Install GPS Status on phone and compare findings... Jaime Solorza
On Dec 1, 2017 10:21 AM, <ch...@wbmfg.com> wrote: > If you could get (borrow) another antenna you might discover it is – or - > is not related to the FM antenna. > > *From:* Eric Muehleisen > *Sent:* Friday, December 1, 2017 10:19 AM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] GPS visible vs tracked > > We are about 120ft up on a highrise. Mounting options/locations are > limited. We plan to move it opposite of the FM antenna and 900mhz noise. > > On Fri, Dec 1, 2017 at 11:13 AM, <ch...@wbmfg.com> wrote: > >> You could temporarily move the antenna. Run a temp cable from the CMM4 >> out to the parking lot or some thing and see if the problem goes away. >> >> *From:* Eric Muehleisen >> *Sent:* Friday, December 1, 2017 7:51 AM >> *To:* af@afmug.com >> *Subject:* [AFMUG] GPS visible vs tracked >> >> We have a site where we see unusual GPS issues. I've been graphing the >> CMM4 and it visually sees between 10-15 satellites consistently. However, >> tracked satellites will go from 8-10 and drop to zero for hours at a time, >> then fully recover. This happens randomly a few times a week. It's gotten >> worse over the past month. >> >> See attached. If you notice, there is an FM antenna right next to our >> equipment. We have occasional ethernet related issue as well. This tends to >> get worse when it rains, but overall hasn't been a major issue. >> >> Could our GPS issues be related to the FM station? We plan on moving the >> GPS antenna to another location next week. Has anyone seen anything like >> this before? >> > >
