Re: [time-nuts] WWVB Translation

2018-10-27 Thread paul swed
Andy agreed I wrote about the requirements for stability when I built mine up. I did not need to add a amplifier I simply attenuated the output of the tristate gate to get to the 1000uv level then filtered and split to 6 outputs. One drives the antenna the others drive coax's to truetime and

Re: [time-nuts] WWVB Translation

2018-10-27 Thread Andy Backus
I should have credited the loop idea as you did, Paul. I don't know who it was, but thank you. I would leave my translator on all the time if it weren't for my La Crosse -- whose reception would be ruined. In my system, BTW, a resonant tank precedes a FET amplifier, which provides the

Re: [time-nuts] WWVB Translation

2018-10-27 Thread paul swed
Andy pretty much what I did also. A loop in the basement as suggested by a time-nut. Radiations quite low depending on the floor of the house and walls its 100uv to 30 uv. Did resonate it with a cap that seemed to improve things. But no matter it works for what I need and the clocks are happy. I

[time-nuts] WWVB Translation

2018-10-27 Thread Andy Backus
For those still interested in GPS to WWVB simulation -- after trying a few antenna designs I found that a 50-foot loop of #26 enameled wire stapled to the rafters in the basement works quite well. Putting 35 ma (rms) of 60 kHz WWVB signal through it lights up the house quite nicely. I don't

Re: [time-nuts] Question about noisetypes and ADEV

2018-10-27 Thread Magnus Danielson
On 10/26/18 1:42 PM, Ole Petter Ronningen wrote: > Hi, Attila > >> I see two issues here: If your random numbers are indeed between 0 and 1, >> as you write, then they are uniformly distributed, and not normally >> distributed. This will give you a slight bias when integrating. >> > > You are

Re: [time-nuts] Question about noisetypes and ADEV

2018-10-27 Thread Magnus Danielson
Hej Attila, On 10/26/18 11:50 AM, Attila Kinali wrote: > Hej Ole, > > On Fri, 26 Oct 2018 11:34:41 +0200 > Ole Petter Ronningen wrote: > >> I'm simulating some noise to try to improve my somewhat sketchy >> understanding of what goes on with the various noise types as shown on an >> ADEV plot.

Re: [time-nuts] Question about noisetypes and ADEV

2018-10-27 Thread Magnus Danielson
Hi Ole, I saw this post and thread, but waited until I had the time to address it sufficiently, as it is an important topic. As such, I really enjoy you asking the question as I am sure it will be a relevant question for many more on this list. On 10/26/18 11:34 AM, Ole Petter Ronningen wrote: >

Re: [time-nuts] Question about noisetypes and ADEV

2018-10-27 Thread Anders Wallin
> Is this some elemental effect of integration (sqrt(n) or some such), or am > I seeing the effects of bandwidth and/or bias-functions or other esoterica? > FWIW the python "colorednoise" (aka. Kasdin-Walter) repo has a figure: https://github.com/aewallin/colorednoise and code that generates the