Recent content by reversevector

If you're using auto mode, set exposure compensation to -1.0 or -2.0 to preserve highlight details in the sky and sun. The ground will appear dark, a bit of brightening using a computer could help but it would still be noisy. The best option would be to bracket shoot: 3 or 5 pix with a 1-stop...

Agreed, sun shades only work if they reflect the inside top part of the shade. Maybe a 45 degree angle between the top of the shade and the tablet screen? A foam standoff behind the tablet holder could work, that's what I use with my DIY cardboard sun shade.

Well, I crashed the bird after a Litchi waypoint mission stopped halfway with a downlink disconnect. I managed to regain manual control but the video downlink never re-established itself, even after starting the app a few times and then restarting the remote. Worst of all, the bird seemed to...

How about shooting with the interval timer, does that stop if out of remote control range? I'm using my P3 Standard to do field crop mapping by stitching together a sequence of photos. I trigger the camera on interval mode manually because the Take Photo command at each waypoint only takes a...

Jumping over from the P3S forum, I had an issue where pausing a Litchi waypoint mission and then losing remote signal causes the drone to get stuck. Upon reconnecting, I couldn't initiate RTH through Litchi or by toggling the remote switch. Toggling the mode switch didn't work and the drone...

I guess the final failsafe would be a low battery RTH. Hopefully there would be enough power left to fly over 1000 m on a low battery. I ran the Litchi CSV logs through PhantomHelp's log viewer and all I saw were "Downlink lost" and "Downlink restored after 2s" messages. I think pausing the...

The funny part was that I could hear the P3 buzzing away in the distance but I couldn't see it. It's weird that RTH toggling didn't work and the bird didn't initiate RTH when the remote disconnected, it was stuck just hovering there. I should come up with a failure checklist instead of...

Talking about freaky moments, I just had the bird freeze in mid air after I stopped a running Litchi waypoint mission. I couldn't move it in F or P mode, it just sat there hovering, and even toggling RTH mode on the remote didn't work. The best (worst?) part was that it was 1000 m away. Then...

Now you got me thinking... With a parabolic, does size matter or does the curvature matter? I'll try making a soda can antenna and an enlarged version of the template windsurfer to see how they compare. I would love to get over 2 miles, I'm also flying over water or open fields.

Apparently red gives better contrast between healthy and non-healthy leaves. You can try either one depending on your lighting conditions and crops. I'm seeing some weird results if I use the SJCam around noon with a clear sky. NDVI values seem inverted; checking the histogram shows the red...

I did it once and the bird initiated RTH and tried landing... In a ditch. Luckily the remote connected with the aircraft before it tried becoming a boat. The GPS on the P3S can be off between one to five meters so I always do a manual landing unless I'm in a wide area with no obstacles.

I made a similar cantenna windsurfer but it wasn't as good as a proper parabolic antenna. IIRC I only got 1000 m on it. The curve on a soda can is a lot sharper than the gradual curve on the template antenna.

There are a few YouTube videos on converting the SJ4000 or SJ5000 to full infrared by removing the IR block filter. Then you have to add a red or blue filter (just before the sensor or as a lens filter, your call) to selectively filter out visual and infrared light. Red filter: red channel for...

You could try making a Windsurfer based on the instructions here, there's a post on it somewhere. I printed out the template and made an antenna from a piece of aluminum plate and some foam standoffs. I've gotten 2500 m or 7500 feet from this cheapo thing that cost me a buck at most. The signal...

Yeah, it's pretty simple to open up the camera and remove the IR block filter. YouTube has a lot of videos on doing this to almost any camera out there, including GoPros and small Canons.