On Fri, Feb 24, 2012 at 10:08 AM, unruh <un...@invalid.ca> wrote: .. > Is it evidence of some outside noise source (jamming?) , microwave tower > emission?
You would need to have a second GPS receiver set up to know that. It's a good idea to have two, hopefully different brand receivers. Does the antenna have a good view of the sky? If it is marginal then it just might be that by luck once a day there are no good GPS sats in view. I'd think a person in Canada with a GPS looking out a north window would have this problem but yours could be a less obvious case. GPS jammers have been in the news recently. Some truck drivers use them so their boss can't track the truck. Perhaps the local UPS delivery truck driver carries one. You'd need a second GPS receiver to know. Chris Albertson Redondo Beach, California _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions