Re: [time-nuts] WWVB Dephaser Question

2020-10-12 Thread paul swed
John I would simply use any number of receivers and grab 60 KHz out of one or could use the IF at 10 KHz or 1 KHz. But more fun to use 60 KHz. The cost on the teensy components is very reasonable. Regards Paul On Mon, Oct 12, 2020 at 7:44 PM John C. Westmoreland, P.E. <

Re: [time-nuts] WWVB Dephaser Question

2020-10-12 Thread John C. Westmoreland, P.E.
Hello Time Nuts, Chris - maybe you can share that if that's something you can share right now. Jim and Paul, Like Chris pointed out - on that audio board in the design he's worked on - the Line In has L and R channels - the input resistance is higher than for the mic input - but I suppose it's

Re: [time-nuts] WWVB Dephaser Question

2020-10-12 Thread Chris Howard
I received a good pointer about doing the BPSK implementation but have just not gotten it done. Chris Howard On 10/12/20 11:02 AM, jimlux wrote: On 10/12/20 7:40 AM, paul swed wrote: John really appreciate the pointer. Though it doesn't help wwvb BPSK its a really good intro to SDR and DSP

Re: [time-nuts] WWVB Dephaser Question

2020-10-12 Thread jimlux
On 10/12/20 7:40 AM, paul swed wrote: John really appreciate the pointer. Though it doesn't help wwvb BPSK its a really good intro to SDR and DSP super simple. A good way to get your feet wet. Hmmm is there a parts order soon? :-) Regards Paul WB8TSL And the teensy has plenty of space and

Re: [time-nuts] WWVB Dephaser Question

2020-10-12 Thread paul swed
John really appreciate the pointer. Though it doesn't help wwvb BPSK its a really good intro to SDR and DSP super simple. A good way to get your feet wet. Hmmm is there a parts order soon? :-) Regards Paul WB8TSL On Mon, Oct 12, 2020 at 10:33 AM Bob kb8tq wrote: > Hi > > The “ideal” antenna

Re: [time-nuts] Is there a good web page introducing ADEV?

2020-10-12 Thread djl
attaboy for Attila. Reality always strikes. On 2020-10-12 03:07, Attila Kinali wrote: On Thu, 24 Sep 2020 13:11:26 -0700 "Richard (Rick) Karlquist" wrote: 1. The statistics of clocks are (take your pick) a. Not gaussian, central limit theorem doesn't apply b. Not stochastic c. Not

Re: [time-nuts] WWVB Dephaser Question

2020-10-12 Thread paul swed
John had not seen this before. It is a AM decoder. But its an interesting start if you are less than 1000 miles from wwvb. Regards Paul On Mon, Oct 12, 2020 at 6:52 AM John C. Westmoreland, P.E. < j...@westmorelandengineering.com> wrote: > Paul, > > Doesn't the post by Chris Howard above appear

Re: [time-nuts] WWVB Dephaser Question

2020-10-12 Thread Bob kb8tq
Hi The “ideal” antenna solenoid would be a bit longer ( say 2 X to 5X ). The turns should be spaced apart by a few percent of the length. ( so turns over 30 or so … not so much …). How much better is “ideal” compared to “just get it done?”. At least from the stories that are told, it is

Re: [time-nuts] WWVB Dephaser Question

2020-10-12 Thread John C. Westmoreland, P.E.
Paul, Doesn't the post by Chris Howard above appear to be a good/great starting point? Seems like that approach could be extended. https://github.com/chris-elfpen/Teensy4WWVBsdr 73's, John AJ6BC On Sun, Oct 11, 2020 at 9:23 AM paul swed wrote: > Good morning to the group. Both Rodger and I