Skipp I am aware at least in the US that there is the possibility of 5G interference along with newer possible bands that 5G can use. I have read several articles in a publication called GNSS.
Thats why I am using wwvb at 60 KHz. Humor intended. Regards Paul WB8TSL On Mon, Jul 11, 2022 at 8:49 AM skipp Isaham via time-nuts < [email protected]> wrote: > Hello to the Group, > > I'd like to get some opinions and war stories regarding GPS reliability at > high RF level and elevation locations. > > Background: Three different hill-top GPS receivers, all different types, > using > different antennas mounted on an outside fixiture, plain view of the open > sky, > all stopped working. > > Test antennas were brought in and placed on a fixture well away from the > original antennas, the recevers went back in to capture and lock. > > From what I understand, the original antennas are what I would call > straight > preamp with no pre-selection / filtering. > > The ordered and now inbound replacements are said to contain a SAW filter > system. It is the intent of the client to just place these "improved > antennas" in > to service and get on with life. > > I would suspect a GPS antenna (and receiver) could be subject to RF > overload > or blocking, however, we're assuming nothing major has changed at the > site, nor > any nearby location. One might think there are more GPS receivers being > pushed > out of reliable operation by the world around them, I'm just not hearing > those stories > from a lot of people using them (GPS receivers). > > Any new install GPS receiver antenna ordered will/should contain some > pre-selection > to potentially avoid a problem, even some years down the road? Seems like > that's > where things are going... no more off the shelf, wide band, (hot) > preamplified GPS antennas > in busy locations? > > Thank you in advance for any related comments and/or opions ... > > cheers, > > skipp > > skipp025 at jah who dot calm > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe send an email to [email protected] > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe send an email to [email protected]
