Nikola Rabchevsky
  • Redondo Beach, CA
  • United States
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Looking for an IMU for UGVs

Started Sep 20, 2016 0 Replies

Does anyone know of a commercial IMU specifically designed for use in UGVs with electric motors?  I'm looking for a product that can take into account the transient magnetic fields and that doesn't…Continue

Disabling the RF output?

Started this discussion. Last reply by Jack Rogers Jun 14, 2016. 2 Replies

Here's an unusual question: Is it possible to disable the radio?I've got a device that's got a radio soldered on to it so it's not possible to unplug it.  But I'm not using the radio so I'd like to…Continue

Types of wire insulation

Started Feb 12, 2016 0 Replies

I decided to throw this out there hoping some folks would have good information on the subject of wire insulation types.I'm regularly frustrated by PVC insulation that is A) stiff, B) nicks really…Continue

Enabling GLONASS in a uBlox 7P device?

Started Aug 17, 2015 0 Replies

UBlox says that theit 7P device supports GLONASS.  I purchased one from CSGShop.  The trouble is that I can't figure out how to enable it.  I'm using the latest u-center software v8.17 and trying to…Continue

Tags: glonass, ublox

 

Nikola Rabchevsky's Page

Latest Activity

Nikola Rabchevsky commented on Nicolai Valenti's blog post New frame for my cargo drone and upcoming 4KG PAYLOAD test
"What method did you used to spec out the motor sizes and props?"
Monday
Nikola Rabchevsky commented on Nitin Gupta's blog post FlytBase Launches the World's First Internet of Drones Platform
""FlytBase is a startup based out of Palo Alto, Silicon Valley"And cloud computing by definition requires internet access.  I'm just concerned about the trend.  Right now, DJI will bork your machine if it thinks you're…"
Jul 13
Nikola Rabchevsky commented on Nitin Gupta's blog post FlytBase Launches the World's First Internet of Drones Platform
"Why does everyone in Silicon Valley assume that everyone has internet access wherever they are?"
Jul 12
Nikola Rabchevsky commented on Cameron Sickbert's blog post Emergency Response UAV Now on Indiegogo!
"So, um, what's the plan for producing these in quantity and what would a production unit cost?"
Jul 9
Nikola Rabchevsky commented on Tersus GNSS's blog post GNSS-Aided Inertial Navigation System
"There is a certain degree of "you get what you pay for" in some products.  Sure, 9 DOF IMUs are dirt cheap these days but they either don't have any sensor fusion software to go with them or the software is crap.  I wasted…"
Jul 6
Nikola Rabchevsky commented on John Arne Birkeland's blog post DJI issues forced update to GO 4 app
"Perhaps I should embellish my earlier comment.  The software is fine.  Pixhawk is fine.  But there isn't anybody making a non-MacGyver ground control station that you can fully program yourself.  (Yes, Futaba, I'm…"
Jul 4
Nikola Rabchevsky commented on John Arne Birkeland's blog post DJI issues forced update to GO 4 app
"The 3DR Solo needs to get resurrected and fully open all the source code.  We can't have the COTS UAV community ruled by DJI."
Jul 3
Nikola Rabchevsky commented on Jimmy Oliver's blog post Phantom 3 No-Servo Cargo Drop System
"What's the elevation where you conducted this test?"
Jul 3
Nikola Rabchevsky commented on Jimmy Oliver's blog post Phantom 3 No-Servo Cargo Drop System
"All paranoia aside, the FAA does allow for dropping of objects under Part 107 rules as long as you take proper precautions.  But IMHO a Phantom isn't really designed to handle several pounds of payload.  Maybe it can but there's…"
Jul 1
Nikola Rabchevsky commented on Jimmy Oliver's blog post Phantom 3 No-Servo Cargo Drop System
"I like the simplicity of it but I would think that you'd want to be able to look directly at your intended target with the camera before releasing it.  Maybe if you made it two-stage so that looking straight down "armed" it and…"
Jun 29
Nikola Rabchevsky commented on CrashingDutchman's blog post Drone Pilots Are Buying Russian Software to Hack Their Way Past DJI's No Fly Zones
"So what happens if you have proper certifications and waivers along with permission of the controlling agency?  What if you are law-enforcement?  Does anyone have DJI's NFZ's documented anywhere?"
Jun 24
Nikola Rabchevsky commented on Chris Anderson's blog post How do modern open source autopilots compare to aerospace-grade IMUs?
"This all reminds me of a time before rigid-body dynamics was readily available for CGI and video game developers. It also reminds me of Arthur C. Clarke who said, "Any sufficiently advanced technology is indistinguishable from…"
Jun 21
Nikola Rabchevsky commented on Jack's blog post The main parameters for choosing best drone battery
"Might want to add availability to the list.  Hobby King seems to have a serious shortage of certain types in the U.S. and they won't ship them from one of their international warehouses."
Jun 14
Nikola Rabchevsky commented on Jack's blog post Turnigy graphene review: can it increase flight time?
"As an added bonus, the Turnigy ones come in a faux velvet bag and inside a padded box that has little embedded magnets to keep it closed."
Jun 6
Nikola Rabchevsky commented on Hugues's blog post How does precision GPS work ( DGNSS , RTK , SBAS , PPP ) ?
"Does the M8P have the PPP feature that the 7P has (man, that's a lot of Ps)? I've used the 7P and gotten sub-meter 2D accuracy values but it's limited in that you need SBAS satellites for it to work well and it doesn't support…"
May 7
Nikola Rabchevsky commented on Isabella Domi's blog post Search and Rescue Smart Drone Project
"Talk to NASAR.  Also talk to Prof. David Lovelock at ASU.  http://math.arizona.edu/~dsl/casie/casie.htm ; You can optimize your search areas using lost person behavior statistics."
Feb 19

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