Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

I watched the episode with only a few minor buffering issues. Considering that I couldn't watch it on live TV, and the web video was free, I didn't find any reason to complain. Joe Gray W5JG On Tue, Jan 16, 2018 at 10:21 PM, djl wrote: > pbs video player sucks big ones... >

[time-nuts] LPFRS and LPRO signal breakout adapter

I have completed a layout for the signal adapter board to connect an LPFRS or LPRO compatible rubidium oscillator (or any general purpose Rb) to my X72 BNC connector/RS232 board . The LPFRS is a small rubidium oscillator. It is usually sold mounted on a heatsink with a small board that

Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

pbs video player sucks big ones... On 2018-01-16 18:47, Joseph Gray wrote: If you want to watch this episode online, go here: http://video.unctv.org/video/3008204310 This is the UNC Public TV web site. Joe Gray W5JG On Tue, Jan 16, 2018 at 2:28 PM, Bill Tracey wrote: To

Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

If you want to watch this episode online, go here: http://video.unctv.org/video/3008204310 This is the UNC Public TV web site. Joe Gray W5JG On Tue, Jan 16, 2018 at 2:28 PM, Bill Tracey wrote: > To record OTA television I use an HDHomeRun : >

Re: [time-nuts] Time interval measurement vs dual mixer method

I am working to build a small DMTD system based on Bill Riley’s paper. Bill was kind enough to send me a package with updates. In the meantime, I tested an AD8302 phase detector coupled to an HP voltmeter (HP3456 and HP3457), both with the filter set. I believe the HP3456A voltmeter filter

Re: [time-nuts] Time interval measurement vs dual mixer method

Hi You have to measure two different outputs to do what you describe. The PPS measurements are limited to > 1 x10^-10 with most counters at tau = 1 second and 2x10^-11 with some exotic models. The mixer based stuff can get around three orders of magnitude past that at the same tau. Since a

Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

I could only afford a single Accutron, so I got in the habit of storing it overnight in an orientation estimated to correct bedtime error by wake up time. I got pretty good at it. BTW thanks very much for the tip on the book- I must definitely get a copy. Dana On Tue, Jan 16, 2018 at 9:04 AM,

[time-nuts] Time interval measurement vs dual mixer method

Hello to the group! Have you ever measured frequency standard (or other precision oscillator) simultanously by time interval method (difference between 1 pps ref and 1 pps DUT) and dual mixer method (e.q. with phase/frequency comparator)? I'm very interested in results. Slawek

Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

To record OTA television I use an HDHomeRun : https://www.silicondust.com/hdhomerun/ I'll grab tonight's run of The Secret of Tuxedo Park Cheers, Bill At 09:04 AM 1/16/2018, you wrote: I can't stress enough how important Loomis was to the history of precise timekeeping in early radio,

Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

Hello to the group. I did read the book several years ago. Its quite good and I had no idea about any of this. Sort of amazing. So the fact that PBS is doing a show on this is going to be good to watch tonight. Thank you for sharing. Regards Paul WB8TSL On Tue, Jan 16, 2018 at 1:08 PM, Azelio

Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

>>...he would wear it on the outside of his wrist instead of the inside, so >>that gravity changed the rate of the tuning fork... Sort of manual turbillon... On Tue, Jan 16, 2018 at 4:04 PM, Tom Van Baak wrote: > I can't stress enough how important Loomis was to the history

Re: [time-nuts] Some HP 10811 05071-60219 info!

“Wavy lockwashers” are actually a form of spring washer known as a — wait for it — “wave washer”. General design considerations and information here. Grainger and many others carry stock. — Eric > On 2018 Jan

[time-nuts] Some HP 10811 05071-60219 info!

Hi, Attached is a schematic of the changes made to the stock 10811 for use in the HP 5071A. Also while I recently had two of them opened I noticed wavy lockwashers under the nut attaching the tuning capacitor. If you have ever had to open one up to retighten this nut you would wish all of them

Re: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

I can't stress enough how important Loomis was to the history of precise timekeeping in early radio, telephone, pendulum clock, quartz oscillator era. And for those of us who still have Loran-C receivers can thank him (Loomis Radio Navigation -> LRN -> Loran). So I highly recommend the 2003

[time-nuts] PBS, Tue evening, The Secret of Tuxedo Park

(Sorry for the clutter to those of you outside the US.) http://www.pbs.org/wgbh/americanexperience/films/secret-tuxedo-park/ Two of the shorts mentions time. Many thanks for the Tuxedo Park book suggestion many years ago. -- These are my opinions. I hate spam.