are all in the next or future firmware, I guess they where more popular requests). I agree that this is not a question about lifetime of the backlight, to me it is more important to be able to use the radio in stealth mode when operating remote. I also find it useful when leaving the radio on overnight to use the band opening as an alarm clock. Wayne was very happy to receive my wish list in private mail, I think it is a good idea to use private email for any request you are serious about as it otherwise might drown in the reflector noise. 73 de Björn /SM0MDG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 wish list - option to turn off display
[EMAIL PROTECTED] wrote: I don't think your concerns are warranted. The LCD is an array of transistor switches which affect the transmission of light by polarizing effects of The sort of LCD display used on the K2, and I believe the K3, doesn't have any active components (such as transistors) on the display. their electrostatic field. The actual light is provided by backlighting from light emitting diodes which are well known for their longevity. When I first saw this thread, I assumed it was about wearing out the liquid crystals, not about the back light. Actually driving the liquid crystals will eventually wear them out, as it is not possible to completely avoid DC components in the drive (LCDs are driven by AC (acutally complex waveforms that average to zero DC for both selected and non-selected elements) to avoid elecrolysing the liquid crystals. I'd therefore say, don't worry about the backlight, except on power consumption grounds; it is the display itself you may want to power down. The Day mode will shut off the LED backlights on the LCD, but unfortunately it also ups the level of brightness for the LEDs on the controls. That would seem to be a simple fix in the firmware. Al WA6VNN In a message dated 4/27/2008 7:06:34 A.M. Pacific Daylight Time, [EMAIL PROTECTED] writes: I increasingly like to operate remote, especially when traveling. This can sometimes mean that the rig is turned on for several days. I have some concern about burn-out of the LCD display in areas where it remains unchanged for long periods. Maybe this is an unjustified worry, but it would be good to have the option to simply turn off the display when using remote operation, or even when operating the rig from a PC in the shack. Bob, G3YIQ ___ **Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos. (http://autos.aol.com/used?NCID=aolcmp0030002851) -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 wish list - option to turn off display
Bob, I don't think your concerns are warranted. The LCD is an array of transistor switches which affect the transmission of light by polarizing effects of their electrostatic field. The actual light is provided by backlighting from light emitting diodes which are well known for their longevity. The Day mode will shut off the LED backlights on the LCD, but unfortunately it also ups the level of brightness for the LEDs on the controls. That would seem to be a simple fix in the firmware. Al WA6VNN In a message dated 4/27/2008 7:06:34 A.M. Pacific Daylight Time, [EMAIL PROTECTED] writes: I increasingly like to operate remote, especially when traveling. This can sometimes mean that the rig is turned on for several days. I have some concern about burn-out of the LCD display in areas where it remains unchanged for long periods. Maybe this is an unjustified worry, but it would be good to have the option to simply turn off the display when using remote operation, or even when operating the rig from a PC in the shack. Bob, G3YIQ ___ **Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos. (http://autos.aol.com/used?NCID=aolcmp0030002851) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 wish list - option to turn off display
I increasingly like to operate remote, especially when traveling. This can sometimes mean that the rig is turned on for several days. I have some concern about burn-out of the LCD display in areas where it remains unchanged for long periods. Maybe this is an unjustified worry, but it would be good to have the option to simply turn off the display when using remote operation, or even when operating the rig from a PC in the shack. Bob, G3YIQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 wish list - option to turn off display
In a recent message, Bob Jones [EMAIL PROTECTED] wrote ... I have some concern about burn-out of the LCD display in areas where it remains unchanged for long periods. [snip] but it would be good to have the option to simply turn off the display when using remote operation, or even when operating the rig from a PC in the shack. That would be a good idea, Bob. LCD ADJ does down to 2 but perhaps zero could be used to switch the contrast off altogether. LCD BRT can show DAY which turns the backlight off. 73 -- David G4DMP Leeds, England, UK -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 wish list - option to turn off display
Bob, Steve Jackson KZ1X would be the best to respond to your concern. I understand that Steve has never turned his K2 off except for periods of upgrading and alignements. His K2 is at least 6 years old and I believe is still going strong. 73, Don W3FPR Bob Jones wrote: I increasingly like to operate remote, especially when traveling. This can sometimes mean that the rig is turned on for several days. I have some concern about burn-out of the LCD display in areas where it remains unchanged for long periods. Maybe this is an unjustified worry, but it would be good to have the option to simply turn off the display when using remote operation, or even when operating the rig from a PC in the shack. Bob, G3YIQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
