Totally agree. Not sure what I am these days, but since I saw the handwriting on the wall for my O&G process engineer career, I have been transitioning to DA. Anyways, I agree. This may be a cool open source project for GitHub.So, before developing the software, develop the data stream. Right on. Mark N5PRD
Sent from Yahoo Mail for iPhone On Wednesday, March 10, 2021, 11:47 AM, John Brockus via BVARC <bvarc@bvarc.org> wrote: Speaking as a data professional, I think we need to spend some time designing the results dataset.Plotting it can come later, and there appear to be several free 3d plotting programs out there. At first pass, it looks like the raw data collected will be 4 columns:LatitudeLongitudeAltitudeMeter reading Transforming that into a 3d plot is going to be a challenge.But some 2d plots could be interesting if the data supports it. If you ever build this thing, let me know and I'll see what I can do to help. John KC9JLE On Wed, Mar 10, 2021 at 11:16 AM Mark Brantana via BVARC <bvarc@bvarc.org> wrote: Ok. There’s our software lead candidate. I think I will do some up front research on prior arts, available drones, and field strength meters. Thanks for the discussion. I’ll report back on what I find. Mark N5PRD Sent from my iPhone On Mar 10, 2021, at 11:02 AM, Rick Hiller via BVARC <bvarc@bvarc.org> wrote: I think the drone / FS pod is the easy part. Collecting and correlating the point cloud in 3D then developing a solid model is more complex unless someone has and is expert in Auto CAD 3D or similar as s start.Eric kF5HDR comes to mind. RH Sent from my i-Thingamajig On Mar 10, 2021, at 10:57 AM, Mark Brantana via BVARC <bvarc@bvarc.org> wrote: Agreed. That appears to be part of the approach in the commercial version, which looks to extend about 18” down. Mark Sent from my iPhone On Mar 10, 2021, at 10:52 AM, Nizar Mullani <mull...@tlite.com> wrote: The easiest, and cheapest solution is to hang a self contained FSM a few feet down the Drone.to get away from the PWM noise. Otherwise, you will have to filter the noise in the FSM. On Wed, Mar 10, 2021 at 10:06 AM Mark Brantana <n5...@yahoo.com> wrote: Ok. So researching the available drones and addressing noise is job one. No doubt the smaller the drone, the noisier. Likewise, the cheaper ones will probably have more noise. I was hoping since everything is DC, noise might not be an issue. But clearly it is a key consideration. Thanks Nizar. Are there fixes? Sent from my iPhone On Mar 10, 2021, at 9:53 AM, Gary Sitton <gasit...@comcast.net> wrote: Nizar is right, those drone motors are 3 phase permanent magnet, brushless DC motors with PWM controllers which are very noisy. This would require sophisticated noise canceling software as well as hardware mitigation. Gary On March 10, 2021 9:21:33 AM Nizar Mullani <mull...@tlite.com> wrote: Make sure the Drone electronics is quiet enough to not interfere with the Field Strength Measurements. Nizar K0NM On Mar 10, 2021, at 9:13 AM, Mark Brantana via BVARC <bvarc@bvarc.org> wrote: Considering you can buy a small drone with a camera for less than $100, an amateur FSD could cost less than $200. https://bunnytags.com/products/mini-hd-camera-drone-pocket-quadcopter-remote-controlled-for-kids?utm_medium=cpc&utm_source=google&utm_campaign=Google%20Shopping¤cy=USD&gclid=EAIaIQobChMIoamGyYCm7wIVUb7ACh1nAA5OEAQYCyABEgIkAvD_BwE Sent from my iPhone On Mar 10, 2021, at 9:05 AM, Gary Sitton via BVARC <bvarc@bvarc.org> wrote: Super great idea!Gary, K5AMH On March 10, 2021 12:22:18 AM Mark Brantana via BVARC <bvarc@bvarc.org> wrote: OK, what is an FSD? It is a Field Strength Drone. It’s an idea I am sure others have had, and I don’t expect to get around to designing or patenting such a thing. But inventions are often just the merging of new technologies, and this is not much different. I don’t see any YouTubes about this or any other reference, so here’s the idea: With all the capabilities of little drones I wonder if anyone has designed one which can carry a field strength meter and fly a grid around an antenna to evaluate antenna performance. The guts of my little Radio Shack FSM would have weighed way less than an ounce. Ideally, the field strength meter could communicate to the base through the drone transmitter, reducing weight. Software at the base could link the drone 3D location data with the FS reading. The drone would have to wait at test locations for the operator to transmit, and ideally would move to the next location. Finally, the software might be able to link with existing simulation software for comparison with theory and allow for simulation model improvement. This looks like it would take a small team to develop. This sounds like it would have many uses besides antenna evaluation, like RFI evaluation. What about it? Has anyone done this? 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