I got the final info on the VR Surfer from a viewer, and another viewer send in an active antenna for the Heathkit GC-1000 Most Accurate Clock, and I take a minute to take a peek inside. Enjoy!
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100 Years of the WWV - https://www.washingtonpost.com/science/these-radio-stations-dont-play-news-talk-shows-or-music-but-they-do-broadcast-very-very-accurate-time-signals/2020/01/24/3d322946-3d3e-11ea-baca-eb7ace0a3455_story.html
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Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
#Heathkit #teardown #VR
100 Years of the WWV - https://www.washingtonpost.com/science/these-radio-stations-dont-play-news-talk-shows-or-music-but-they-do-broadcast-very-very-accurate-time-signals/2020/01/24/3d322946-3d3e-11ea-baca-eb7ace0a3455_story.html
- Music by Fran Blanche -
Frantone on Facebook - https://www.facebook.com/frantone/
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
hahahhahha stoner comunication patent, it fits
Send the VR surfer to another youtuber like Techmoan / LGR /
The 8-Bit Guy please.
What if your phone would use the gps data of the gps chipset? In stead of using the mobile netword time system which uses rubidium clocks.
A lot of cellphone network antenna tower have a rubidium clock as reference for your phone but also location services etc, you can buy a used one for $100 on ebay and have your own rubidium based atomic clock in your lab, not as accurate as a cesium but also not $100k ;-), it puts out a 10 mhz signal to which you can reference your lab equipment if it has such an input.
, my Asus windows mobile phone could do that with a app and also the tomtom satnav software had a button "sync phone with gps time")
Gps also uses cesium clocks like wwv so they would be both evenly accurate in respect to repetition but maybe not in respect to absolute reference to gmt, gps tends to have less interference causing time delay inaccuracy, in that respect i think a mobile phone that uses the gps chipset outperforms a wwv based clock.
On the bright side: we are talking about tiny tiny differences ;D
I made a 7 Segment GPS clock using an Arduino feather & Neo-M8 GPS module.
The GPS module can receive GPS, Galileo, GLONASS & BeiDou signals.
Very accurate & cheap to make.
And to think, NIST was planning to cut funding for and shut down WWV, WWVB and WWVH last year. Glad that didn't happen.
An disappointingly empty box. Go on, build a retro computer and find a CRT. There must be a corner for it somewhere 🙂
Rip on fran’s lab is Rip into pieces!
Hi Fran, those caps you described as tantalums were actually dipped Mica caps FWIW. Enjoy your Videos! 🙂
I had a 3-D system from ELSA, Germany.
It worked well when used with software that was written for it or the £-D p[lotting was compatible.
Sadly ELSA went under and support for it stopped so when Windows changed it stopped working.
Also there weew no new GFX cards from ELSA to support it.
I DO remember that you Had To adjust things like eye separation distance just right or it would give you a headache.
Oddly, now that good working VR is here I'm not so excited about it …
Not gaming much right now, mainly mucking about with music But when I was gaming it would be flight sims or space stuff and trying to see cockpit controls OR the control hardware (joystick, keyboard etc) wasn't easy with VR goggles on.
Well I have them if you need the Parts.., I have a Nice DELL CRT, I got them to Push 2048×1600 resolution, But I have a few of them, I got one- two to spare..
The WWV and WWVH transmissions are pretty accurate, however Philadelphia is at least 8.3ms away from WWH in fort Collins, and 26ms away from WWVH in Hawaii in speed-of-light times due to distance. Since the signal from either of these will take some random number of bounces off the ionosphere, the actual distance for the signal could be further (and time delay longer) in a random way.
Those look like multilayer ceramic capacitors to me. The circuit is simple because it is just a switched attenuation and RF bias tee.
Send it to LGR maybe?
Is it weird that I could pull a Windows 95 PC and CRT out of my "pending recycling" pile.
Fran the amplifier is part of the external antenna. The control box is nothing more than a power supply, supplied over the coax.I had one, many years ago. Unfortunately the technology of that time period does not interface very well with the high level RF environments of most urban cities. The antenna amplified both signal and noise, often causing receiver front and overload which resulted in worse reception than without it. Not sure what frequency your clock uses, but some frequencies are better at night, while others better during daylight hours. We are at the bottom of the sunspot cycle, so in general HF propagation is rather poor. Over the next few years propagation will improve.
the only active componant seems to be the led
That Dymek pre-amp – the active gain is in the white block, as you say, phantom powered. It's apparently waterproof for outdoor use. The signal to noise ratio will be better with the amp as close to the aerial (whip antenna) as possible. The problem I see is that it's a wideband amp and may just increase all the rubbish as well as WWV…we'll see :o) You may find that your local noise source is not that mobile mast, but just switched mode psu noise from in your lab (led lights, cfl lights, chargers, wall warts, you name it) or from near neighbours. Also, if the building has a steel frame, that might be enough to kill WWV signals indoors – dependent on the spacing of the steel beams :o) Good luck though, I hope it gets you a decent signal ! (from Dave, a radio amateur in the UK)