Recent content by radman

Several years ago I was traveling through the Yakima Firing Center in Washington State. At that time the U S Army was conducting military training exercises. The road I was on was built on the side of a mountain, and the terrain was steep enough that you could not see much beside the road. I saw...

You can use Raymarine Axiom Multifunction displays and the Lighthouse 3 software to install the UAV software to control DJI Mavic Pro series quadcopters. The software automatically updates the return to home to the boats position, or you can program it to hover the drone if the signal to the RC...

Many years ago my kid received his degree in cinematography and went to work for Microsoft. He created the graphics for Bill Gates’ speeches on Apple computers.

Here’s a link to brightness measurements on current cell phones with bright displays— https://www.gsmarena.com/samsung_galaxy_s20_plus-review-2088p3.php Not quite as bright as the CrystalSky, but close. But I suspect that continuous operation at high temperatures might cause the screen to...

Diethyltoluamide, the main ingredient in most mosquito repellants. (Had to look it up, never took organic chemistry).

One of the members here actually applied for and received permission to fly his drone at Cape Disappointment State Park at the mouth of the Columbia River. But it was a long process- applying for a permit well in advance, paying a $25 fee, paying for insurance with the State of Washington as the...

African honeybees will certainly attack quadcopters, but ordinary honeybees will too. I live in Washington state where the winters are too cold for Africanized honeybees to survive. My Mavic Pro, Spark and Hubsan drones have all been attacked by worker bees (not the male drones) collecting...

From page 11 of the Skydio 2 manual: “Tapping the Return to Home button gives you the ability to have Skydio 2 automatically return to either launch point or your current location.” The Skydio 2 does not use a magnetic compass. It uses powerful magnets to hold the battery and filters in place...

My first real computer was a Nuclear Data ND 812, a big green box with all of 4K memory. It was pain to use, because you had to spend about 20 minutes hand toggling in an instruction set to load in an operating system. One mistake and you had to start all over again. After about a year I got a...

The projected image “appears” at a distance, so if you need prescription glasses you will need inserts for distant viewing. My problem is that I have beady, narrow set eyes (definitely criminal type) and astigmatism. The images projected in the Moverio glasses are spaced wider than the distance...

The video (at 1 min 30 sec) indicates that the LitraTorch contains a magnet to attach it to ferromagnetic surfaces. My Mavic Pro has magnetic interference warnings and switches compasses when it gets within 6 feet of the magnets in the bilge pumps in my boat. I’m not certain that putting a...

OK, how do you get the maps to work with your CrystalSky? All I get is a map of a city in China. I contacted Autel and they informed me that the Autel Explorer app was incompatible with the CrystalSky tablet. But obviously you have a working map. What magic did you use?

I just checked my Hoodman landing pad, and it is attracted by a magnet. The perimeter is indeed made of a ferromagnetic material and not a magnetic material. If you keep the drone centered on the landing pad, it should not interfere with the compass in the drone. You can check this by using a...

I live in a warning zone, and I just tried looking at the map in dji Go 4 apps on 3 different platforms: Samsung Galaxy S8+ (Android), iPad Air 2 (iOS), and CrystalSky (Android, sort of). I could see the maps on all 3 devices, but the map on the CrystalSky was the most legible. But I was...

Everybody that purchases a Crystal Sky tablet seems to be upset that a battery charger and mounting bracket are not included. But if you look at the forum discussions over a year old, you will find that most people thought that the Crystal Sky was originally intended to be used for the dji...