On Thu, Aug 28, 2014 at 6:30 AM, Bob Stewart <b...@evoria.net> wrote: > Hi Attila, > > > Is wood, nails, and asphalt shingle really that big of a problem at these > frequencies? The antenna is within 2 ft of the highest point of the roof.
Depends on what you call a "problem". If you are getting a usable signal then some people would not call it a problem. When I moved my GPS antenna from user the roof to a pole mounted above the roof the signal improved greatly. The most notable improvements was the signal to noise ration of satellites near the horizon. > > Bob > > > > ________________________________ > From: Attila Kinali <att...@kinali.ch> > To: Bob Stewart <b...@evoria.net>; Discussion of precise time and frequency > measurement <time-nuts@febo.com> > Sent: Thursday, August 28, 2014 8:15 AM > Subject: Re: [time-nuts] Practical Survey-In Accuracy? > > > On Sat, 23 Aug 2014 16:38:42 -0700 > > > > Bob Stewart <b...@evoria.net> wrote: > >> Given that my antenna is just a puck at the peak of the attic (never got >> around to adding the DIY choke-ring) > > A choke ring will not help you much in the attic. You already have lots > of reflecting and refracting surfaces/volumes above the antenna. > Unless you get to the top of your roof, i wouldn't bother adding a choke ring. > > > Attila Kinali > _______________________________________________ > 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. -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
