Modern chips have a lot of channels, enough to lock everything that's up - I think the 5 has the same MT3333 chip as the 3, and that has 66 channels. That is, there is no complementarity between the two systems, but a choice between one or the other' in the translation before I decided not to waste any more time reading :) Those both look like speculation without any basis in knowing how the chips actually implement location, or any information about best practice in doing that. I got as far as 'The only way to explain this is that the Fenix ?3 always uses 4 satellites from the same system (either GPS or GLONASS), regardless of the number of available satellites. If for example in your position, only 3 GPS satellites are visible and there are 4 of the GLONASS system, then your chip will calculate your position from the GLONASS signal. If it is not possible to combine the data of both systems, however our small chips are able to choose, in a given situation, the best signal (or the least bad) between the two. et réciproquement.īut what's the use of a GPS / GLONASS receiver?

Si par exemple dans votre position, seuls 3 satellites GPS sont visibles et qu'il y en a 4 du système GLONASS, alors votre puce calculera votre position à partir du signal GLONASS. S'il n'est pas possible de cumuler les données des deux systèmes, en revanche nos petites puces électroniques sont capables de choisir, dans une situation donnée, le meilleur signal (ou le moins mauvais) entre les deux. Mais alors ça sert à quoi un récepteur GPS / GLONASS ? What's your source for that? It isn't generally how GNSS chips work, and it wouldn't be very efficient as you'd need to do two parallel position calculations then select one, rather than running all satellites into the same calculation and sacrificing, effectively, one satellite's worth of data to correct clock differences between the systems.

Expert gps and fenix 5s