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Standard GPS vs Advanced/Pro GPS

Discussion in 'Standard/4k Discussion' started by SpaceDan, Jun 12, 2016.

  1. SpaceDan

    Nov 6, 2015
    Likes Received:
    I have an Advanced, got a crack in the shell, so while it is being repaired I decided to buy a Standard (4K).

    I've noticed I'm going getting about 5 satellites connecting with the Standard, compared to 10-15 with the Advanced. And I quite often get a message saying "Atti Mode" because it loses GPS signal entirely momentarily.

    So from what I'm reading, the Standard/4K does not have GLONASS satellites, so does that mean that you'll always have fewer satellites connected than the Adv/Pro, and you're more likely to get a message that you're in Atti mode?

  2. Meta4

    Meta4 Moderator
    Staff Member

    Jan 8, 2014
    Likes Received:
    US GPS and Glonass are two separate satellite systems.
    The Phantom Adv and Pro can tune in to both and that gives them more sats.
    But the Phantom won't work with 3 GPS + 3 Glonass.
    The deck is bigger but the Phantom still has to have a full hand of either stye to have a good position.
    But there are lots of satellites up there so this isn't a problem.
    Here's a display of available sats at one location.
    The squares are Glonass and the circles are GPS.
  3. OrlyP

    Feb 10, 2016
    Likes Received:
    Metro Manila, Philippines
    Yup.. as you've described it, that's exactly what's happening. The Standard can only receive GPS but none of the GLONASS. It makes the Standard slightly less accurate and takes a bit longer to acquire its position. In other words, it can only receive roughly half of the satellites of what the Advanced/Pro is capable of.
  4. firestars

    Mar 10, 2016
    Likes Received:
    Glonass is not worth worrying about. It adds minimal accuracy.

    Sent from my iPhone using PhantomPilots mobile app
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