Unsatisfactory GPS reception on PinePhone?

[Benatti]

@Benatti was that trial and error or a calculated size and position of aluminium? From one of the photos I saw recently it appears the GPS antenna has changed between my Brave Heart and whichever later revision was in the picture, which may be a reason some people are having more problems than others with reception. Unfortunately I don't remember where the photo I saw was. Anyone here have experience with antenna design?

@biketool That might be a handy way to get approximate location when you're out of mobile data range and have iffy sky view or luck with sat locations, but it's not an alternative to AGPS. I know some gps systems can get a quicker fix if you prime them with rough time and location, but I don't think this is one of them - at least I didn't see it in the GNSS AT command docs. The AGPS provides an alternate source of almanac and ephemeris data to receiving it uninterrupted and error free from the satellite signal, which can be a problem with our poor antenna.

It's going to be difficult to explain, because I'm going to write in Portuguese and play it on the translator and then post it, and there are things you need knowledge in electronics to understand.
Due to my knowledge in electronics, the size of the antenna is related to the frequency of the signal to be tuned, which can be tuned by the main frequency or by the harmonic frequencies, and by doubling the size of the antenna, you keep tuning even if it is by the harmonic and double frequency the signal strength at the antenna. Of course, there is a tuning circuit, tuned to the desired frequency, to avoid interference from other signal frequencies.
So, as for the size of the antenna, I already had an idea, and looking at the size of the antenna on the device, you will see that it was approximately the same width and twice the size, adding the antenna of the device with the piece of aluminum paper added, as for her position, it was by trial and error, this being the position that worked best for me.