Re: [time-nuts] purpose of time of day display units

2017-01-24 Thread John Clark
Nabioullin Sent: Sunday, January 22, 2017 12:31 AM To: time-nuts@febo.com Subject: [time-nuts] purpose of time of day display units Hi, looking at pictures of various time metrology equipment setups for best practices and inspiration, I have commonly seen time of day display unit(s) installed

Re: [time-nuts] purpose of time of day display units

2017-01-23 Thread George Atkinson
or these) at the > > weekend. > > Robert G8RPI. > > > > From: Bob Bownes <bow...@gmail.com> > > To: Discussion of precise time and frequency measurement > > <time-nuts@febo.com> > > Sent: Sunday, 22 January 2017, 18:33 > > Subject: Re: [

Re: [time-nuts] purpose of time of day display units

2017-01-23 Thread Bob Camp
ual for these) at the weekend. > Robert G8RPI. > > From: Bob Bownes <bow...@gmail.com> > To: Discussion of precise time and frequency measurement <time-nuts@febo.com> > Sent: Sunday, 22 January 2017, 18:33 > Subject: Re: [time-nuts] pu

Re: [time-nuts] purpose of time of day display units

2017-01-23 Thread Tim Shoppa
http://www.washingtonpost.com/lifestyle/style/for-public-clocks-a-time-warp/2011/10/25/gIQAXOZ5jM_story.html "If the clocks are right — on churches and in classrooms, on stores and in bars — they tell us that things are in order. They tell us that people are paying attention. If a clock is wrong,

Re: [time-nuts] purpose of time of day display units

2017-01-23 Thread Robert Atkinson via time-nuts
@febo.com> Sent: Sunday, 22 January 2017, 18:33 Subject: Re: [time-nuts] purpose of time of day display units #5) Everyone likes blinkenlights. > On Jan 22, 2017, at 08:55, jimlux <jim...@earthlink.net> wrote: > >> On 1/21/17 10:31 PM, Ruslan Nabioullin wrote: >>

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Chris Albertson
I do stuff like that too. I always like to use an I2C connected LCD display while developing code on any micro processor project. I might take the actual LCD off at the end but I always leave the signal pins in place. I might need to debug the device again some time and then I can find another

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Ruslan Nabioullin
On 01/22/2017 07:26 PM, Hal Murray wrote: Many years ago, I designed network gear. That was back when a controller was a board full of small and medium sized chips rather than a single big chip. I always put a few LEDs on the board wired up where the microcode could get at them. Most of the

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Jeremy Nichols
I have done something similar to one of my cars so that, for example, an LED that tells me when the a/c compressor's electric clutch cycles on and off. Things like this are partly eye candy, partly educational (things don't always work quite like I assume they do), and partly a valuable diagnostic

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Scott Stobbe
There is a lot to be said about a tool that just works. In the advent of a piece of gear failing whether that be a firmware bug or a cooling fan, or more severe, having a known diagnostic tool during that time is priceless (well maybe not priceless but extremely nice to have). On Sun, Jan 22,

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Hal Murray
jim...@earthlink.net said: > 3) It's a crude visual check - your eye/brain is pretty good at catching a > change in the pattern of blinky lights. IN this situation, you'd expect > all the displays to change simultaneously. Is there a term similar to "eye candy" for geeks? Many years ago, I

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Chris Albertson
I used to work at a place that used a lot of those LED time displays that were hooked up to IRIG. Why were they there? Because everyone hates to toss out nice working equipment. The displays were bought ages ago and still work just fine. Many of those racks you see were assembled 15 or

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Bob Bownes
#5) Everyone likes blinkenlights. > On Jan 22, 2017, at 08:55, jimlux wrote: > >> On 1/21/17 10:31 PM, Ruslan Nabioullin wrote: >> Hi, looking at pictures of various time metrology equipment setups for >> best practices and inspiration, I have commonly seen time of day

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread jimlux
On 1/21/17 10:31 PM, Ruslan Nabioullin wrote: Hi, looking at pictures of various time metrology equipment setups for best practices and inspiration, I have commonly seen time of day display unit(s) installed in racks containing processing or time transfer equipment, e.g.,

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Tim Shoppa
The big clocks on the walls of the control center were largely eye-candy for visitors, but the individual clocks at each console were continuously used by the operators for everything (there was no computer display of time). All important technical timing was run from dedicated sequencers but it

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Poul-Henning Kamp
In message <537e808d-731c-42de-90f3-bec55363b...@sfr.fr>, Mike Cook writes: >All that these units do is merely display the time of day and >sometimes the date, typically by means of seven segment LED displays, >of the time code inputted to them (typically IRIG-B, I'm guessing). I can

Re: [time-nuts] purpose of time of day display units

2017-01-22 Thread Mike Cook
Two reasons that come to mind are: Displaying distributed time to distant sites from some master. Readability at a distance. > Le 22 janv. 2017 à 07:31, Ruslan Nabioullin a écrit : > > Hi, looking at pictures of various time metrology equipment setups for best >

[time-nuts] purpose of time of day display units

2017-01-22 Thread Ruslan Nabioullin
Hi, looking at pictures of various time metrology equipment setups for best practices and inspiration, I have commonly seen time of day display unit(s) installed in racks containing processing or time transfer equipment, e.g.,