3 ms·
> You can get a great fix without AGPS Yes, after waiting minutes with good line of sight for almanac and ephemerides to download from the satellites. Anything
by seba_dos1 3y ago
> You can get a great fix without AGPS
Yes, after waiting minutes with good line of sight for almanac and ephemerides to download from the satellites. Anything that gets a fix faster is already "assisted", usually either by fresh data downloaded online or not-yet-fully-out-of-date data stored locally.
- dgacmu 3y agoSure. I was simply observing that this phrasing: > but you certainly can't get a good fix without an external party. is not true. You can get a great fix without a third party. You just have to be more patient for your TTFF. * Unless you want RTK-level accuracy, in which case you're back to needing a third party.
- seba_dos1 3y agoI've been working on a phone that didn't have well-integrated AGNSS and used MLS for WiFi and cellular-based location when it didn't have GNSS fix. I'm perfectly aware that what you're saying is technically true, but try to explain that to the users :P From the user perspective, it's not going to be a good experience if you rely on cold GNSS only on a mobile device (unless the user is already well aware of what to expect and how to behave).