Re: [time-nuts] software-defined WWVB receivers
The randomness of WWVB propagation require incredibly long measurements to get an interesting degree of accuracy compared to a GPS driven solution. The WWVB signal does respond nicely to solar flares if measurements are integrated over one minute. Check out the VLF monitoring stuff on my web page. On 02/21/2014 12:06 PM, John Seamons wrote: As a starting point: Here's an extension of the SAQrx PC sound card receiver that supports 192 KHz sample-rate sound cards. Enough to get you WWVB. https://sites.google.com/site/swljo30tb ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Chuck Forsberg WA7KGX c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc The High Reliability Software 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] software-defined WWVB receivers
I was monitoring WWVB against a good local standard and evaluating 60kHz 'seeing' 30 years ago. Sometimes it is beautifully quiet, after a storm front went through as I remember, at other times it's absolute hash... to the point that the HP 117A would not even hold lock. -John = The randomness of WWVB propagation require incredibly long measurements to get an interesting degree of accuracy compared to a GPS driven solution. The WWVB signal does respond nicely to solar flares if measurements are integrated over one minute. Check out the VLF monitoring stuff on my web page. On 02/21/2014 12:06 PM, John Seamons wrote: As a starting point: Here's an extension of the SAQrx PC sound card receiver that supports 192 KHz sample-rate sound cards. Enough to get you WWVB. https://sites.google.com/site/swljo30tb ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Chuck Forsberg WA7KGX c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc The High Reliability Software 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] software-defined WWVB receivers
As a starting point: Here's an extension of the SAQrx PC sound card receiver that supports 192 KHz sample-rate sound cards. Enough to get you WWVB. https://sites.google.com/site/swljo30tb ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
