"I would suggest using the KK2 board with OpenAeroVTOL firmware. I'm not an expert on VTOL planes, but as far as I know it's the best (possibly only) firmware that handles the transition well out of the box.…"
"@Cronselaar:
Also, I forgot to mention if your goal is just a flat antenna, that can easily be done with regular round copper wire and dollar store foam board. I have seen Yagi-Uda, Moxon, and dipole loop antennas in this configuration,"
"@Cronselaar:
There are already many printed antennas available and in use. For example:
The CP patch on almost all GPS receivers.
Most bluetooth radios.
The Wi-Fi antennas built into the LCD of your laptop.
Your car remote.
Your garage door opener.…"
"You seem to be implying that what I said is factually incorrect because I'm not displaying an attitude you approve of.
That particular logical fallacy is called ad hominem, an attack which is not in keeping with the Ham Spirit, either.
Most of the…"
"I don't think that document says what you think it says. It says that a poorly-sourced 11mm OD ferrite bead can be resonant at up to ~3 GHz. It is not resonant at higher frequencies than that. Also, larger ferrites and ferrites with higher…"
"I just re-read the choke comment, and I realized that Gisela and/or Joe were talking about both air core and ferrite chokes for some reason, so I was a little off on that, but I need to clear up something else about that.
Gisela and/or Joe said that…"
"Also, to clear up a few disconnects:
A ferrite choke has a ferrite core. Ferrite is an iron-oxide ceramic material. The choke that Gisela and/or Joe showed in a previous comment was an air-core choke. Air core chokes are too big to be useful in RC.…"
"@iskess;
Those two things are not mutually exclusive.
Most "rubber ducky" antennas that come with LRS, telemetry systems, and hand-held radios are less-efficient normal-mode helical 1/4-wave monopoles, in order to tune them to frequencies much lower…"
"I can't believe you went into all that detail and didn't mention that the sleeved dipole is its own balun, and a heck of a lot more wideband and easier to tune than anything you've diagrammed here."
"You might ask Robert Blair, who's actually using drones in the "grains industry" (that's an interesting term; here we usually just call it "agriculture"). Robert has a blog and has been profiled on DiyDrones a few times."
A new Pew Research Internet Project poll on U.S. Views of Technology and the Future has found that most respondents were pessimistic about the benefits of personal and commercial drone technology.Among the findings:63% think it would be a change for…
"@R_Lefebvre:
The closest thing available to hobbyists is the Panono, but it currently only takes stills. I can't imagine the CPU that can capture video at 108 megapixels and still launch in my Bixler."
"I agree it would be nice to have a hobby version of the Google Street View camera array or the Gorgon Stare, but I don't think this camera is it, yet. The sensor is only claimed to be 1500×1500 px, and the geometry of projecting a 360° view onto a…"