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Recent content by Dave Pitman

  1. Dave Pitman

    How to? Sony A7Riii and accurate GPS data

    Just looked and the hot shoe connector Emlid sells is just for the newer modules. Here is a post where a guy made his own for the older module. https://community.emlid.com/t/hot-shoe-integration/2539
  2. Dave Pitman

    How to? Sony A7Riii and accurate GPS data

    Here is a quick find on using the module for geo-tagging images. https://community.emlid.com/t/camera-photo-geo-stamps-from-manual-photo/17340
  3. Dave Pitman

    How to? Sony A7Riii and accurate GPS data

    I have 2 of the original Emlid modules which does not have the enclosure but otherwise are very similar. With Tallysman antennas . I don't use them and would sell one for a good price if you ever want to try it out without going all in. They operate the same. But the ppk workflow may be more...
  4. Dave Pitman

    How to? Sony A7Riii and accurate GPS data

    Doug, The module records a log and a time stamp is placed in the log at each image capture via the hot shoe connection. For ppk processing, the shorter the baseline the better. So, ideally, yes, an instrument on site recording a base log in addition to the rover log on the uav (or your hand...
  5. Dave Pitman

    Yagi antennas (adapters)

    Thanks for the link. It says that only one element of the yagi is driven (wired) which in this case is the stock dipole. By that it looks like it could work. Thanks for being persistent. I did learn something! https://en.wikipedia.org/wiki/Yagi%E2%80%93Uda_antenna
  6. Dave Pitman

    Yagi antennas (adapters)

    Yes they did. Do you know that the patch antenna is not just some clip-on gismo but an actual wired connection. Why? Because that's how real antennas work. Sure. But if a clip on gismo actually does something, it can be recorded by insturments designed to measure such results. I could...
  7. Dave Pitman

    Yagi antennas (adapters)

    I don't know if you've noticed, but DJI LOVES to market the RANGE of their products. Also, if it cost Autel $2 to pass DJI up in range, why would they not do it? Like I said, if you think it improves your performance, then great. But short of actual tests with actual signal measuring...
  8. Dave Pitman

    Yagi antennas (adapters)

    Those DJI engineers are not looking too smart then, right? They could develop Occusync but missed the fact that they could just add a $2 gismo (mass produced price) and improve transmission range by so much. ! Or, their competitors could add them and blow dji out of the water. Why aren't...
  9. Dave Pitman

    Yagi antennas (adapters)

    Okay, I went and scanned the thread. I didn't see any real test, just lots of anecdotal opinions. Maybe you can get a response from Alex Greve. If he says they will work, then they will. If he says they won't, then they won't. https://www.videoaerialsystems.com/
  10. Dave Pitman

    Yagi antennas (adapters)

    I'll go look. But have you heard of the placebo effect? In physics, there is really no way that it can work. It's just attaching a yagi shaped thing to a dipole antenna. The reflectors actually do something.
  11. Dave Pitman

    Yagi antennas (adapters)

    Wind surfers work by reflection. Yagis need an actual wired connection, don't they? A 'real' yagi for 5ghz would be around 10" long and a 2.4ghz double that. I would look for a different solution if you're serious.
  12. Dave Pitman

    Matrice 300

    Exactly! Where is similar redundancy with the M200/M300 power train? These craft are meant to carry the most expensive payloads. They are not worthy of redundancy in the power train?
  13. Dave Pitman

    Matrice 300

    I'm not sure why anyone would want a controlled landing like with a crippled hex over a spinning rock ! 🤔 DJI marketing will tell you that motor or esc failure is so rare that they don't need to waste resources with redundancy. But they get a blank look when you ask if DJI will replace the...
  14. Dave Pitman

    How to? Sony A7Riii and accurate GPS data

    Doug, you can use the Emlid by itself. You'll need to rig an antenna and power to the unit. It will probably be more accurate than the drone's gps out of the box. But a lot of guys post-process the data (PPK) when highly accurate is needed. There are also some DIY workflows out there to...
  15. Dave Pitman

    How to? Sony A7Riii and accurate GPS data

    There are various kits to add an Emlid GNSS module to uas. https://emlid.com/reach/