Re: [time-nuts] WWVB a different approach to d-bpsk-r (cheating)

2012-07-19 Thread Hal Murray
As long as you don't have sunset or sunrise between you and the transmitter, WWVB is reasonably stable. At night you will get more signal, but also can have some skywave stuff in the mix. One man's noise is another man's signal. The NIST coverage maps vary widely from night to day. I

Re: [time-nuts] WWVB a different approach to d-bpsk-r (cheating)

2012-07-19 Thread paul
On 7/19/2012 1:30 PM, Hal Murray wrote: As long as you don't have sunset or sunrise between you and the transmitter, WWVB is reasonably stable. At night you will get more signal, but also can have some skywave stuff in the mix. One man's noise is another man's signal. The NIST coverage maps

Re: [time-nuts] WWVB a different approach to d-bpsk-r (cheating)

2012-07-14 Thread Bob Camp
Hi The zero crossing is very arbitrary. If it's correct at the transmit site, it will then be off everywhere else by the speed of light / distance. You will appear to be correct once every wavelength away from Colorado (roughly every 3 miles). You won't really be correct because you are

Re: [time-nuts] WWVB a different approach to d-bpsk-r (cheating)

2012-07-14 Thread paul swed
Bob Yes nights are bad for me, east coast and MSF interference. So it could be any number of 60 KHz crossing its just odd it lined up the way it did and I double confirmed that I was not doing something silly like using alternate triggers. Very careful analysis does show a 1-2 us jitter and at

Re: [time-nuts] WWVB a different approach to d-bpsk-r (cheating)

2012-07-14 Thread Magnus Danielson
Paul, On 07/14/2012 10:56 PM, paul swed wrote: Bob Yes nights are bad for me, east coast and MSF interference. So it could be any number of 60 KHz crossing its just odd it lined up the way it did and I double confirmed that I was not doing something silly like using alternate triggers. As

Re: [time-nuts] WWVB a different approach to d-bpsk-r (cheating)

2012-07-14 Thread Bob Camp
Hi Well between now and midnight, you will completely loose signal at least once. It's a pretty dramatic amplitude dip as sunset gets right to the wrong place. Bob On Jul 14, 2012, at 4:56 PM, paul swed wrote: Bob Yes nights are bad for me, east coast and MSF interference. So it could be

Re: [time-nuts] WWVB a different approach to d-bpsk-r (cheating)

2012-07-14 Thread paul swed
Might loose the signal not unusual and it did shift +5-8 us tonight aligned to the diurnal shift. So maybe this is not so crazy of an approach. Regards Paul On Sat, Jul 14, 2012 at 5:53 PM, Bob Camp li...@rtty.us wrote: Hi Well between now and midnight, you will completely loose signal at